Membrane 4X4 Matrix Keypad + Extras 1 Channel Max current: 180mA (all LEDs

Max current: 180mA (all LEDs on)

You will find this sensor very easy to set up and use for your next range-finding project

and over-current protection

NOTE: Slider can be moved only after the locking screw is loosened

3 Cell/4 Cell PC PIN Specification

Membrane 4X4 Matrix Keypad + Extras 1 Channel Max current: 180mA (all LEDsThis Matrix Keypad 4 X 4 has 16 buttons, arranged in a telephone line 3x4 grid with a column of 4 characters (A, B, C, and D). The keys are connected into a matrix, hence only 8 microcontroller pins (4 columns and 4 rows) are required to scan the pad. 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. The keys are connected into a matrix, so you only need 8