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movement: add time zone conversion in sunrise/sunset face

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This commit is contained in:
Joey Castillo
2022-01-21 00:11:28 -05:00
parent 3efdcd78a1
commit 68f17c8970
4 changed files with 25 additions and 5 deletions
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5
watch-library/watch/watch_utility.c
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@@ -146,6 +146,11 @@ watch_date_time watch_utility_date_time_from_unix_time(uint32_t timestamp, uint3
return retval;
}
watch_date_time watch_utility_date_time_convert_zone(watch_date_time date_time, uint32_t origin_utc_offset, uint32_t destination_utc_offset) {
uint32_t timestamp = watch_utility_date_time_to_unix_time(date_time, origin_utc_offset);
return watch_utility_date_time_from_unix_time(timestamp, destination_utc_offset);
}
float watch_utility_thermistor_temperature(uint16_t value, bool highside, float b_coefficient, float nominal_temperature, float nominal_resistance, float series_resistance) {
float reading = (float)value;

11
watch-library/watch/watch_utility.h
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@@ -70,6 +70,17 @@ uint32_t watch_utility_date_time_to_unix_time(watch_date_time date_time, uint32_
*/
watch_date_time watch_utility_date_time_from_unix_time(uint32_t timestamp, uint32_t utc_offset);
/** @brief Converts a time from a given time zone to another time zone.
* @param date_time The watch_date_time that you wish to convert
* @param origin_utc_offset The number of seconds from UTC in the origin time zone
* @param destination_utc_offset The number of seconds from UTC in the destination time zone
* @return A watch_date_time for the given UNIX timestamp and UTC offset, or if outside the range that
* watch_date_time can represent, a watch_date_time with all fields set to 0.
* @note Adapted from MIT-licensed code from musl, Copyright © 2005-2014 Rich Felker, et al.:
* https://github.com/esmil/musl/blob/1cc81f5cb0df2b66a795ff0c26d7bbc4d16e13c6/src/time/__secs_to_tm.c
*/
watch_date_time watch_utility_date_time_convert_zone(watch_date_time date_time, uint32_t origin_utc_offset, uint32_t destination_utc_offset);
/** @brief Returns a temperature in degrees Celsius for a given thermistor voltage divider circuit.
* @param value The raw analog reading from the thermistor pin (0-65535)
* @param highside True if the thermistor is connected to VCC and the series resistor is connected