This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything.Tested in:Arduino NANO, UNO, Mega, Due,  GalileoRaspberry PiLaunch PadProduct Description:Application: Data or programmed inputPad 

This keypad has 12 buttons, arranged in a telephone-line 3x4 grid. It's made of a thin, flexible membrane material with an adhesive backing (just remove the paper) so you can attach it to nearly anything.


Application: Data or programmed input
Pad Size: 77mmx69mmx0.8mm
Transparency cable length: 87mm
Weight: 7g
Connector: 7 pins 0.1 pitch
Maximum Circuit Rating: 35VDC, 100mA, 1W
Insulation Resistance: 100M Omh, 100V
Dielectric Withstand: 250VRms (50-60Hz, 1min)
Contact Bounce: Operation Temperature: -25 to 70 centigrade