samjunwei
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topouzid If you want to use a CR2032 and you don't want the battery to explode (it will last for some months anyway, but it will explode eventually), then you have to make a modification to the board. I believe that you have to cut the line between the diode and the 201 resistor, just like the one discussed here: https forum Arduino cc/index.php?topic=278270.0 This line you'll be cutting is the circuit that sends power to the battery in order to charge it.
2019-03-26 10:46:13 Helpful (0)