We all know UV radiation for its contributions to getting sunburned after a long day outside, but were you aware there are several types different types of UV rays at play? [Michael] has come up with a Flipper Zero add on board and app to measure these three types of radiation, and explained some of the nuances he learned about measuring UV along the way.
At the heart of this project is an AS7331 sensor, it can measure the UV-A, UV-B, and UV-C radiation values that the Flipper Zero reads via I2C. While first using this chip he realized to read these values is more complex than just querying the right register, and by the end of this project he’d written his own AS7331 library to help retrieve these values. There was also a some experimenting with different GUI designs for the app, the Flipper Zero screen is only 128x64px and he had a lot of data to display. One feature we really enjoyed was the addition of the wiring guide to the app, if you install this Flipper Zero app and have just the AS7331 sensor on hand you’ll know how to hook it up. However if you want he also has provided the design files for a PCB that just plugs into the top of the Flipper Zero.
Head over to his site to check out all the details of this Flipper Zero project, and to learn more about the different types of UV radiation. Also be sure to let us know about any of your Flipper Zero projects.
These flipper zeros are so cute. I wish I could justify the cost, I’d have all sorts of add ons and whatever else. Can anyone chime in and either convince me to get one or inform me that making standalone tools with commodity MCU’s is good enough?
It’s a pretty good garage door opener.
explore the m5stack – @$30 usd it can do a ton of this stuff too.
Well I have one and can’t find a use for it. Most things I realize stand alone with ESP32, RP2040 or ATtiny. Better spend the money for something else.
I enjoy mine but its definitely a tool looking for a use. I’ve used it to emulate NFC’s and my TV remotes, but nothing I couldn’t have done with things I already have.
Flipper Zero is kind of like a programmable scientific graphic calculator. I don’t want one as much as I want a reason to want one.