Keypad 4×4 Self-Adhesive 16 key

The Keypad 4×4 Self-Adhesive 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: *and #. 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 #.

Specifications:

• Number of keys: 16 Key
• Layout: 4 Row x 4 Columns
• Operating voltage: 3-5VDC
• Operating Current: 100mA
• Contact Resistance: ≤ 500Ω
• Insulation resistance: ≥ 100MΩ
• Dielectric Strength: 250Vrms
• Connector Type: Female Header
• Number Of Pin Connector: 8 Pins
• Pitch Of Pin Connector: 2.54mm
• Flat Cable Length: 70mm
• Dimensions: 76mm x 69mm
• Material: Flexible membrane with Self-Adhesive backing
• Operating Temperature Range: -40 ℃ to 85 ℃
• Humidity: 40% to 80% RH (non-condensing)
• Key life: > 1 million presses

How to connect the keyboard:

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

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.

Package Contents:

• 1 X  Keypad 4×4 Self-Adhesive 16 key