Matrix Membrane Keypad 16 Key (4×4)

0.73

415 in stock

SKU: 10395 Category:

Description

Matrix Membrane Keypad 16 Key (4×4)

Product Overview

16-button membrane keyboard with interface component for microcontroller projects.

Convenient adhesive backing provides a simple way to mount the keypad in a variety of applications.

Application Ideas:

  • security systems;
  • menu selection;
  • data entry for embedded systems.

How it Works

Matrix keypads use a combination of four rows and four columns to provide button states to the host device, typically a microcontroller. Underneath each key is a pushbutton, with one end connected to one row, and the other end connected to one column. These connections are shown here:

0G-00004900==KeypadMembrane4x4

In order for the microcontroller to determine which button is pressed, it first needs to pull each of the four column s (pins 1-4 ) either low or high one at a time , and then poll the states of the four rows (pins 5-8). Depending on the states of the columns, the microcontroller can tell which button is pressed.

Documents

Documents (Instruction manuals, schematics, etc), links:

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Additional information

Weight 10.0 g
Dimensions 10.0 × 15.0 × 2.0 cm
Brand Name

RobotDyn

Condition

New

Operating Temperature

Standard

Type

Drive IC

Supply Voltage

Standard

is_customized

Yes

Package

SMD

Dissipation Power

Standard

Model Number

Matrix Membrane Keypad 16 Key (4×4)

Application

Computer

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