3x4 Phone-style Matrix Keypad Category_Display & LED/LED Strips Kendryte K210

Kendryte K210

and it is ready to walk

All you need to get the coin acceptor working is a pocket full of change

Power the whole thing with 5VDC and you're ready to rock

3x4 Phone-style Matrix Keypad Category_Display & LED/LED Strips Kendryte K210Hey, Jenny, I've got your number! And I'm going to dial 867 5309 into this very nice phone style matrix keypad. This keypad has 12 buttons, arranged in a telephone line 3x4 grid. It's made of plastic with sturdy plastic buttons. The keys are connected to a matrix so you only need 7 microcontroller pins (3 columns and 4 rows) to scan through the pad. It's basically a sturdier version of our Membrane 3x4 Matrix Keypad and comes with 7 or 8 header pins