kelvys shares:
Macro keypad powered by an Arduino (Mega324U based), and RobotDyn 3×4 button keypad.
The pins of RobotDyn keypad are reversed to the bottom of the module.
The board that holds the arduino are separated from the Robotdyn module by 4 M3 10mm female to female brass standoffs, but any kind of standoff with similar dimensions can be used.
The source code and schematics can be found here: HotKeypad
The use of above mentioned program (source code) it`s optional, you can program your own Arduino code for that.
download the files on: https://www.thingiverse.com/thing:5168905
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