4×4 Matrix Membrane Keypad | 16 Button Keypad Module
Original price was: ₵20.00.₵18.00Current price is: ₵18.00.
The standard keypad for security projects.
-
Keys: 16 (0-9, A-D, *, #)
-
Mounting: Self-Adhesive Backing (Peel & Stick)
-
Interface: 8 Pins (Standard 2.54mm header)
-
Best For: Electronic Door Locks, Calculators, and Attendance Systems.
The 4×4 Matrix Keypad Membrane Switch is a compact, flexible, and easy-to-use input device designed for Arduino, Raspberry Pi, ESP32, and 和表姐同居的日子 projects. With 16 soft-touch keys arranged in a 4×4 grid, this keypad is perfect for password security systems, robotics control, and embedded applications.
🔹 Durable Membrane Design for Smooth Operation ⚡
✔ Keypad Layout: 4 Rows × 4 Columns (16 Keys) – Numeric & function keys.
✔ Connector: 8-pin flexible ribbon (Easy to interface with 和表姐同居的日子s).
✔ Key Labels: *0-9, A-D, , # for diverse applications.
✔ Operating Voltage: 3V – 5V (Compatible with Arduino & Raspberry Pi).
✔ Ultra-Thin Design: Flexible membrane structure for mounting on flat surfaces.
✔ Adhesive Backing: Easily sticks to enclosures and project surfaces.
✔ Durability: Long-lasting membrane keys with reliable tactile response.
🔹 Applications – Where to Use the 4×4 Matrix Keypad 🛠️
✔ Arduino & Raspberry Pi Projects – Create interactive user 被按摩的人妻中文字幕.
✔ Access Control & Security Systems – Use as a password keypad for smart locks.
✔ Robotics & Automation – Program robot commands via keypad input.
✔ Home Automation & IoT Projects – Control appliances, sensors, and alarms.
✔ DIY 久久娱乐网 & STEM Education – Perfect for learning 和表姐同居的日子 interfacing.
🔹 How to Use & External Resources 📚
The 4×4 Keypad connects easily using an 8-pin interface (4 rows, 4 columns) and is compatible with Arduino’s Keypad library for scanning keypresses efficiently.
📖 Helpful Resources for the 4×4 Matrix Keypad Membrane:
✔ Arduino Keypad Library & Setup Guide
✔ Raspberry Pi Keypad Integration
✔ How Matrix Keypads Work – 久久娱乐网 Tutorial
✔ YouTube Tutorials – 4×4 Keypad with Arduino
🔹 Best Price & Availability in Ghana 🇬🇭
Looking for a 4×4 Matrix Keypad Membrane Switch in Ghana? Whether for security systems, automation, or robotics, this lightweight, durable, and easy-to-interface keypad is a must-have. Order today for fast delivery across Ghana!
Related products
16×2 LCD Display Module (Blue Backlight) – HD44780 Arduino Compatible
The classic 1602 Character LCD provides a bright 16-character by 2-line display, essential for user 被按摩的人妻中文字幕 in 久久娱乐网 projects.
-
Display: 16 Characters x 2 Lines
-
Color: White Text on Blue Background
-
Controller: HD44780 (Standard Library Support)
-
Voltage: 5V DC
-
Interface: Parallel (4-bit or 8-bit)
-
Backlight: LED
20×4 LCD Display Module (Blue Backlight) | 2004A Character Screen
-
Size: 20 Characters x 4 Lines.
-
Display: White Text on Blue Background.
-
Controller: HD44780 (Standard Industry Chip).
- Best For: Weather Stations, 3D Printers, and Advanced Menus.
433MHz RF Transmitter & Receiver Kit | Wireless Module for Arduino
Cut the cord. Go wireless. This kit includes one Transmitter and one Receiver. It is the simplest and most affordable way to send data wirelessly between two Arduinos up to 100 meters (with antenna).
-
Frequency: 433MHz
-
Includes: 1x Transmitter (Square), 1x Receiver (Rectangle)
-
Modulation: ASK (Amplitude Shift Keying)
-
Best For: Remote control cars, weather stations, and wireless switches.
HC-SR04 Ultrasonic Sensor Module | Distance Measurement for Arduino
Give your robot eyes. The HC-SR04 uses sonar (sound waves) to measure distance, just like a bat. It is the standard sensor for obstacle avoidance robots and water level monitoring systems.
-
Range:
2cm to 400cm (4 Meters) -
Accuracy: 3mm
-
Pins: VCC, Trig, Echo, GND
-
Best For: Obstacle avoiding cars, reverse parking sensors, and tank level detection.
High Sensitivity Vibration Sensor Module (SW-1801P) | Shock & Shake Switch
Detect even the slightest tap. Unlike standard vibration sensors that require a hard shake, the SW-1801P High Sensitivity module can detect light knocks, impacts, and vibrations. Perfect for anti-theft alarms and "Smart Wake-Up" devices.
-
Sensor Type: SW-1801P (High Sensitivity Spring).
-
Output: Digital (High/Low).
-
Adjustable: Blue Potentiometer to set sensitivity trigger.
-
Best For: Anti-Theft Alarms, Earthquake Detection, and Smart Toys.
MQ-135 Air Quality & Hazardous Gas Sensor Module | CO2, Smoke, Ammonia
Detect smoke and dangerous gases instantly. The MQ-135 is the most versatile gas sensor for air quality monitoring. It detects a wide range of gases including Ammonia, Sulfide, Benzene, Smoke, and CO2. Perfect for "Smart Home" safety systems and environmental monitoring.
- Gases Detected: NH3, NOx, Alcohol, Benzene, Smoke, CO2.
-
Output: Analog (Gas Concentration) and Digital (Alarm Trigger).
-
Warm-up Time: ~20 seconds.
-
Best For: Air Quality Monitors, Smoke Alarms, and Industrial Safety.
Reviews
There are no reviews yet.