4X3 MEMBRANE MATRIX KEYPAD MODULE

The Keypad 4×3 features a total of 12 buttons in Matrix form. Consider 4 rows as input and 3 columns as output. Each switch is connected from one side to a row and from the other side to a column. For example, if we press switch number 1, the input of this row is saved at the output of its column. The image below shows the internal circuit of this keyboard.

• • Easy communication with any microcontroller
  • 12 Button Matrix   0-9 # *
  • Made by high quality plastic and metal material which is very durable and reliable.
  • A wide range of applications: This module can be applied to Arduino Robot, Household Power Systems, raspberry pie and DIY Servo Shield Module etc.

Electrical Characteristics:

• • Contact Current and Voltage : 20mA, 24V DC
  • Max. Contact Resistance : 200Ω
  • Life : 1,000,000 cycles per key
  • Operating Temp. : -20°C to +60°C
  • Storage Temp. : -40°C to +65°C
  • Colour : Black
  • Material : Plastic
  • Keypad Array : 3 × 4
  • Keypad Output : Matrix
  • Panel Cutout Width : 56.2mm
  • Panel Cutout Height : 72mm
  • No. of Keys : 12
  • External Length / Height : 10mm
  • Fixing Centres L × W : 51.2mm × 33.5mm
  • IP Rating : IP67
  • Operating Force : 1.18N
  • Travel : 2mm

Package Includes :

• • 1 X 4×3 12-key Keyboard / Keypad Telephone Style