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General project discussion / help
Did you make a robotic coffee pot which implements HTCPCP and decafs unauthorized users? Show it off here!
By lucidnightmare
#196870
Hello all! :) I am trying to figure out how to power one of these by a few CR2032 button cell batteries instead of 3 AAA batteries.

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By jremington
#196874
The circuit probably requires 4.5V and CR2032 cells deliver 3.0V. Much easier just to use the cheap AAA cells.