Embbedded part of Air Quality Sensors module for my GUI application CustomKeyboard. This project also contains a simple gateway which transmits key-presses from a keyboard attached to nucleo over UART. This was needed because I wasn't able to bypass keypresses from second keyboard connected to computer (both with Windows and Linux) and just execute the required macros for given keys.
https://github.com/kurta999/CustomKeyboard
Source is made for STM32 NUCLEO L496ZG. The source is not in compilable form yet, because the ESP32 WiFi driver isn't included.
BME680 - Pressure, Temperature, Relative Humidity
SCD30 - CO2 (Pressure and Humidity part is not used, based on my experience, it's deviates too much even when the correct offset is applicede)
VEML6070 - UV Index
TCS34725 - RGB Color values in light, CCT and Kelvin
Honeywell HPMA115S0 - Particle Sensor (pm2.5, pm10)
The source code for sensors can be found in freertos.c and in sensors.c. The code is bloat, because this is just a protoype. I didn't have time yet to clean up everything, it just works.
Pinout can be found in UsbHost.ioc, you have to open the project in STM32CubeIde or the .ioc file in STM32CubeMX.
Sensors
Numpad for macros (beside a Corsair K95 18 GKey keyboard)
