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4x4 Membrane Keypad
Add reliable user input to your microcontroller projects with this 4x4 membrane keypad. Featuring 16 tactile keys arranged in a compact matrix layout, this ultra-thin, self-adhesive keypad is ideal for password entry systems, menu navigation, calculators, and access control panels. Available at The Engineer Store, Bengaluru - fast shipping, 7-day warranty on manufacturing defects, and dedicated support.
Specifications
| Type | 4x4 Matrix Membrane Keypad (16 Keys) |
| Key Labels | 0-9, A-D, *, # |
| Interface | 8-Pin Header (4 Rows + 4 Columns) |
| Operating Voltage | 3.3V - 5V DC |
| Max Contact Rating | 35V DC, 100mA |
| Contact Resistance | < 200Ohm |
| Insulation Resistance | > 100MOhm (at 100V DC) |
| Contact Bounce | < 5ms |
| Lifespan | 1 Million+ presses per key |
| Operating Temperature | -20 degreesC to +50 degreesC |
| Dimensions | Approx. 69mm x 77mm x 0.8mm |
| Cable Length | Approx. 85mm with female pin header |
| Mounting | Self-adhesive backing |
| Compatibility | Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, and more |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose This 4x4 Membrane Keypad?
- 16-Key Matrix Layout: Full alphanumeric input with digits 0-9 plus A, B, C, D, *, and # for versatile data entry.
- Ultra-Thin & Flexible: Less than 1mm thick membrane construction fits flush against enclosures and panels without adding bulk.
- Easy Matrix Scanning: Simple 8-pin row-column interface works seamlessly with Arduino's Keypad library - no complex wiring required.
- Self-Adhesive Mounting: Peel-and-stick backing allows quick, tool-free installation on any flat surface or project enclosure.
- Durable Construction: Rated for over 1 million key presses with reliable tactile feedback and low contact bounce.
- Universal Compatibility: Works with 3.3V and 5V logic - compatible with Arduino Uno, Mega, Nano, ESP32, ESP8266, Raspberry Pi Pico, STM32, and virtually any microcontroller.
- Female Pin Header Connector: Plugs directly into breadboards or male header pins for fast prototyping without soldering.
- 100% Authentic: Sourced directly from trusted, authorized suppliers with quality verification.
- Fast Shipping: 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery available in Bengaluru.
- Expert Support: Full technical assistance included via email and WhatsApp around the clock.
Project Ideas
- Door Lock / Access Control System: Build a password-protected electronic lock using the keypad with an Arduino and solenoid or servo motor for secure entry.
- Arduino Calculator: Create a fully functional calculator by pairing the 4x4 keypad with a 16x2 LCD display for real-time computation and display.
- Home Security Alarm Panel: Design an alarm system where users arm/disarm the security setup by entering a PIN code on the membrane keypad.
- Menu Navigation Interface: Use the A-D keys for menu control and 0-9 for parameter input on LCD/OLED-based embedded systems and industrial HMIs.
- DTMF Tone Generator: Generate dual-tone multi-frequency signals for telephony or remote control applications using the standard telephone-style key layout.
- Vending Machine Controller: Implement product selection and quantity input for DIY vending or dispensing machines.
- Student Learning & Lab Projects: Perfect for engineering coursework covering matrix scanning, GPIO multiplexing, interrupt-driven input, and embedded C programming.
- IoT Device Configuration: Allow local parameter entry (Wi-Fi credentials, thresholds, device IDs) on ESP32/ESP8266-based IoT nodes without needing a smartphone app.
How to Connect (Arduino Example)
| Keypad Pin 1 (Row 1) | Arduino Digital Pin 9 |
| Keypad Pin 2 (Row 2) | Arduino Digital Pin 8 |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 4x4 membrane keypad Online in India
Purchase the 4x4 membrane keypad online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 4x4 membrane keypad with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 4x4 membrane keypad at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.
```html
4x4 Membrane Keypad
Add reliable user input to your microcontroller projects with this 4x4 membrane keypad. Featuring 16 tactile keys arranged in a compact matrix layout, this ultra-thin, self-adhesive keypad is ideal for password entry systems, menu navigation, calculators, and access control panels. Available at The Engineer Store, Bengaluru - fast shipping, 7-day warranty on manufacturing defects, and dedicated support.
Specifications
| Type | 4x4 Matrix Membrane Keypad (16 Keys) |
| Key Labels | 0-9, A-D, *, # |
| Interface | 8-Pin Header (4 Rows + 4 Columns) |
| Operating Voltage | 3.3V - 5V DC |
| Max Contact Rating | 35V DC, 100mA |
| Contact Resistance | < 200Ohm |
| Insulation Resistance | > 100MOhm (at 100V DC) |
| Contact Bounce | < 5ms |
| Lifespan | 1 Million+ presses per key |
| Operating Temperature | -20 degreesC to +50 degreesC |
| Dimensions | Approx. 69mm x 77mm x 0.8mm |
| Cable Length | Approx. 85mm with female pin header |
| Mounting | Self-adhesive backing |
| Compatibility | Arduino, ESP32, ESP8266, Raspberry Pi, STM32, PIC, and more |
| Origin | Original / Authentic |
| Warranty | 7-day warranty on manufacturing defects |
| Support | Email & WhatsApp 24/7 |
Why Choose This 4x4 Membrane Keypad?
- 16-Key Matrix Layout: Full alphanumeric input with digits 0-9 plus A, B, C, D, *, and # for versatile data entry.
- Ultra-Thin & Flexible: Less than 1mm thick membrane construction fits flush against enclosures and panels without adding bulk.
- Easy Matrix Scanning: Simple 8-pin row-column interface works seamlessly with Arduino's Keypad library - no complex wiring required.
- Self-Adhesive Mounting: Peel-and-stick backing allows quick, tool-free installation on any flat surface or project enclosure.
- Durable Construction: Rated for over 1 million key presses with reliable tactile feedback and low contact bounce.
- Universal Compatibility: Works with 3.3V and 5V logic - compatible with Arduino Uno, Mega, Nano, ESP32, ESP8266, Raspberry Pi Pico, STM32, and virtually any microcontroller.
- Female Pin Header Connector: Plugs directly into breadboards or male header pins for fast prototyping without soldering.
- 100% Authentic: Sourced directly from trusted, authorized suppliers with quality verification.
- Fast Shipping: 1-5 day shipping, 7-8 day delivery across India from our Bengaluru warehouse; same-day delivery available in Bengaluru.
- Expert Support: Full technical assistance included via email and WhatsApp around the clock.
Project Ideas
- Door Lock / Access Control System: Build a password-protected electronic lock using the keypad with an Arduino and solenoid or servo motor for secure entry.
- Arduino Calculator: Create a fully functional calculator by pairing the 4x4 keypad with a 16x2 LCD display for real-time computation and display.
- Home Security Alarm Panel: Design an alarm system where users arm/disarm the security setup by entering a PIN code on the membrane keypad.
- Menu Navigation Interface: Use the A-D keys for menu control and 0-9 for parameter input on LCD/OLED-based embedded systems and industrial HMIs.
- DTMF Tone Generator: Generate dual-tone multi-frequency signals for telephony or remote control applications using the standard telephone-style key layout.
- Vending Machine Controller: Implement product selection and quantity input for DIY vending or dispensing machines.
- Student Learning & Lab Projects: Perfect for engineering coursework covering matrix scanning, GPIO multiplexing, interrupt-driven input, and embedded C programming.
- IoT Device Configuration: Allow local parameter entry (Wi-Fi credentials, thresholds, device IDs) on ESP32/ESP8266-based IoT nodes without needing a smartphone app.
How to Connect (Arduino Example)
| Keypad Pin 1 (Row 1) | Arduino Digital Pin 9 |
| Keypad Pin 2 (Row 2) | Arduino Digital Pin 8 |
Frequently Asked Questions
When will I receive my order?
Products ship within 1-5 days from our Bengaluru warehouse. Delivery within 7-8 days to most locations across India.
Is technical support available?
Yes, 24/7 support via email and WhatsApp for setup, troubleshooting, and application guidance.
What is your return policy?
7-day returns on manufacturing defects only. Full refund or replacement. Not applicable for user damage or misuse.
Are bulk discounts available?
Yes, wholesale pricing on orders of 10+ units. Contact us via WhatsApp or email for a custom quote.
Buy 4x4 membrane keypad Online in India
Purchase the 4x4 membrane keypad online at The Engineer Store - India's most trusted electronics components store. We deliver across all major cities including Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 4x4 membrane keypad with fast 1-5 day shipping from our Bengaluru warehouse. All products are 100% authentic, sourced from authorized distributors with 7-day warranty on manufacturing defects.
Looking to buy 4x4 membrane keypad at the best price in India? The Engineer Store offers competitive pricing, bulk discounts for orders of 10+ units, and dedicated technical support via email and WhatsApp. Whether you are a hobbyist, student, or professional engineer, we have everything you need for your electronics projects.