4*4 Keypad matrix membrance type 16key
Original price was: ₹600.00.₹128.00Current price is: ₹128.00.
✅ Flexible & Ultra-Thin – Can be mounted on any flat surface
✅ 16-Key Layout – Allows numerical and functional input
✅ Low Power Consumption – Ideal for battery-powered projects
✅ Easy Interfacing – Works with Arduino, ESP32, Raspberry Pi, PIC, AVR, 8051, STM32
✅ Durable & Reliable – Waterproof, dustproof, and long-lasting
4×4 Keypad Matrix (Membrane Type) – 16-Key User Input Module
The 4×4 Matrix Keypad (Membrane Type) is a lightweight and flexible user interface module featuring 16 tactile keys arranged in a 4-row by 4-column matrix. It is widely used in Arduino, Raspberry Pi, embedded systems, and access control applications.
1. Specifications
- Type: Membrane, flexible, and ultra-thin
- Number of Keys: 16 (4×4 Matrix Layout)
- Operating Voltage: 3.3V – 5V
- Pin Configuration: 8 pins (4 rows + 4 columns)
- Key Symbols: 0-9, A-D, *, #
- Keypad Dimensions: ~70mm × 76mm
- Cable Length: ~85mm
- Connector Type: 8-pin Female FFC (Flexible Flat Cable)
- Material: Plastic with conductive film
- Adhesive Backing: Yes (for easy mounting)
2. Features
✅ Flexible & Ultra-Thin – Can be mounted on any flat surface
✅ 16-Key Layout – Allows numerical and functional input
✅ Low Power Consumption – Ideal for battery-powered projects
✅ Easy Interfacing – Works with Arduino, ESP32, Raspberry Pi, PIC, AVR, 8051, STM32
✅ Durable & Reliable – Waterproof, dustproof, and long-lasting
3. Applications
- Security & Access Control – Used in password-based door locks
- Embedded Systems & Microcontroller Projects – Custom input for various applications
- Industrial Automation – Control panels for machines
- Home Automation & IoT – Smart home keypads for control systems
- DIY Electronics & Robotics – User input for interactive projects
4. How to Interface with Arduino
The 4×4 keypad connects using 8 pins (4 rows + 4 columns). By scanning these pins, the Arduino can detect which button is pressed.
Wiring Table
| Keypad Pin | Arduino Pin |
|---|---|
| Row 1 (R1) | D9 |
| Row 2 (R2) | D8 |
| Row 3 (R3) | D7 |
| Row 4 (R4) | D6 |
| Column 1 (C1) | D5 |
| Column 2 (C2) | D4 |
| Column 3 (C3) | D3 |
| Column 4 (C4) | D2 |
Delivery & Return FAQs – RoboXCraft
1. What is the delivery time for orders?
We aim to deliver your orders within 3-4 business days across India. Delivery times may vary depending on your location.
2. How can I track my order?
Once your order is shipped, we’ll send you an email/SMS with the tracking number. You can track your shipment on our Order Tracking Page.
3. Do you offer international shipping?
Currently, we offer delivery within India only. We are working towards expanding to international markets soon!
4. What if I receive a damaged or incorrect product?
If you receive a damaged or incorrect product, please contact us within 7 days of receiving the order. We’ll initiate a return or exchange based on the situation.
5. What is your return policy?
We offer a 7-day return policy for all products. If you’re not satisfied with your purchase, you can return it within 7 days from the delivery date. The product should be unused and in its original packaging.
6. Who pays for the return shipping?
In the case of returns due to damage or wrong products, we will cover the return shipping cost. For other reasons, return shipping will be the customer’s responsibility.
7. Can I cancel my order after placing it?
You can cancel your order within 24 hours of placing it. After that, if the order has already been shipped, we won’t be able to process the cancellation.
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