Quote:
Originally Posted by alvin_wj
At last, my Nano are arrived and just found out that my zener diode stock is run out. Must have 1-2 days more for the zener to arrive lol.
Many thanks for the reply i hope this build not gonna be as hard as the first one 
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Good luck -- it can definitely be a pain. I'd use some type of prototyping board to limit damage to the nano board when perfecting your circuit, something like
this:
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or
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