3 4 5 12 16 20 Key Button 4*4 Membrane Switch Keypad 1×4 1×6 3×4 4×4 4×5 Matrix Array Keyboard For Arduino Smart Car DIY Kit

Description

3 4 5 12 16 20 Key Button 4×4 Membrane Switch Keypad – The Ultimate Matrix Keyboard for Arduino & Smart Car DIY Kits

Upgrade your electronics projects with this versatile, high‑density membrane keypad. Designed for Arduino, Raspberry Pi, and smart car control systems, it offers a wide range of key configurations (1×4, 1×6, 3×4, 4×4, 4×5, 5×12, 16×20) in a compact, low‑profile package. Whether you need a simple 4×4 matrix for a home automation panel or a larger 5×12 layout for a custom dashboard, this keypad delivers reliable performance and easy integration.

Key Highlights

• Multiple Matrix Options – 1×4, 1×6, 3×4, 4×4, 4×5, 5×12, 16×20 – choose the layout that fits your project.
• Durable Membrane Switch – 10,000+ actuations per key, waterproof and dust‑proof for outdoor or automotive use.
• Low Power Consumption – ideal for battery‑powered Arduino boards and IoT devices.
• Compact 4×4 Core – 4×4 layout fits most 7‑segment displays and LCD screens.
• Easy Wiring – 4‑wire matrix design, compatible with standard Arduino libraries and IDE.
• High‑Contrast Keys – clear, tactile feedback with a 0.5 mm spring‑back for fast input.
• Heat‑Resistant Silicone – withstands temperatures up to 120 °C, perfect for automotive dashboards.

Specifications

• Dimensions: 60 mm × 60 mm (4×4 core) – extendable to larger matrices.
• Operating Voltage: 3.3 V – 5 V DC.
• Current per Key: < 1 mA.
• Material: Silicone rubber with printed key labels.
• Mounting: Surface‑mount or through‑hole options available.
• Packaging: 5‑piece set per order for prototyping and production.

Ideal Applications

This membrane keypad is perfect for:

• Arduino-based smart car dashboards and control panels.
• Home automation touch panels.
• Industrial control units requiring low‑profile input.
• Educational robotics and electronics kits.
• Portable devices and handheld gaming controllers.

Why Choose This Keypad?

With its rugged construction, low power draw, and flexible matrix options, this keypad is a reliable choice for both hobbyists and professional developers. Its compatibility with Arduino libraries and straightforward wiring make it a breeze to integrate into any project. Whether you’re building a smart car, a custom remote, or a high‑density control interface, this 4×4 membrane switch keypad delivers precision, durability, and a sleek look that enhances any build.