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Arduino Uno R3 Battery Tester
I would put a high value (around 100k) resistor between A0 and GND to avoid floating values when the battery is not connected (analog input is very sensible). You can add some "if's" to this sketch to check Li-Ion batteries. Nice projects, thanks for sharing.
Is there soldering required?
Is it possible to repeat the code over and over until the red LED comes up? Also, would it be possible to attach some device to the same battery that is being tested? Please answer fast! -J
I am new to Arduino and i bought a kit containing useful items related to the Arduino. Things such as resistors, a button, LED lights, etc. So far I only have 330 Ohm resistors and 10K Ohm resistors. Do you know if this project would still work by using 330 Ohm instead of 560 Ohm and 10K Ohm instead of 2.2K Ohm?
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