Hobbyists, electronic enthusiasts, and makers may be excited to learn that Adafruit has announced the arrival of the NeoTrellis RGB driver PCB for 4×4 keypad. This new release is an upgrade from the ...
[Sam Horne] adapted an old school landline phone to deliver clues to birthday party guests. When guests find a numerical clue, they type it into the keypad to hear the next clue, which involves ...