4×4 Self-adhesive Membrane Keypad 16 key

4×4 Self-adhesive Membrane Keypad 16 key is Diaphragm keypad equipped with 16 key in 4 x 4 arrangement. It has numbers: from 0 to 9, letters: A, B, C, D and special characters: * i #. On the back of the keyboard there is a self-adhesive tape for easy installation. The keyboard is equipped with 8-pin tape with a 2.54 mm grid, so it can be connected to the main module, such as Arduino or STM32 using connection cables or through a gold pin strip. The keyboard can be used as a data input device.

Features:

• 16 Keys (4×4 Matrix) Provides a total of 16 buttons arranged in a 4-row by 4-column grid.
• Self-Adhesive Backing  Peel-and-stick design for easy mounting on surfaces.
• Flexible and Thin Design  Ideal for compact electronics applications.
• Durable and Water-Resistant Protects against dust, dirt, and moisture.
• Easy Interface with Microcontrollers Compatible with Arduino, Raspberry Pi, PIC, AVR, and other microcontrollers.
• Long Lifespan rated for more than 1 million key presses.
• Simple 8-Wire Connection Requires only 8 I/O pins for scanning.
• Pre-labeled Buttons Includes numbers (0-9), letters (A-D), *, and #.

Membrane keyboard with 16 keys.

How to connect the keyboard:

The keyboard can be connected in two ways. The layout of the outputs is shown in the figure below.

The layout of the outputs and how to connect the keyboard.

Diaphragm keypad specifications:

• Maximum Rating: 24 VDC, 30mA
• Number of buttons: 16
• Dimensions: 77 x 70 x 0.8 mm
• Belt length with connector: 83 mm
• Type of connector: 1 x 8 pin – female raster 2.54 (gold pin connector)

Applications:

• Microcontroller and Embedded Systems.
• Security and Access Control Systems.
• Home Automation.
• Industrial Applications.
• Communication and Telephony Devices.
• Consumer Electronics.
• Gaming and Simulations.
• Medical and Laboratory Equipment.
• Educational and Learning Kits.
• Menu-Based Systems.