Merge pull request #353 from Avamander/patch-weather

WeatherService
2021-12-09 21:27:38 +01:00 · 2021-12-09 21:27:38 +01:00 · d29a9818af
parent b946b8d156 e8c1302cd6
commit d29a9818af
17 changed files with 1509 additions and 31 deletions
--- a/.gitmodules
+++ b/.gitmodules
@ -4,3 +4,6 @@
 [submodule "src/libs/littlefs"]
 	path = src/libs/littlefs
 	url = https://github.com/littlefs-project/littlefs.git
+[submodule "src/libs/QCBOR"]
+	path = src/libs/QCBOR
+	url = https://github.com/laurencelundblade/QCBOR.git
--- a/doc/ble.md
+++ b/doc/ble.md
@ -2,7 +2,7 @@
 ## Introduction
 This page describes the BLE implementation and API built in this firmware.

-**Note** : I'm a beginner in BLE related technologies and the information in this document reflects my current knowledge and understanding of the BLE stack. This information might be erroneous or incomplete. Feel free to submit a PR if you think you can improve it.
+**Note**: I'm a beginner in BLE related technologies and the information in this document reflects my current knowledge and understanding of the BLE stack. This information might be erroneous or incomplete. Feel free to submit a PR if you think you can improve it.

 ---

@ -72,12 +72,16 @@ The following custom services are implemented in InfiniTime:
     * [Navigation Service](NavigationService.md) : 00010000-78fc-48fe-8e23-433b3a1942d0


- - Since InfiniTime 0.13
-     * Call characteristic (extension to the Alert Notification Service): 00020001-78fc-48fe-8e23-433b3a1942d0
- 
-  
- - Since InfiniTime 1.7:
-   * [Motion Service](MotionService.md) :        00030000-78fc-48fe-8e23-433b3a1942d0
+- Since InfiniTime 0.13
+    * Call characteristic (extension to the Alert Notification Service): 00020001-78fc-48fe-8e23-433b3a1942d0
+
+
+- Since InfiniTime 1.7:
+    * [Motion Service](MotionService.md): 00030000-78fc-48fe-8e23-433b3a1942d0
+
+
+- Since InfiniTime 1.8:
+    * [Weather Service](/src/components/ble/weather/WeatherService.h): 00040000-78fc-48fe-8e23-433b3a1942d0

 ---

--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@ -358,6 +358,14 @@ set(LVGL_SRC
        libs/lvgl/src/lv_widgets/lv_win.c
        )

+set(QCBOR_SRC
+        libs/QCBOR/src/ieee754.c
+        libs/QCBOR/src/qcbor_decode.c
+        libs/QCBOR/src/qcbor_encode.c
+        libs/QCBOR/src/qcbor_err_to_str.c
+        libs/QCBOR/src/UsefulBuf.c
+        )
+
 list(APPEND IMAGE_FILES
        displayapp/icons/battery/os_battery_error.c
        displayapp/icons/battery/os_battery_100.c
@ -408,6 +416,7 @@ list(APPEND SOURCE_FILES
        displayapp/screens/Label.cpp
        displayapp/screens/FirmwareUpdate.cpp
        displayapp/screens/Music.cpp
+        displayapp/screens/Weather.cpp
        displayapp/screens/Navigation.cpp
        displayapp/screens/Metronome.cpp
        displayapp/screens/Motion.cpp
@ -473,6 +482,7 @@ list(APPEND SOURCE_FILES
        components/ble/CurrentTimeService.cpp
        components/ble/AlertNotificationService.cpp
        components/ble/MusicService.cpp
+        components/ble/weather/WeatherService.cpp
        components/ble/NavigationService.cpp
        displayapp/fonts/lv_font_navi_80.c
        components/ble/BatteryInformationService.cpp
@ -544,6 +554,7 @@ list(APPEND RECOVERY_SOURCE_FILES
        components/ble/CurrentTimeService.cpp
        components/ble/AlertNotificationService.cpp
        components/ble/MusicService.cpp
+        components/ble/weather/WeatherService.cpp
        components/ble/BatteryInformationService.cpp
        components/ble/ImmediateAlertService.cpp
        components/ble/ServiceDiscovery.cpp
@ -647,6 +658,9 @@ set(INCLUDE_FILES
        components/datetime/DateTimeController.h
        components/brightness/BrightnessController.h
        components/motion/MotionController.h
+        components/firmwarevalidator/FirmwareValidator.h
+        components/ble/BleController.h
+        components/ble/NotificationManager.h
        components/ble/NimbleController.h
        components/ble/DeviceInformationService.h
        components/ble/CurrentTimeClient.h
@ -659,6 +673,7 @@ set(INCLUDE_FILES
        components/ble/BleClient.h
        components/ble/HeartRateService.h
        components/ble/MotionService.h
+        components/ble/weather/WeatherService.h
        components/settings/Settings.h
        components/timer/TimerController.h
        components/alarm/AlarmController.h
@ -784,7 +799,7 @@ link_directories(
 )


-set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -Wall -Wno-unknown-pragmas -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin --short-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wreturn-type -Werror=return-type -fstack-usage -fno-exceptions -fno-non-call-exceptions)
+set(COMMON_FLAGS -MP -MD -mthumb -mabi=aapcs -Wall -Wextra -Warray-bounds=2 -Wformat=2 -Wformat-overflow=2 -Wformat-truncation=2 -Wformat-nonliteral -ftree-vrp -Wno-unused-parameter -Wno-missing-field-initializers -Wno-unknown-pragmas -Wno-expansion-to-defined -g3 -ffunction-sections -fdata-sections -fno-strict-aliasing -fno-builtin --short-enums -mcpu=cortex-m4 -mfloat-abi=hard -mfpu=fpv4-sp-d16 -Wreturn-type -Werror=return-type -fstack-usage -fno-exceptions -fno-non-call-exceptions)
 add_definitions(-DCONFIG_GPIO_AS_PINRESET)
 add_definitions(-DNIMBLE_CFG_CONTROLLER)
 add_definitions(-DOS_CPUTIME_FREQ)
@ -806,10 +821,10 @@ add_library(nrf-sdk STATIC ${SDK_SOURCE_FILES})
 target_include_directories(nrf-sdk SYSTEM PUBLIC . ../)
 target_include_directories(nrf-sdk SYSTEM PUBLIC ${INCLUDES_FROM_LIBS})
 target_compile_options(nrf-sdk PRIVATE
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -Og -g3>
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -O3>
+        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -Og -fno-rtti>
+        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wno-expansion-to-defined -O3 -fno-rtti>
        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
        )

@ -837,6 +852,25 @@ target_compile_options(lvgl PRIVATE
        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
        )

+# QCBOR
+add_library(QCBOR STATIC ${QCBOR_SRC})
+target_include_directories(QCBOR SYSTEM PUBLIC libs/QCBOR/inc)
+# This is required with the current configuration
+target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_FLOAT_HW_USE)
+# These are for space-saving
+target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_PREFERRED_FLOAT)
+target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_EXP_AND_MANTISSA)
+target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_INDEFINITE_LENGTH_STRINGS)
+#target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_INDEFINITE_LENGTH_ARRAYS)
+target_compile_definitions(QCBOR PUBLIC QCBOR_DISABLE_UNCOMMON_TAGS)
+target_compile_definitions(QCBOR PUBLIC USEFULBUF_CONFIG_LITTLE_ENDIAN)
+set_target_properties(QCBOR PROPERTIES LINKER_LANGUAGE C)
+target_compile_options(QCBOR PRIVATE
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -O0 -g3>
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -O3>
+        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
+        )
+
 # LITTLEFS_SRC
 add_library(littlefs STATIC ${LITTLEFS_SRC})
 target_include_directories(littlefs SYSTEM PUBLIC . ../)
@ -855,12 +889,12 @@ set(EXECUTABLE_FILE_NAME ${EXECUTABLE_NAME}-${pinetime_VERSION_MAJOR}.${pinetime
 set(NRF5_LINKER_SCRIPT "${CMAKE_SOURCE_DIR}/gcc_nrf52.ld")
 add_executable(${EXECUTABLE_NAME} ${SOURCE_FILES})
 set_target_properties(${EXECUTABLE_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_FILE_NAME})
-target_link_libraries(${EXECUTABLE_NAME} nimble nrf-sdk lvgl littlefs)
+target_link_libraries(${EXECUTABLE_NAME} nimble nrf-sdk lvgl littlefs QCBOR)
 target_compile_options(${EXECUTABLE_NAME} PUBLIC
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
-        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3 -fno-rtti>
-        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Os -fno-rtti>
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Og -g3>
+        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Os>
+        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Og -g3 -fno-rtti>
+        $<$<AND:$<COMPILE_LANGUAGE:CXX>,$<CONFIG:RELEASE>>: ${COMMON_FLAGS} -Wextra -Wformat -Wno-missing-field-initializers -Wno-unused-parameter -Os -fno-rtti>
        $<$<COMPILE_LANGUAGE:ASM>: -MP -MD -x assembler-with-cpp>
        )

@ -884,7 +918,7 @@ set(IMAGE_MCUBOOT_FILE_NAME ${EXECUTABLE_MCUBOOT_NAME}-image-${pinetime_VERSION_
 set(DFU_MCUBOOT_FILE_NAME ${EXECUTABLE_MCUBOOT_NAME}-dfu-${pinetime_VERSION_MAJOR}.${pinetime_VERSION_MINOR}.${pinetime_VERSION_PATCH}.zip)
 set(NRF5_LINKER_SCRIPT_MCUBOOT "${CMAKE_SOURCE_DIR}/gcc_nrf52-mcuboot.ld")
 add_executable(${EXECUTABLE_MCUBOOT_NAME} ${SOURCE_FILES})
-target_link_libraries(${EXECUTABLE_MCUBOOT_NAME} nimble nrf-sdk lvgl littlefs)
+target_link_libraries(${EXECUTABLE_MCUBOOT_NAME} nimble nrf-sdk lvgl littlefs QCBOR)
 set_target_properties(${EXECUTABLE_MCUBOOT_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_MCUBOOT_FILE_NAME})
 target_compile_options(${EXECUTABLE_MCUBOOT_NAME} PUBLIC
        $<$<AND:$<COMPILE_LANGUAGE:C>,$<CONFIG:DEBUG>>: ${COMMON_FLAGS} -Og -g3>
@ -920,7 +954,7 @@ endif()
 set(EXECUTABLE_RECOVERY_NAME "pinetime-recovery")
 set(EXECUTABLE_RECOVERY_FILE_NAME ${EXECUTABLE_RECOVERY_NAME}-${pinetime_VERSION_MAJOR}.${pinetime_VERSION_MINOR}.${pinetime_VERSION_PATCH})
 add_executable(${EXECUTABLE_RECOVERY_NAME} ${RECOVERY_SOURCE_FILES})
-target_link_libraries(${EXECUTABLE_RECOVERY_NAME} nimble nrf-sdk littlefs)
+target_link_libraries(${EXECUTABLE_RECOVERY_NAME} nimble nrf-sdk littlefs QCBOR)
 set_target_properties(${EXECUTABLE_RECOVERY_NAME} PROPERTIES OUTPUT_NAME ${EXECUTABLE_RECOVERY_FILE_NAME})
 target_compile_definitions(${EXECUTABLE_RECOVERY_NAME} PUBLIC "PINETIME_IS_RECOVERY")
 target_compile_options(${EXECUTABLE_RECOVERY_NAME} PUBLIC
--- a/src/components/battery/BatteryController.cpp
+++ b/src/components/battery/BatteryController.cpp
@ -3,6 +3,7 @@
 #include <hal/nrf_gpio.h>
 #include <nrfx_saadc.h>
 #include <algorithm>
+#include <cmath>

 using namespace Pinetime::Controllers;

--- a/src/components/ble/AlertNotificationService.cpp
+++ b/src/components/ble/AlertNotificationService.cpp
@ -53,8 +53,9 @@ int AlertNotificationService::OnAlert(uint16_t conn_handle, uint16_t attr_handle

    // Ignore notifications with empty message
    const auto packetLen = OS_MBUF_PKTLEN(ctxt->om);
-    if (packetLen <= headerSize)
+    if (packetLen <= headerSize) {
      return 0;
+    }

    size_t bufferSize = std::min(packetLen + stringTerminatorSize, maxBufferSize);
    auto messageSize = std::min(maxMessageSize, (bufferSize - headerSize));
--- a/src/components/ble/NimbleController.cpp
+++ b/src/components/ble/NimbleController.cpp
@ -44,6 +44,7 @@ NimbleController::NimbleController(Pinetime::System::SystemTask& systemTask,
    alertNotificationClient {systemTask, notificationManager},
    currentTimeService {dateTimeController},
    musicService {systemTask},
+    weatherService {systemTask, dateTimeController},
    navService {systemTask},
    batteryInformationService {batteryController},
    immediateAlertService {systemTask, notificationManager},
@ -88,6 +89,7 @@ void NimbleController::Init() {
  currentTimeClient.Init();
  currentTimeService.Init();
  musicService.Init();
+  weatherService.Init();
  navService.Init();
  anService.Init();
  dfuService.Init();
--- a/src/components/ble/NimbleController.h
+++ b/src/components/ble/NimbleController.h
@ -20,6 +20,7 @@
 #include "components/ble/NavigationService.h"
 #include "components/ble/ServiceDiscovery.h"
 #include "components/ble/MotionService.h"
+#include "components/ble/weather/WeatherService.h"
 #include "components/fs/FS.h"

 namespace Pinetime {
@ -72,6 +73,9 @@ namespace Pinetime {
      Pinetime::Controllers::AlertNotificationService& alertService() {
        return anService;
      };
+      Pinetime::Controllers::WeatherService& weather() {
+        return weatherService;
+      };

      uint16_t connHandle();
      void NotifyBatteryLevel(uint8_t level);
@ -99,6 +103,7 @@ namespace Pinetime {
      AlertNotificationClient alertNotificationClient;
      CurrentTimeService currentTimeService;
      MusicService musicService;
+      WeatherService weatherService;
      NavigationService navService;
      BatteryInformationService batteryInformationService;
      ImmediateAlertService immediateAlertService;
--- a/src/components/ble/weather/WeatherData.h
+++ b/src/components/ble/weather/WeatherData.h
@ -0,0 +1,385 @@
+/*  Copyright (C) 2021 Avamander
+
+    This file is part of InfiniTime.
+
+    InfiniTime is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    InfiniTime is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+/**
+ * Different weather events, weather data structures used by {@link WeatherService.h}
+ *
+ * How to upload events to the timeline?
+ *
+ * All timeline write payloads are simply CBOR-encoded payloads of the structs described below.
+ *
+ * All payloads have a mandatory header part and the dynamic part that
+ * depends on the event type specified in the header. If you don't,
+ * you'll get an error returned. Data is relatively well-validated,
+ * so keep in the bounds of the data types given.
+ *
+ * Write all struct members (CamelCase keys) into a single finite-sized map, and write it to the characteristic.
+ * Mind the MTU.
+ *
+ * How to debug?
+ *
+ * There's a Screen that you can compile into your firmware that shows currently valid events.
+ * You can adapt that to display something else. That part right now is very much work in progress
+ * because the exact requirements are not yet known.
+ *
+ *
+ * Implemented based on and other material:
+ * https://en.wikipedia.org/wiki/METAR
+ * https://www.weather.gov/jetstream/obscurationtypes
+ * http://www.faraim.org/aim/aim-4-03-14-493.html
+ */
+
+namespace Pinetime {
+  namespace Controllers {
+    class WeatherData {
+    public:
+      /**
+       * Visibility obscuration types
+       */
+      enum class obscurationtype {
+        /** No obscuration */
+        None = 0,
+        /** Water particles suspended in the air; low visibility; does not fall */
+        Fog = 1,
+        /** Tiny, dry particles in the air; invisible to the eye; opalescent */
+        Haze = 2,
+        /** Small fire-created particles suspended in the air */
+        Smoke = 3,
+        /** Fine rock powder, from for example volcanoes */
+        Ash = 4,
+        /** Fine particles of earth suspended in the air by the wind */
+        Dust = 5,
+        /** Fine particles of sand suspended in the air by the wind */
+        Sand = 6,
+        /** Water particles suspended in the air; low-ish visibility; temperature is near dewpoint */
+        Mist = 7,
+        /** This is SPECIAL in the sense that the thing raining down is doing the obscuration */
+        Precipitation = 8,
+        Length
+      };
+
+      /**
+       * Types of precipitation
+       */
+      enum class precipitationtype {
+        /**
+         * No precipitation
+         *
+         * Theoretically we could just _not_ send the event, but then
+         * how do we differentiate between no precipitation and
+         * no information about precipitation
+         */
+        None = 0,
+        /** Drops larger than a drizzle; also widely separated drizzle */
+        Rain = 1,
+        /** Fairly uniform rain consisting of fine drops */
+        Drizzle = 2,
+        /** Rain that freezes upon contact with objects and ground */
+        FreezingRain = 3,
+        /** Rain + hail; ice pellets; small translucent frozen raindrops */
+        Sleet = 4,
+        /** Larger ice pellets; falling separately or in irregular clumps */
+        Hail = 5,
+        /** Hail with smaller grains of ice; mini-snowballs */
+        SmallHail = 6,
+        /** Snow... */
+        Snow = 7,
+        /** Frozen drizzle; very small snow crystals */
+        SnowGrains = 8,
+        /** Needles; columns or plates of ice. Sometimes described as "diamond dust". In very cold regions */
+        IceCrystals = 9,
+        /** It's raining down ash, e.g. from a volcano */
+        Ash = 10,
+        Length
+      };
+
+      /**
+       * These are special events that can "enhance" the "experience" of existing weather events
+       */
+      enum class specialtype {
+        /** Strong wind with a sudden onset that lasts at least a minute */
+        Squall = 0,
+        /** Series of waves in a water body caused by the displacement of a large volume of water */
+        Tsunami = 1,
+        /** Violent; rotating column of air */
+        Tornado = 2,
+        /** Unplanned; unwanted; uncontrolled fire in an area */
+        Fire = 3,
+        /** Thunder and/or lightning */
+        Thunder = 4,
+        Length
+      };
+
+      /**
+       * These are used for weather timeline manipulation
+       * that isn't just adding to the stack of weather events
+       */
+      enum class controlcodes {
+        /** How much is stored already */
+        GetLength = 0,
+        /** This wipes the entire timeline */
+        DelTimeline = 1,
+        /** There's a currently valid timeline event with the given type */
+        HasValidEvent = 3,
+        Length
+      };
+
+      /**
+       * Events have types
+       * then they're easier to parse after sending them over the air
+       */
+      enum class eventtype : uint8_t {
+        /** @see obscuration */
+        Obscuration = 0,
+        /** @see precipitation */
+        Precipitation = 1,
+        /** @see wind */
+        Wind = 2,
+        /** @see temperature */
+        Temperature = 3,
+        /** @see airquality */
+        AirQuality = 4,
+        /** @see special */
+        Special = 5,
+        /** @see pressure */
+        Pressure = 6,
+        /** @see location */
+        Location = 7,
+        /** @see cloud */
+        Clouds = 8,
+        /** @see humidity */
+        Humidity = 9,
+        Length
+      };
+
+      /**
+       * Valid event query
+       *
+       * NOTE: Not currently available, until needs are better known
+       */
+      class ValidEventQuery {
+      public:
+        static constexpr controlcodes code = controlcodes::HasValidEvent;
+        eventtype eventType;
+      };
+
+      /** The header used for further parsing */
+      class TimelineHeader {
+      public:
+        /**
+         * UNIX timestamp
+         * TODO: This is currently WITH A TIMEZONE OFFSET!
+         * Please send events with the timestamp offset by the timezone.
+         **/
+        uint64_t timestamp;
+        /**
+         * Time in seconds until the event expires
+         *
+         * 32 bits ought to be enough for everyone
+         *
+         * If there's a newer event of the same type then it overrides this one, even if it hasn't expired
+         */
+        uint32_t expires;
+        /**
+         * What type of weather-related event
+         */
+        eventtype eventType;
+      };
+
+      /** Specifies how cloudiness is stored */
+      class Clouds : public TimelineHeader {
+      public:
+        /** Cloud coverage in percentage, 0-100% */
+        uint8_t amount;
+      };
+
+      /** Specifies how obscuration is stored */
+      class Obscuration : public TimelineHeader {
+      public:
+        /** Type of precipitation */
+        obscurationtype type;
+        /**
+         * Visibility distance in meters
+         * 65535 is reserved for unspecified
+         */
+        uint16_t amount;
+      };
+
+      /** Specifies how precipitation is stored */
+      class Precipitation : public TimelineHeader {
+      public:
+        /** Type of precipitation */
+        precipitationtype type;
+        /**
+         * How much is it going to rain? In millimeters
+         * 255 is reserved for unspecified
+         **/
+        uint8_t amount;
+      };
+
+      /**
+       * How wind speed is stored
+       *
+       * In order to represent bursts of wind instead of constant wind,
+       * you have minimum and maximum speeds.
+       *
+       * As direction can fluctuate wildly and some watchfaces might wish to display it nicely,
+       * we're following the aerospace industry weather report option of specifying a range.
+       */
+      class Wind : public TimelineHeader {
+      public:
+        /** Meters per second */
+        uint8_t speedMin;
+        /** Meters per second */
+        uint8_t speedMax;
+        /** Unitless direction between 0-255; approximately 1 unit per 0.71 degrees */
+        uint8_t directionMin;
+        /** Unitless direction between 0-255; approximately 1 unit per 0.71 degrees */
+        uint8_t directionMax;
+      };
+
+      /**
+       * How temperature is stored
+       *
+       * As it's annoying to figure out the dewpoint on the watch,
+       * please send it from the companion
+       *
+       * We don't do floats, picodegrees are not useful. Make sure to multiply.
+       */
+      class Temperature : public TimelineHeader {
+      public:
+        /**
+         * Temperature °C but multiplied by 100 (e.g. -12.50°C becomes -1250)
+         * -32768 is reserved for "no data"
+         */
+        int16_t temperature;
+        /**
+         * Dewpoint °C but multiplied by 100 (e.g. -12.50°C becomes -1250)
+         * -32768 is reserved for "no data"
+         */
+        int16_t dewPoint;
+      };
+
+      /**
+       * How location info is stored
+       *
+       * This can be mostly static with long expiration,
+       * as it usually is, but it could change during a trip for ex.
+       * so we allow changing it dynamically.
+       *
+       * Location info can be for some kind of map watchface
+       * or daylight calculations, should those be required.
+       *
+       */
+      class Location : public TimelineHeader {
+      public:
+        /** Location name */
+        std::string location;
+        /** Altitude relative to sea level in meters */
+        int16_t altitude;
+        /** Latitude, EPSG:3857 (Google Maps, Openstreetmaps datum) */
+        int32_t latitude;
+        /** Longitude, EPSG:3857 (Google Maps, Openstreetmaps datum) */
+        int32_t longitude;
+      };
+
+      /**
+       * How humidity is stored
+       */
+      class Humidity : public TimelineHeader {
+      public:
+        /** Relative humidity, 0-100% */
+        uint8_t humidity;
+      };
+
+      /**
+       * How air pressure is stored
+       */
+      class Pressure : public TimelineHeader {
+      public:
+        /** Air pressure in hectopascals (hPa) */
+        int16_t pressure;
+      };
+
+      /**
+       * How special events are stored
+       */
+      class Special : public TimelineHeader {
+      public:
+        /** Special event's type */
+        specialtype type;
+      };
+
+      /**
+       * How air quality is stored
+       *
+       * These events are a bit more complex because the topic is not simple,
+       * the intention is to heavy-lift the annoying preprocessing from the watch
+       * this allows watchface or watchapp makers to generate accurate alerts and graphics
+       *
+       * If this needs further enforced standardization, pull requests are welcome
+       */
+      class AirQuality : public TimelineHeader {
+      public:
+        /**
+         * The name of the pollution
+         *
+         * for the sake of better compatibility with watchapps
+         * that might want to use this data for say visuals
+         * don't localize the name.
+         *
+         * Ideally watchapp itself localizes the name, if it's at all needed.
+         *
+         * E.g.
+         * For generic ones use "PM0.1", "PM5", "PM10"
+         * For chemical compounds use the molecular formula e.g. "NO2", "CO2", "O3"
+         * For pollen use the genus, e.g. "Betula" for birch or "Alternaria" for that mold's spores
+         */
+        std::string polluter;
+        /**
+         * Amount of the pollution in SI units,
+         * otherwise it's going to be difficult to create UI, alerts
+         * and so on and for.
+         *
+         * See more:
+         * https://ec.europa.eu/environment/air/quality/standards.htm
+         * http://www.ourair.org/wp-content/uploads/2012-aaqs2.pdf
+         *
+         * Example units:
+         * count/m³ for pollen
+         * µgC/m³ for micrograms of organic carbon
+         * µg/m³ sulfates, PM0.1, PM1, PM2, PM10 and so on, dust
+         * mg/m³ CO2, CO
+         * ng/m³ for heavy metals
+         *
+         * List is not comprehensive, should be improved.
+         * The current ones are what watchapps assume!
+         *
+         * Note: ppb and ppm to concentration should be calculated on the companion, using
+         * the correct formula (taking into account temperature and air pressure)
+         *
+         * Note2: The amount is off by times 100, for two decimal places of precision.
+         * E.g. 54.32µg/m³ is 5432
+         *
+         */
+        uint32_t amount;
+      };
+    };
+  }
+}
--- a/src/components/ble/weather/WeatherService.cpp
+++ b/src/components/ble/weather/WeatherService.cpp
@ -0,0 +1,604 @@
+/*  Copyright (C) 2021 Avamander
+
+    This file is part of InfiniTime.
+
+    InfiniTime is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    InfiniTime is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#include <qcbor/qcbor_spiffy_decode.h>
+#include "WeatherService.h"
+#include "libs/QCBOR/inc/qcbor/qcbor.h"
+#include "systemtask/SystemTask.h"
+
+int WeatherCallback(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt, void* arg) {
+  return static_cast<Pinetime::Controllers::WeatherService*>(arg)->OnCommand(connHandle, attrHandle, ctxt);
+}
+
+namespace Pinetime {
+  namespace Controllers {
+    WeatherService::WeatherService(System::SystemTask& system, DateTime& dateTimeController)
+      : system(system), dateTimeController(dateTimeController) {
+      nullHeader = &nullTimelineheader;
+      nullTimelineheader->timestamp = 0;
+    }
+
+    void WeatherService::Init() {
+      uint8_t res = 0;
+      res = ble_gatts_count_cfg(serviceDefinition);
+      ASSERT(res == 0);
+
+      res = ble_gatts_add_svcs(serviceDefinition);
+      ASSERT(res == 0);
+    }
+
+    int WeatherService::OnCommand(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt) {
+      if (ctxt->op == BLE_GATT_ACCESS_OP_WRITE_CHR) {
+        const uint8_t packetLen = OS_MBUF_PKTLEN(ctxt->om); // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+        if (packetLen <= 0) {
+          return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+        }
+        // Decode
+        QCBORDecodeContext decodeContext;
+        UsefulBufC encodedCbor = {ctxt->om->om_data, OS_MBUF_PKTLEN(ctxt->om)}; // NOLINT(cppcoreguidelines-pro-bounds-pointer-arithmetic)
+
+        QCBORDecode_Init(&decodeContext, encodedCbor, QCBOR_DECODE_MODE_NORMAL);
+        // KINDLY provide us a fixed-length map
+        QCBORDecode_EnterMap(&decodeContext, nullptr);
+        // Always encodes to the smallest number of bytes based on the value
+        int64_t tmpTimestamp = 0;
+        QCBORDecode_GetInt64InMapSZ(&decodeContext, "Timestamp", &tmpTimestamp);
+        if (QCBORDecode_GetError(&decodeContext) != QCBOR_SUCCESS) {
+          CleanUpQcbor(&decodeContext);
+          return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+        }
+        int64_t tmpExpires = 0;
+        QCBORDecode_GetInt64InMapSZ(&decodeContext, "Expires", &tmpExpires);
+        if (QCBORDecode_GetError(&decodeContext) != QCBOR_SUCCESS || tmpExpires < 0 || tmpExpires > 4294967295) {
+          CleanUpQcbor(&decodeContext);
+          return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+        }
+        int64_t tmpEventType = 0;
+        QCBORDecode_GetInt64InMapSZ(&decodeContext, "EventType", &tmpEventType);
+        if (QCBORDecode_GetError(&decodeContext) != QCBOR_SUCCESS || tmpEventType < 0 ||
+            tmpEventType >= static_cast<int64_t>(WeatherData::eventtype::Length)) {
+          CleanUpQcbor(&decodeContext);
+          return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+        }
+
+        switch (static_cast<WeatherData::eventtype>(tmpEventType)) {
+          case WeatherData::eventtype::AirQuality: {
+            std::unique_ptr<WeatherData::AirQuality> airquality = std::make_unique<WeatherData::AirQuality>();
+            airquality->timestamp = tmpTimestamp;
+            airquality->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            airquality->expires = tmpExpires;
+
+            UsefulBufC stringBuf; // TODO: Everything ok with lifecycle here?
+            QCBORDecode_GetTextStringInMapSZ(&decodeContext, "Polluter", &stringBuf);
+            if (UsefulBuf_IsNULLOrEmptyC(stringBuf) != 0) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            airquality->polluter = std::string(static_cast<const char*>(stringBuf.ptr), stringBuf.len);
+
+            int64_t tmpAmount = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Amount", &tmpAmount);
+            if (tmpAmount < 0 || tmpAmount > 4294967295) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            airquality->amount = tmpAmount; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(airquality))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Obscuration: {
+            std::unique_ptr<WeatherData::Obscuration> obscuration = std::make_unique<WeatherData::Obscuration>();
+            obscuration->timestamp = tmpTimestamp;
+            obscuration->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            obscuration->expires = tmpExpires;
+
+            int64_t tmpType = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Type", &tmpType);
+            if (tmpType < 0 || tmpType >= static_cast<int64_t>(WeatherData::obscurationtype::Length)) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            obscuration->type = static_cast<WeatherData::obscurationtype>(tmpType);
+
+            int64_t tmpAmount = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Amount", &tmpAmount);
+            if (tmpAmount < 0 || tmpAmount > 65535) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            obscuration->amount = tmpAmount; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(obscuration))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Precipitation: {
+            std::unique_ptr<WeatherData::Precipitation> precipitation = std::make_unique<WeatherData::Precipitation>();
+            precipitation->timestamp = tmpTimestamp;
+            precipitation->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            precipitation->expires = tmpExpires;
+
+            int64_t tmpType = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Type", &tmpType);
+            if (tmpType < 0 || tmpType >= static_cast<int64_t>(WeatherData::precipitationtype::Length)) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            precipitation->type = static_cast<WeatherData::precipitationtype>(tmpType);
+
+            int64_t tmpAmount = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Amount", &tmpAmount);
+            if (tmpAmount < 0 || tmpAmount > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            precipitation->amount = tmpAmount; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(precipitation))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Wind: {
+            std::unique_ptr<WeatherData::Wind> wind = std::make_unique<WeatherData::Wind>();
+            wind->timestamp = tmpTimestamp;
+            wind->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            wind->expires = tmpExpires;
+
+            int64_t tmpMin = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "SpeedMin", &tmpMin);
+            if (tmpMin < 0 || tmpMin > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            wind->speedMin = tmpMin; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            int64_t tmpMax = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "SpeedMin", &tmpMax);
+            if (tmpMax < 0 || tmpMax > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            wind->speedMax = tmpMax; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            int64_t tmpDMin = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "DirectionMin", &tmpDMin);
+            if (tmpDMin < 0 || tmpDMin > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            wind->directionMin = tmpDMin; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            int64_t tmpDMax = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "DirectionMax", &tmpDMax);
+            if (tmpDMax < 0 || tmpDMax > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            wind->directionMax = tmpDMax; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(wind))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Temperature: {
+            std::unique_ptr<WeatherData::Temperature> temperature = std::make_unique<WeatherData::Temperature>();
+            temperature->timestamp = tmpTimestamp;
+            temperature->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            temperature->expires = tmpExpires;
+
+            int64_t tmpTemperature = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Temperature", &tmpTemperature);
+            if (tmpTemperature < -32768 || tmpTemperature > 32767) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            temperature->temperature =
+              static_cast<int16_t>(tmpTemperature); // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            int64_t tmpDewPoint = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "DewPoint", &tmpDewPoint);
+            if (tmpDewPoint < -32768 || tmpDewPoint > 32767) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            temperature->dewPoint =
+              static_cast<int16_t>(tmpDewPoint); // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(temperature))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Special: {
+            std::unique_ptr<WeatherData::Special> special = std::make_unique<WeatherData::Special>();
+            special->timestamp = tmpTimestamp;
+            special->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            special->expires = tmpExpires;
+
+            int64_t tmpType = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Type", &tmpType);
+            if (tmpType < 0 || tmpType >= static_cast<int64_t>(WeatherData::specialtype::Length)) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            special->type = static_cast<WeatherData::specialtype>(tmpType);
+
+            if (!AddEventToTimeline(std::move(special))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Pressure: {
+            std::unique_ptr<WeatherData::Pressure> pressure = std::make_unique<WeatherData::Pressure>();
+            pressure->timestamp = tmpTimestamp;
+            pressure->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            pressure->expires = tmpExpires;
+
+            int64_t tmpPressure = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Pressure", &tmpPressure);
+            if (tmpPressure < 0 || tmpPressure >= 65535) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            pressure->pressure = tmpPressure; // NOLINT(bugprone-narrowing-conversions,cppcoreguidelines-narrowing-conversions)
+
+            if (!AddEventToTimeline(std::move(pressure))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Location: {
+            std::unique_ptr<WeatherData::Location> location = std::make_unique<WeatherData::Location>();
+            location->timestamp = tmpTimestamp;
+            location->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            location->expires = tmpExpires;
+
+            UsefulBufC stringBuf; // TODO: Everything ok with lifecycle here?
+            QCBORDecode_GetTextStringInMapSZ(&decodeContext, "Location", &stringBuf);
+            if (UsefulBuf_IsNULLOrEmptyC(stringBuf) != 0) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            location->location = std::string(static_cast<const char*>(stringBuf.ptr), stringBuf.len);
+
+            int64_t tmpAltitude = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Altitude", &tmpAltitude);
+            if (tmpAltitude < -32768 || tmpAltitude >= 32767) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            location->altitude = static_cast<int16_t>(tmpAltitude);
+
+            int64_t tmpLatitude = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Latitude", &tmpLatitude);
+            if (tmpLatitude < -2147483648 || tmpLatitude >= 2147483647) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            location->latitude = static_cast<int32_t>(tmpLatitude);
+
+            int64_t tmpLongitude = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Longitude", &tmpLongitude);
+            if (tmpLongitude < -2147483648 || tmpLongitude >= 2147483647) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            location->latitude = static_cast<int32_t>(tmpLongitude);
+
+            if (!AddEventToTimeline(std::move(location))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Clouds: {
+            std::unique_ptr<WeatherData::Clouds> clouds = std::make_unique<WeatherData::Clouds>();
+            clouds->timestamp = tmpTimestamp;
+            clouds->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            clouds->expires = tmpExpires;
+
+            int64_t tmpAmount = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Amount", &tmpAmount);
+            if (tmpAmount < 0 || tmpAmount > 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            clouds->amount = static_cast<uint8_t>(tmpAmount);
+
+            if (!AddEventToTimeline(std::move(clouds))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          case WeatherData::eventtype::Humidity: {
+            std::unique_ptr<WeatherData::Humidity> humidity = std::make_unique<WeatherData::Humidity>();
+            humidity->timestamp = tmpTimestamp;
+            humidity->eventType = static_cast<WeatherData::eventtype>(tmpEventType);
+            humidity->expires = tmpExpires;
+
+            int64_t tmpType = 0;
+            QCBORDecode_GetInt64InMapSZ(&decodeContext, "Humidity", &tmpType);
+            if (tmpType < 0 || tmpType >= 255) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            humidity->humidity = static_cast<uint8_t>(tmpType);
+
+            if (!AddEventToTimeline(std::move(humidity))) {
+              CleanUpQcbor(&decodeContext);
+              return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+            }
+            break;
+          }
+          default: {
+            CleanUpQcbor(&decodeContext);
+            return BLE_ATT_ERR_INVALID_ATTR_VALUE_LEN;
+          }
+        }
+
+        QCBORDecode_ExitMap(&decodeContext);
+        GetTimelineLength();
+        TidyTimeline();
+
+        if (QCBORDecode_Finish(&decodeContext) != QCBOR_SUCCESS) {
+          return BLE_ATT_ERR_INSUFFICIENT_RES;
+        }
+      } else if (ctxt->op == BLE_GATT_ACCESS_OP_READ_CHR) {
+        // Encode
+        uint8_t buffer[64];
+        QCBOREncodeContext encodeContext;
+        /* TODO: This is very much still a test endpoint
+         *  it needs a characteristic UUID check
+         *  and actual implementations that show
+         *  what actually has to be read.
+         *  WARN: Consider commands not part of the API for now!
+         */
+        QCBOREncode_Init(&encodeContext, UsefulBuf_FROM_BYTE_ARRAY(buffer));
+        QCBOREncode_OpenMap(&encodeContext);
+        QCBOREncode_AddTextToMap(&encodeContext, "test", UsefulBuf_FROM_SZ_LITERAL("test"));
+        QCBOREncode_AddInt64ToMap(&encodeContext, "test", 1ul);
+        QCBOREncode_CloseMap(&encodeContext);
+
+        UsefulBufC encodedEvent;
+        auto uErr = QCBOREncode_Finish(&encodeContext, &encodedEvent);
+        if (uErr != 0) {
+          return BLE_ATT_ERR_INSUFFICIENT_RES;
+        }
+        auto res = os_mbuf_append(ctxt->om, &buffer, sizeof(buffer));
+        if (res == 0) {
+          return BLE_ATT_ERR_INSUFFICIENT_RES;
+        }
+
+        return 0;
+      }
+      return 0;
+    }
+
+    std::unique_ptr<WeatherData::Clouds>& WeatherService::GetCurrentClouds() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Clouds && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Clouds>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Clouds>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Obscuration>& WeatherService::GetCurrentObscuration() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Obscuration && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Obscuration>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Obscuration>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Precipitation>& WeatherService::GetCurrentPrecipitation() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Precipitation && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Precipitation>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Precipitation>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Wind>& WeatherService::GetCurrentWind() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Wind && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Wind>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Wind>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Temperature>& WeatherService::GetCurrentTemperature() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Temperature && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Temperature>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Temperature>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Humidity>& WeatherService::GetCurrentHumidity() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Humidity && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Humidity>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Humidity>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Pressure>& WeatherService::GetCurrentPressure() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Pressure && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Pressure>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Pressure>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::Location>& WeatherService::GetCurrentLocation() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Location && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::Location>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::Location>&>(*this->nullHeader);
+    }
+
+    std::unique_ptr<WeatherData::AirQuality>& WeatherService::GetCurrentQuality() {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::AirQuality && IsEventStillValid(header, currentTimestamp)) {
+          return reinterpret_cast<std::unique_ptr<WeatherData::AirQuality>&>(header);
+        }
+      }
+
+      return reinterpret_cast<std::unique_ptr<WeatherData::AirQuality>&>(*this->nullHeader);
+    }
+
+    size_t WeatherService::GetTimelineLength() const {
+      return timeline.size();
+    }
+
+    bool WeatherService::AddEventToTimeline(std::unique_ptr<WeatherData::TimelineHeader> event) {
+      if (timeline.size() == timeline.max_size()) {
+        return false;
+      }
+
+      timeline.push_back(std::move(event));
+      return true;
+    }
+
+    bool WeatherService::HasTimelineEventOfType(const WeatherData::eventtype type) const {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      for (auto&& header : timeline) {
+        if (header->eventType == type && IsEventStillValid(header, currentTimestamp)) {
+          return true;
+        }
+      }
+      return false;
+    }
+
+    void WeatherService::TidyTimeline() {
+      uint64_t timeCurrent = GetCurrentUnixTimestamp();
+      timeline.erase(std::remove_if(std::begin(timeline),
+                                    std::end(timeline),
+                                    [&](std::unique_ptr<WeatherData::TimelineHeader> const& header) {
+                                      return !IsEventStillValid(header, timeCurrent);
+                                    }),
+                     std::end(timeline));
+
+      std::sort(std::begin(timeline), std::end(timeline), CompareTimelineEvents);
+    }
+
+    bool WeatherService::CompareTimelineEvents(const std::unique_ptr<WeatherData::TimelineHeader>& first,
+                                               const std::unique_ptr<WeatherData::TimelineHeader>& second) {
+      return first->timestamp > second->timestamp;
+    }
+
+    bool WeatherService::IsEventStillValid(const std::unique_ptr<WeatherData::TimelineHeader>& uniquePtr, const uint64_t timestamp) {
+      // Not getting timestamp in isEventStillValid for more speed
+      return uniquePtr->timestamp + uniquePtr->expires >= timestamp;
+    }
+
+    uint64_t WeatherService::GetCurrentUnixTimestamp() const {
+      return std::chrono::duration_cast<std::chrono::seconds>(dateTimeController.CurrentDateTime().time_since_epoch()).count();
+    }
+
+    int16_t WeatherService::GetTodayMinTemp() const {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      uint64_t currentDayEnd = currentTimestamp - ((24 - dateTimeController.Hours()) * 60 * 60) -
+                               ((60 - dateTimeController.Minutes()) * 60) - (60 - dateTimeController.Seconds());
+      int16_t result = -32768;
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Temperature && IsEventStillValid(header, currentTimestamp) &&
+            header->timestamp < currentDayEnd &&
+            reinterpret_cast<const std::unique_ptr<WeatherData::Temperature>&>(header)->temperature != -32768) {
+          int16_t temperature = reinterpret_cast<const std::unique_ptr<WeatherData::Temperature>&>(header)->temperature;
+          if (result == -32768) {
+            result = temperature;
+          } else if (result > temperature) {
+            result = temperature;
+          } else {
+            // The temperature in this item is higher than the lowest we've found
+          }
+        }
+      }
+
+      return result;
+    }
+
+    int16_t WeatherService::GetTodayMaxTemp() const {
+      uint64_t currentTimestamp = GetCurrentUnixTimestamp();
+      uint64_t currentDayEnd = currentTimestamp - ((24 - dateTimeController.Hours()) * 60 * 60) -
+                               ((60 - dateTimeController.Minutes()) * 60) - (60 - dateTimeController.Seconds());
+      int16_t result = -32768;
+      for (auto&& header : this->timeline) {
+        if (header->eventType == WeatherData::eventtype::Temperature && IsEventStillValid(header, currentTimestamp) &&
+            header->timestamp < currentDayEnd &&
+            reinterpret_cast<const std::unique_ptr<WeatherData::Temperature>&>(header)->temperature != -32768) {
+          int16_t temperature = reinterpret_cast<const std::unique_ptr<WeatherData::Temperature>&>(header)->temperature;
+          if (result == -32768) {
+            result = temperature;
+          } else if (result < temperature) {
+            result = temperature;
+          } else {
+            // The temperature in this item is lower than the highest we've found
+          }
+        }
+      }
+
+      return result;
+    }
+
+    void WeatherService::CleanUpQcbor(QCBORDecodeContext* decodeContext) {
+      QCBORDecode_ExitMap(decodeContext);
+      QCBORDecode_Finish(decodeContext);
+    }
+  }
+}
--- a/src/components/ble/weather/WeatherService.h
+++ b/src/components/ble/weather/WeatherService.h
@ -0,0 +1,172 @@
+/*  Copyright (C) 2021 Avamander
+
+    This file is part of InfiniTime.
+
+    InfiniTime is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    InfiniTime is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#pragma once
+
+#include <cstdint>
+#include <string>
+#include <vector>
+#include <memory>
+
+#define min // workaround: nimble's min/max macros conflict with libstdc++
+#define max
+#include <host/ble_gap.h>
+#include <host/ble_uuid.h>
+#undef max
+#undef min
+
+#include "WeatherData.h"
+#include "libs/QCBOR/inc/qcbor/qcbor.h"
+#include "components/datetime/DateTimeController.h"
+
+int WeatherCallback(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt, void* arg);
+
+namespace Pinetime {
+  namespace System {
+    class SystemTask;
+  }
+  namespace Controllers {
+
+    class WeatherService {
+    public:
+      explicit WeatherService(System::SystemTask& system, DateTime& dateTimeController);
+
+      void Init();
+
+      int OnCommand(uint16_t connHandle, uint16_t attrHandle, struct ble_gatt_access_ctxt* ctxt);
+
+      /*
+       * Helper functions for quick access to currently valid data
+       */
+      std::unique_ptr<WeatherData::Location>& GetCurrentLocation();
+      std::unique_ptr<WeatherData::Clouds>& GetCurrentClouds();
+      std::unique_ptr<WeatherData::Obscuration>& GetCurrentObscuration();
+      std::unique_ptr<WeatherData::Precipitation>& GetCurrentPrecipitation();
+      std::unique_ptr<WeatherData::Wind>& GetCurrentWind();
+      std::unique_ptr<WeatherData::Temperature>& GetCurrentTemperature();
+      std::unique_ptr<WeatherData::Humidity>& GetCurrentHumidity();
+      std::unique_ptr<WeatherData::Pressure>& GetCurrentPressure();
+      std::unique_ptr<WeatherData::AirQuality>& GetCurrentQuality();
+
+      /**
+       * Searches for the current day's maximum temperature
+       * @return -32768 if there's no data, degrees Celsius times 100 otherwise
+       */
+      int16_t GetTodayMaxTemp() const;
+      /**
+       * Searches for the current day's minimum temperature
+       * @return -32768 if there's no data, degrees Celsius times 100 otherwise
+       */
+      int16_t GetTodayMinTemp() const;
+
+      /*
+       * Management functions
+       */
+      /**
+       * Adds an event to the timeline
+       * @return
+       */
+      bool AddEventToTimeline(std::unique_ptr<WeatherData::TimelineHeader> event);
+      /**
+       * Gets the current timeline length
+       */
+      size_t GetTimelineLength() const;
+      /**
+       * Checks if an event of a certain type exists in the timeline
+       */
+      bool HasTimelineEventOfType(WeatherData::eventtype type) const;
+
+    private:
+      // 00040000-78fc-48fe-8e23-433b3a1942d0
+      static constexpr ble_uuid128_t BaseUuid() {
+        return CharUuid(0x00, 0x00);
+      }
+
+      // 0004yyxx-78fc-48fe-8e23-433b3a1942d0
+      static constexpr ble_uuid128_t CharUuid(uint8_t x, uint8_t y) {
+        return ble_uuid128_t {.u = {.type = BLE_UUID_TYPE_128},
+                              .value = {0xd0, 0x42, 0x19, 0x3a, 0x3b, 0x43, 0x23, 0x8e, 0xfe, 0x48, 0xfc, 0x78, y, x, 0x04, 0x00}};
+      }
+
+      ble_uuid128_t weatherUuid {BaseUuid()};
+
+      /**
+       * Just write timeline data here.
+       *
+       * See {@link WeatherData.h} for more information.
+       */
+      ble_uuid128_t weatherDataCharUuid {CharUuid(0x00, 0x01)};
+      /**
+       * This doesn't take timeline data, provides some control over it.
+       *
+       * NOTE: Currently not supported. Companion app implementer feedback required.
+       * There's very little point in solidifying an API before we know the needs.
+       */
+      ble_uuid128_t weatherControlCharUuid {CharUuid(0x00, 0x02)};
+
+      const struct ble_gatt_chr_def characteristicDefinition[3] = {
+        {.uuid = &weatherDataCharUuid.u,
+         .access_cb = WeatherCallback,
+         .arg = this,
+         .flags = BLE_GATT_CHR_F_WRITE,
+         .val_handle = &eventHandle},
+        {.uuid = &weatherControlCharUuid.u, .access_cb = WeatherCallback, .arg = this, .flags = BLE_GATT_CHR_F_WRITE | BLE_GATT_CHR_F_READ},
+        {nullptr}};
+      const struct ble_gatt_svc_def serviceDefinition[2] = {
+        {.type = BLE_GATT_SVC_TYPE_PRIMARY, .uuid = &weatherUuid.u, .characteristics = characteristicDefinition}, {0}};
+
+      uint16_t eventHandle {};
+
+      Pinetime::System::SystemTask& system;
+      Pinetime::Controllers::DateTime& dateTimeController;
+
+      std::vector<std::unique_ptr<WeatherData::TimelineHeader>> timeline;
+      std::unique_ptr<WeatherData::TimelineHeader> nullTimelineheader = std::make_unique<WeatherData::TimelineHeader>();
+      std::unique_ptr<WeatherData::TimelineHeader>* nullHeader;
+
+      /**
+       * Cleans up the timeline of expired events
+       */
+      void TidyTimeline();
+
+      /**
+       * Compares two timeline events
+       */
+      static bool CompareTimelineEvents(const std::unique_ptr<WeatherData::TimelineHeader>& first,
+                                        const std::unique_ptr<WeatherData::TimelineHeader>& second);
+
+      /**
+       * Returns current UNIX timestamp
+       */
+      uint64_t GetCurrentUnixTimestamp() const;
+
+      /**
+       * Checks if the event hasn't gone past and expired
+       *
+       * @param header timeline event to check
+       * @param currentTimestamp what's the time right now
+       * @return if the event is valid
+       */
+      static bool IsEventStillValid(const std::unique_ptr<WeatherData::TimelineHeader>& uniquePtr, const uint64_t timestamp);
+
+      /**
+       * This is a helper function that closes a QCBOR map and decoding context cleanly
+       */
+      void CleanUpQcbor(QCBORDecodeContext* decodeContext);
+    };
+  }
+}
--- a/src/displayapp/Apps.h
+++ b/src/displayapp/Apps.h
@ -25,6 +25,7 @@ namespace Pinetime {
      Metronome,
      Motion,
      Steps,
+      Weather,
      PassKey,
      QuickSettings,
      Settings,
--- a/src/displayapp/screens/SystemInfo.cpp
+++ b/src/displayapp/screens/SystemInfo.cpp
@ -274,4 +274,4 @@ std::unique_ptr<Screen> SystemInfo::CreateScreen5() {
  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
  return std::make_unique<Screens::Label>(4, 5, app, label);
-}
+}
--- a/src/displayapp/screens/Weather.cpp
+++ b/src/displayapp/screens/Weather.cpp
@ -0,0 +1,222 @@
+/*  Copyright (C) 2021 Avamander
+
+    This file is part of InfiniTime.
+
+    InfiniTime is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published
+    by the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+    InfiniTime is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program.  If not, see <https://www.gnu.org/licenses/>.
+*/
+#include "Weather.h"
+#include <lvgl/lvgl.h>
+#include <components/ble/weather/WeatherService.h>
+#include "Label.h"
+#include "components/battery/BatteryController.h"
+#include "components/ble/BleController.h"
+#include "components/ble/weather/WeatherData.h"
+
+using namespace Pinetime::Applications::Screens;
+
+Weather::Weather(Pinetime::Applications::DisplayApp* app, Pinetime::Controllers::WeatherService& weather)
+  : Screen(app),
+    dateTimeController {dateTimeController},
+    weatherService(weather),
+    screens {app,
+             0,
+             {[this]() -> std::unique_ptr<Screen> {
+                return CreateScreenTemperature();
+              },
+              [this]() -> std::unique_ptr<Screen> {
+                return CreateScreenAir();
+              },
+              [this]() -> std::unique_ptr<Screen> {
+                return CreateScreenClouds();
+              },
+              [this]() -> std::unique_ptr<Screen> {
+                return CreateScreenPrecipitation();
+              },
+              [this]() -> std::unique_ptr<Screen> {
+                return CreateScreenHumidity();
+              }},
+             Screens::ScreenListModes::UpDown} {
+}
+
+Weather::~Weather() {
+  lv_obj_clean(lv_scr_act());
+}
+
+void Weather::Refresh() {
+  if (running) {
+    // screens.Refresh();
+  }
+}
+
+bool Weather::OnButtonPushed() {
+  running = false;
+  return true;
+}
+
+bool Weather::OnTouchEvent(Pinetime::Applications::TouchEvents event) {
+  return screens.OnTouchEvent(event);
+}
+
+std::unique_ptr<Screen> Weather::CreateScreenTemperature() {
+  lv_obj_t* label = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label, true);
+  std::unique_ptr<Controllers::WeatherData::Temperature>& current = weatherService.GetCurrentTemperature();
+  if (current->timestamp == 0) {
+    // Do not use the data, it's invalid
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Temperature#\n\n"
+                          "#444444 %d#°C \n\n"
+                          "#444444 %d#\n\n"
+                          "%d\n"
+                          "%d\n",
+                          0,
+                          0,
+                          0,
+                          0);
+  } else {
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Temperature#\n\n"
+                          "#444444 %d#°C \n\n"
+                          "#444444 %hd#\n\n"
+                          "%llu\n"
+                          "%lu\n",
+                          current->temperature / 100,
+                          current->dewPoint,
+                          current->timestamp,
+                          current->expires);
+  }
+  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
+  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
+  return std::unique_ptr<Screen>(new Screens::Label(0, 5, app, label));
+}
+
+std::unique_ptr<Screen> Weather::CreateScreenAir() {
+  lv_obj_t* label = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label, true);
+  std::unique_ptr<Controllers::WeatherData::AirQuality>& current = weatherService.GetCurrentQuality();
+  if (current->timestamp == 0) {
+    // Do not use the data, it's invalid
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Air quality#\n\n"
+                          "#444444 %s#\n"
+                          "#444444 %d#\n\n"
+                          "%d\n"
+                          "%d\n",
+                          "",
+                          0,
+                          0,
+                          0);
+  } else {
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Air quality#\n\n"
+                          "#444444 %s#\n"
+                          "#444444 %lu#\n\n"
+                          "%llu\n"
+                          "%lu\n",
+                          current->polluter.c_str(),
+                          (current->amount / 100),
+                          current->timestamp,
+                          current->expires);
+  }
+  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
+  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
+  return std::unique_ptr<Screen>(new Screens::Label(0, 5, app, label));
+}
+
+std::unique_ptr<Screen> Weather::CreateScreenClouds() {
+  lv_obj_t* label = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label, true);
+  std::unique_ptr<Controllers::WeatherData::Clouds>& current = weatherService.GetCurrentClouds();
+  if (current->timestamp == 0) {
+    // Do not use the data, it's invalid
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Clouds#\n\n"
+                          "#444444 %d%%#\n\n"
+                          "%d\n"
+                          "%d\n",
+                          0,
+                          0,
+                          0);
+  } else {
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Clouds#\n\n"
+                          "#444444 %hhu%%#\n\n"
+                          "%llu\n"
+                          "%lu\n",
+                          current->amount,
+                          current->timestamp,
+                          current->expires);
+  }
+  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
+  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
+  return std::unique_ptr<Screen>(new Screens::Label(0, 5, app, label));
+}
+
+std::unique_ptr<Screen> Weather::CreateScreenPrecipitation() {
+  lv_obj_t* label = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label, true);
+  std::unique_ptr<Controllers::WeatherData::Precipitation>& current = weatherService.GetCurrentPrecipitation();
+  if (current->timestamp == 0) {
+    // Do not use the data, it's invalid
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Precipitation#\n\n"
+                          "#444444 %d%%#\n\n"
+                          "%d\n"
+                          "%d\n",
+                          0,
+                          0,
+                          0);
+  } else {
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Precipitation#\n\n"
+                          "#444444 %hhu%%#\n\n"
+                          "%llu\n"
+                          "%lu\n",
+                          current->amount,
+                          current->timestamp,
+                          current->expires);
+  }
+  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
+  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
+  return std::unique_ptr<Screen>(new Screens::Label(0, 5, app, label));
+}
+
+std::unique_ptr<Screen> Weather::CreateScreenHumidity() {
+  lv_obj_t* label = lv_label_create(lv_scr_act(), nullptr);
+  lv_label_set_recolor(label, true);
+  std::unique_ptr<Controllers::WeatherData::Humidity>& current = weatherService.GetCurrentHumidity();
+  if (current->timestamp == 0) {
+    // Do not use the data, it's invalid
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Humidity#\n\n"
+                          "#444444 %d%%#\n\n"
+                          "%d\n"
+                          "%d\n",
+                          0,
+                          0,
+                          0);
+  } else {
+    lv_label_set_text_fmt(label,
+                          "#FFFF00 Humidity#\n\n"
+                          "#444444 %hhu%%#\n\n"
+                          "%llu\n"
+                          "%lu\n",
+                          current->humidity,
+                          current->timestamp,
+                          current->expires);
+  }
+  lv_label_set_align(label, LV_LABEL_ALIGN_CENTER);
+  lv_obj_align(label, lv_scr_act(), LV_ALIGN_CENTER, 0, 0);
+  return std::unique_ptr<Screen>(new Screens::Label(0, 5, app, label));
+}
--- a/src/displayapp/screens/Weather.h
+++ b/src/displayapp/screens/Weather.h
@ -0,0 +1,45 @@
+#pragma once
+
+#include <memory>
+#include <components/ble/weather/WeatherService.h>
+#include "Screen.h"
+#include "ScreenList.h"
+
+namespace Pinetime {
+  namespace Applications {
+    class DisplayApp;
+
+    namespace Screens {
+      class Weather : public Screen {
+      public:
+        explicit Weather(DisplayApp* app, Pinetime::Controllers::WeatherService& weather);
+
+        ~Weather() override;
+
+        void Refresh() override;
+
+        bool OnButtonPushed() override;
+
+        bool OnTouchEvent(TouchEvents event) override;
+
+      private:
+        bool running = true;
+
+        Pinetime::Controllers::DateTime& dateTimeController;
+        Controllers::WeatherService& weatherService;
+
+        ScreenList<5> screens;
+
+        std::unique_ptr<Screen> CreateScreenTemperature();
+
+        std::unique_ptr<Screen> CreateScreenAir();
+
+        std::unique_ptr<Screen> CreateScreenClouds();
+
+        std::unique_ptr<Screen> CreateScreenPrecipitation();
+
+        std::unique_ptr<Screen> CreateScreenHumidity();
+      };
+    }
+  }
+}
--- a/src/displayapp/screens/settings/SettingSteps.cpp
+++ b/src/displayapp/screens/settings/SettingSteps.cpp
@ -6,8 +6,8 @@
 using namespace Pinetime::Applications::Screens;

 namespace {
-  static void event_handler(lv_obj_t * obj, lv_event_t event) {
-    SettingSteps* screen = static_cast<SettingSteps *>(obj->user_data);
+  void event_handler(lv_obj_t* obj, lv_event_t event) {
+    SettingSteps* screen = static_cast<SettingSteps*>(obj->user_data);
    screen->UpdateSelected(obj, event);
  }
 }
@ -30,33 +30,32 @@ SettingSteps::SettingSteps(
  lv_obj_set_height(container1, LV_VER_RES - 60);
  lv_cont_set_layout(container1, LV_LAYOUT_COLUMN_LEFT);

-  lv_obj_t * title = lv_label_create(lv_scr_act(), NULL);  
+  lv_obj_t* title = lv_label_create(lv_scr_act(), nullptr);
  lv_label_set_text_static(title,"Daily steps goal");
  lv_label_set_align(title, LV_LABEL_ALIGN_CENTER);
  lv_obj_align(title, lv_scr_act(), LV_ALIGN_IN_TOP_MID, 15, 15);

-  lv_obj_t * icon = lv_label_create(lv_scr_act(), NULL);
+  lv_obj_t* icon = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_color(icon, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, LV_COLOR_ORANGE);
  
  lv_label_set_text_static(icon, Symbols::shoe);
  lv_label_set_align(icon, LV_LABEL_ALIGN_CENTER);
  lv_obj_align(icon, title, LV_ALIGN_OUT_LEFT_MID, -10, 0);

-
-  stepValue = lv_label_create(lv_scr_act(), NULL);
+  stepValue = lv_label_create(lv_scr_act(), nullptr);
  lv_obj_set_style_local_text_font(stepValue, LV_LABEL_PART_MAIN, LV_STATE_DEFAULT, &jetbrains_mono_42);
  lv_label_set_text_fmt(stepValue, "%lu", settingsController.GetStepsGoal());
  lv_label_set_align(stepValue, LV_LABEL_ALIGN_CENTER);
  lv_obj_align(stepValue, lv_scr_act(), LV_ALIGN_CENTER, 0, -10);

-  btnPlus = lv_btn_create(lv_scr_act(), NULL);
+  btnPlus = lv_btn_create(lv_scr_act(), nullptr);
  btnPlus->user_data = this;
  lv_obj_set_size(btnPlus, 80, 50);
  lv_obj_align(btnPlus, lv_scr_act(), LV_ALIGN_CENTER, 55, 80);
  lv_obj_set_style_local_value_str(btnPlus, LV_BTN_PART_MAIN, LV_STATE_DEFAULT, "+");
  lv_obj_set_event_cb(btnPlus, event_handler);

-  btnMinus = lv_btn_create(lv_scr_act(), NULL);
+  btnMinus = lv_btn_create(lv_scr_act(), nullptr);
  btnMinus->user_data = this;
  lv_obj_set_size(btnMinus, 80, 50);
  lv_obj_set_event_cb(btnMinus, event_handler);
--- a/src/libs/QCBOR
+++ b/src/libs/QCBOR
@ -0,0 +1 @@
+Subproject commit 9e2f70804393823cc6d16f9f1035ef7223faca04
--- a/src/logging/NrfLogger.cpp
+++ b/src/logging/NrfLogger.cpp
@ -19,14 +19,13 @@ void NrfLogger::Init() {

 void NrfLogger::Process(void*) {
  NRF_LOG_INFO("Logger task started!");
-// Suppress endless loop diagnostic
+
 #pragma clang diagnostic push
 #pragma ide diagnostic ignored "EndlessLoop"
  while (true) {
    NRF_LOG_FLUSH();
    vTaskDelay(100); // Not good for power consumption, it will wake up every 100ms...
  }
-// Clear diagnostic suppression
 #pragma clang diagnostic pop
 }
				`@ -0,0 +1 @@`
				`Subproject commit 9e2f70804393823cc6d16f9f1035ef7223faca04`