Product Overview
This is a new 4x3 matrix twelve key membrane switch keypad that is easy to use and will look nice in your project. It's very useful if you need it for prototyping with a breadboard or just need a keypad for your project.
Specification
- Pad Size : 68.9 x 76 x 0.8mm
- Cable Length : 3-1/3" or 85mm (include connector)
- Connector : Dupont 7 pins, 0.1" (2.54mm) Pitch
- Mount Style : Self-Adherence
- Max Circuit Rating : 35VDC, 100mA
- Insulation Spec. :100 MOhm, 100V
- Dielectric Withstand : 250VRms (60Hz, 1min)
- Contact Bounce : <=5ms
- Life Expectancy : 1 million closures
- Operation Temperature : -20 to +40 °C
Here is a TUTORIAL how to use this keypad with an Arduino. https://lastminuteengineers.com/arduino-keypad-tutorial/
From right to left having numbered keypad in front of you:
- pins 1,2 and 3 are columns
- pins 4,5,6 and 7 are rows