LED
LCD
4×4 Flat Membrane Matrix Keypad 16-Key Module | Pro Tronix
Original price was: 50.00 EGP.40.00 EGPCurrent price is: 40.00 EGP.
Ultra-slim, self-adhesive 4×4 flat membrane matrix keypad. Features a dust-proof 16-key layout over a flexible 8-pin interface, providing a durable and compact user input solution for smart lock and embedded automation projects.
| Weight | 0.00 kg |
|---|
In stock
Product Description
An ultra-thin, flat membrane matrix keypad module featuring a 16-key layout, ideal for sleek user interfaces and numeric input in Arduino and ESP32 projects. This flexible, low-profile keypad utilizes a sub-millimeter adhesive backing that allows it to be mounted flush against any flat enclosure or control panel surface. By arranging its 16 tactile contact switches in an efficient 4×4 matrix, it maps a full alphanumeric input array down to just 8 digital microcontroller pins. Designed with water-resistant membrane overlays and a bounce-resistant matrix layer, it offers an incredibly durable, dust-proof, and space-saving human-machine interface (HMI) for compact electronic systems and security enclosures.
Pinout / Layout Connections
The module breaks out its internal switch grid via a flat, flexible 8-pin female DuPont ribbon connector:
-
Pins 1 to 4 (Rows R1, R2, R3, R4): Connect to four digital I/O microcontroller pins to scan the horizontal matrix lines.
-
Pins 5 to 8 (Columns C1, C2, C3, C4): Connect to four digital I/O microcontroller pins to scan the vertical matrix lines.
Applications
-
Flush-Mount Security Panels: Perfect for building flat, weather-resistant digital combinations for outdoor keyless entries and smart lockers.
-
Compact Instrument Enclosures: Excellent for integrating clean, dust-resistant menu control pads onto handheld testing devices or portable diagnostic units.
-
Industrial Control Interfaces: Ideal for sleek user-input terminals on automated machines requiring easily cleanable, flat command surfaces.
Compatibility
The 4×4 Flat Membrane Keypad utilizes purely passive mechanical contacts, making it universally compatible with any development platform supporting digital logic:
-
Arduino Board Series (Uno, Mega, Nano, Pro Micro) utilizing the standard Matrix Keypad library.
-
ESP32 and ESP8266 boards (Fully compatible with both 3.3V and 5V digital input pins).
-
Raspberry Pi and Raspberry Pi Pico boards.
-
Standard Industrial PLCs and MCUs (STM32, PIC, AVR).
Technical Specifications
| Parameter | Value / Specification |
| Product Type | Ultra-Thin Flat Membrane Matrix Keypad |
| Total Keys | 16 Buttons (0-9, A-D, *, #) |
| Interface Type | 8-Pin Flex Ribbon Header (4 Rows x 4 Columns) |
| Max Operating Voltage | DC 35 V |
| Max Operating Current | 100 mA |
| Dielectric Strength | 250 Vrms (50-60Hz, 1 min) |
| Contact Bounce Time | $\le 5\text{ ms}$ |
| Operating Life | Greater than 1 million closures per key |
| Operating Temperature Range | -20 °C to +75 °C |
What’s in the Box
-
1 x 4×4 Flat Membrane 16-Key Matrix Keypad with integrated flexible ribbon cable and self-adhesive backing.
Available now from Pro Tronix with guaranteed quality and fast delivery nationwide.
Shipping & Delivery Policy
At Protronix, we ensure your orders are delivered safely and efficiently through multiple reliable channels tailored to your needs.
Our Delivery Methods
-
Egypt Post: Standard shipping to all governorates across Egypt via the National Postal Authority.
-
Uber Scooter: Fast, same-day express delivery for local orders within supported urban areas.
-
Store Pickup: You can skip the shipping fees by collecting your order directly from our main branch.
Reviews
There are no reviews yet.