thzinc

Flipper Zero

The Flipper Zero is an awesome electronic multi-tool that is fun to hack on and make things with.

(I was backer 28,621 on the Kickstarter campaign)

photo of assembled CO2 sensor module reading 802 ppm connected to the Flipper Zero

Updated Flipper Zero CO2 Monitor

Well, I finally got around to updating my CO2 Monitor to take advantage of the latest APIs in the Flipper Zero firmware. (It wasn’t quite as bad as I thought it would be 😅) Now it even has its own application icon!
Screenshot of the applications list with the CO2 Monitor application highlighted

Manually calibrating the Sensiron SCD30 CO2 gas concentration sensor

I picked up an Aranet4 Home CO2 sensor on a Black Friday sale and have finally had the chance to run a commercially-calibrated CO2 sensor against my DIY CO2 monitor on the Flipper Zero and found that my sensor needed some calibration.
Photo of my DIY CO2 sensor running of a Flipper Zero reading 765ppm and an Aranet4 sensor reading 613ppm

Prototyping a real CO2 monitor on the Flipper Zero

Updated January, 12, 2023
Screenshot of the applications list with the CO2 Monitor application highlightedphoto of Sensiron SCD30 sensor with a STEMMA QT / Qwiic cable connectedphoto of the a CO2 sensor affixed to a Flipper ProtoBoardscreenshot of section 3.3 of Sensiron's Design-in Guidelines

Prototyping a volatile organic compound (VOC) and CO2 monitor on the Flipper Zero

I’ve been playing with environment sensors for a while to help me understand how factors of air quality correlate to my health. In 2019, I had a particularly bad asthma attack that was exacerbated by wildfires in California. Since then, I’ve learned a lot about how 2.5 micron particulate matter…
screenshot of VOC monitor app showing good ventilationscreenshot of VOC monitor app showing moderate ventilationscreenshot of VOC monitor app showing poor ventilationphoto of Flipper with two sensors connected by a length of wire harness