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InfiniTime/doc/SimpleWeatherService.md

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SimpleWeather service : new weather implementation This new implementation of the weather feature provides a new BLE API and a new weather service. The API uses a single characteristic that allows companion apps to write the weather conditions (current and forecast for the next 5 days). The SimpleWeather service exposes those data as std::optional fields. This new implementation replaces the previous WeahterService. The API is documented in docs/SimpleWeatherService.md.
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# Simple Weather Service
## Introduction
The Simple Weather Service provide a simple and straightforward API to specify the current weather and the forecast for the next 5 days. It effectively replaces the original Weather Service (from InfiniTime 1.8) since InfiniTime 1.14
## Service
The service UUID is `00050000-78fc-48fe-8e23-433b3a1942d0`.
## Characteristics
## Weather data (UUID 00050001-78fc-48fe-8e23-433b3a1942d0)
The host uses this characteristic to update the current weather information and the forecast for the next 5 days.
This characteristics accepts a byte array with the following 2-Bytes header:
- [0] Message Type :
- `0` : Current weather
- `1` : Forecast
- [1] Message Version : Version `0` is currently supported. Other versions might be added in future releases
### Current Weather
The byte array must contain the following data:
- [0] : Message type = `0`
- [1] : Message version = `0`
- [2][3][4][5][6][7][8][9] : Timestamp (64 bits UNIX timestamp, number of nanoseconds elapsed since 1 JAN 1970)
Simple Weather Service Store temperatures as int16_t (instead of uint8_t previously). The temperature is expressed in °C * 100.
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- [10, 11] : Current temperature (°C * 100)
- [12, 13] : Minimum temperature (°C * 100)
- [14, 15] : Maximum temperature (°C * 100)
- [16]..[47] : location (string, unused characters should be set to `0`)
- [48] : icon ID
SimpleWeather service : new weather implementation This new implementation of the weather feature provides a new BLE API and a new weather service. The API uses a single characteristic that allows companion apps to write the weather conditions (current and forecast for the next 5 days). The SimpleWeather service exposes those data as std::optional fields. This new implementation replaces the previous WeahterService. The API is documented in docs/SimpleWeatherService.md.
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- 0 = Sun, clear sky
- 1 = Few clouds
- 2 = Clouds
- 3 = Heavy clouds
- 4 = Clouds & rain
- 5 = Rain
- 6 = Thunderstorm
Simple Weather Service - code cleaning and improvements Add missing icons (heavy clouds, thunderstorm, snow). Remove unneeded comparison operator (!=), improve conversion of Timestamp and MessageType, order includes. Fix typo in documentation. Remove not related change in StopWatch.
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- 7 = Snow
- 8 = Mist, smog
SimpleWeather service : new weather implementation This new implementation of the weather feature provides a new BLE API and a new weather service. The API uses a single characteristic that allows companion apps to write the weather conditions (current and forecast for the next 5 days). The SimpleWeather service exposes those data as std::optional fields. This new implementation replaces the previous WeahterService. The API is documented in docs/SimpleWeatherService.md.
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### Forecast
The byte array must contain the following data:
- [0] : Message type = `0`
Simple Weather Service Store temperatures as int16_t (instead of uint8_t previously). The temperature is expressed in °C * 100.
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- [1] : Message version = `0`
SimpleWeather service : new weather implementation This new implementation of the weather feature provides a new BLE API and a new weather service. The API uses a single characteristic that allows companion apps to write the weather conditions (current and forecast for the next 5 days). The SimpleWeather service exposes those data as std::optional fields. This new implementation replaces the previous WeahterService. The API is documented in docs/SimpleWeatherService.md.
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- [2][3][4][5][6][7][8][9] : Timestamp (64 bits UNIX timestamp, number of nanoseconds elapsed since 1 JAN 1970)
- [10] Number of days (Max 5, fields for unused days should be set to `0`)
Simple Weather Service Store temperatures as int16_t (instead of uint8_t previously). The temperature is expressed in °C * 100.
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- [11,12] Day 0 Minimum temperature (°C * 100)
- [13,14] Day 0 Maximum temperature (°C * 100)
- [15] Day 0 Icon ID
- [16,17] Day 1 Minimum temperature (°C * 100)
- [18,19] Day 1 Maximum temperature (°C * 100)
- [20] Day 1 Icon ID
- [21,22] Day 2 Minimum temperature (°C * 100)
- [23,24] Day 2 Maximum temperature (°C * 100)
- [25] Day 2 Icon ID
- [26,27] Day 3 Minimum temperature (°C * 100)
- [28,29] Day 3 Maximum temperature (°C * 100)
- [30] Day 3 Icon ID
- [31,32] Day 4 Minimum temperature (°C * 100)
- [33,34] Day 4 Maximum temperature (°C * 100)
- [35] Day 4 Icon ID
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