Maker Michael Bais has developed an add-on to measure UV radiation for the Flipper Zero microcontroller, and detailed the project in a Hackaday blog post at the end of last week.
Bais used an AS7331 sensor to measure three types of UV radiation – UV-A, UV-B and UV-C – which the Flipper Zero reads via I2C.
One of the key challenges Bais faced was writing his own library to retrieve the readings from the AS7331 due to the complexity of the chip.
The resulting UV meter app displays the three types of UV radiation on the Flipper Zero’s screen, and Bais has also made available the design files for a PCB that can be plugged into the microcontroller.
