Connecting a 4 x 4 Membrane Keypad to an Arduino
There are a lot of instructions and example of how to connect 4 x 3 membrane keypad but I couldn't find instructions on how to connect a 4 x 4 Membrane Keypad to an Arduino. Install Keypad Library This library is now available via the Arduino IDE library manager. If you are using a modern IDE (1....
By: bborncr
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By: bborncr
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[original story: Instructables]