Keypad 4*4

$3
Price $3
Category Sensors, Switches
Availability In stock
Delivery Shipped across Lebanon, or collect from the lab

A flat membrane keypad with sixteen keys - 0-9, A-D, star and hash - wired as a 4x4 matrix, so the whole thing needs only eight pins. Scan the four rows, read the four columns, and the Arduino Keypad library does the rest: PIN entry, menu navigation or plain number input. It is under a millimetre thick with an adhesive back, so it sticks straight onto a panel or an enclosure lid, and the ribbon tail ends in an 8-pin header that drops into a breadboard.

Key features

  • 16 keys: 0-9, A-D, star and hash
  • 4x4 matrix - only 8 pins needed
  • Ribbon tail ending in an 8-pin 2.54 mm header
  • Ultra-thin with an adhesive backing
  • Contacts rated 24V at 30 mA
  • Works with the standard Arduino Keypad library

Details

Specifications

Layout 4x4 matrix, 16 keys
Connection 8 pins (4 rows + 4 columns)
Contact rating 24V, 30 mA max
Operating temperature 0C to +50C
Type Membrane, adhesive backed
Connector Ribbon tail with 8-pin 2.54 mm header