This is a simple Battery AA tester based on Arduino.
To work it needs to connect arduino to power. Then insert a battery and results is in LEDs - red, yellow and green.
The idea is from:
https://www.instructables.com/Arduino-Battery-Tester/
I just created a box. The battery holder is borrowed from another Thingiverse but I cannot find it now.
You just need to print, connect Arduino with resistors and LEDs, connect wires to battery holder and thats it.
arduino_code.txt | 714.0B | |
Battery_Tester_1.2.stl | 229.9KB |