Review on 📱 Revolutionize Your Projects with Tegg Tactile Phone Style Arduino Raspberry by Cody Wuol

It took me a while to figure out the wiring but here is the pinout. Skip the first hole, then col2, row1, col1, row4, col3, row3, row2, skip the last hole. I connected them to Arduino pins like this: C2 = D7R1 = D12C1 = D11R4 = D10C3 = D9R3 = D6R2 = D5 I used the code shown below: byte rowPins[ROWS] = {12, 5, 6, 10}; // connect to keyboard byte string pins colPins[COLS] = {11, 7, 9}; // Make connection to keyboard column pinout. Works fine but doesn't solder well as others have said.