SWAT-engineering / kiwi-air-monitor

Kiwi monitor is an open source CO2/Humidity/Temperature sensor intended for monitoring the quality of the air in a room. Kiwi was created to support teachers with a notification to ventilate their classroom.
https://www.kiwimonitor.nl/
GNU General Public License v3.0
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Add optional measurment of voltage, to detect runnin out of battery. #19

Open DavyLandman opened 4 years ago

DavyLandman commented 4 years ago

Need to read a bit more, but this video shows a simple resistor to the analog pin, to later read the voltage levels. If they start dropping: you know the battery is decreasing...

https://www.youtube.com/watch?v=rfPwOtoGO4E