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