5x5 Calculator Keyboard
you will need:
25 19x19mm white keycaps
25 gateron blue cherry mx switches
25 vinyl keyboard stickers
5x5 keyboard base
arduino mega
Assemble the Keyboard
click each switch into the plate and fit the keycaps onto the switches
Soder the Pins
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1 wire to every button with a ground wire across each row.
Stick the Stickers on the Keyboard
Upload the Code to the Arduino
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upload the attached code file to the Arduino.
Downloads
Wire the Keyboard to the Arduino
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plug the ground wires to ground, and each other wire in order from 22 to 46