8 commits

Author	SHA1	Message	Date
rbaron	8fd4d7222a	Implements BLE protocol v2 ... The only change from v1 is how the temperature is encoded. In v2, two bytes at offset 4 and 5 represent a 16-bit signed int (in big-endian). It contains the temperature in degrees Celsius * 100. Fixes #29	2022-03-14 18:23:49 +01:00
rbaron	d2daefaf46	Updates ambient brightness estimation code ... Also renames the `lux` field from `photo_read_t` to the more generic `brightness`.	2021-09-22 22:38:30 +02:00
rbaron	e32803d44d	Improvements to photo resistor-based lux estimation ... - Code now compiles - Estimation of the photo resistor resistance works - Lux estimation from the photo resistor resistance needs more work and calibration - Lux is now encoded in the BLE advertisement payload	2021-09-22 22:38:30 +02:00
rbaron	e54449bf84	Adds make lint and make lint-fix	2021-04-10 18:19:37 +02:00
rbaron	3c7180fefa	Adds run_counter to ble advertising packet	2021-03-28 10:44:33 +02:00
rbaron	c2e3723eb0	Adds temp and humidity values to the BLE advertisement packet	2021-03-26 10:49:28 +01:00
rbaron	25772def7e	ADC works for measuring the battery voltage	2021-03-17 19:08:17 +01:00
rbaron	20243a26a2	Extracted BLE to src/prst/ble.{c,h}	2021-03-14 11:06:45 +01:00