5-Sets I2C Soft 4x4 Matrix Keypad Kit - 5pcs Soft Membrane Keypads 4 x 4 16 Keys Keyboard Switch Module, 5pcs I2C Adapters for GPIO Savings for Arduino, Raspberry Pi, ESP32 Projects

Comprehensive 5-Sets Soft Keypad Kit (5 keypads+5 I2C adapters ) for DIY EnthusiastsThis kit comes with 5 flexible soft 4x4 matrix keypads (16 keys each), 5 I2C adapters to simplify connections, and a convenient storage container to keep everything organized and protectedperfect for multiple projects or backups without needing to reorder.
Soft Membrane Keypads with Easy MountingEach keypad features a durable, flexible design with double-sided adhesive tape on the back, allowing secure attachment to hard surfaces like project boxes, desks, or enclosuresideal for custom interfaces in robotics, security systems, or interactive prototypes.
GPIO-Saving I2C AdaptersThe included adapters enable I2C communication using just 2 GPIO pins (SDA and SCL) instead of the traditional 8, freeing up valuable pins on your microcontroller for other componentscompatible with Arduino, Raspberry Pi, ESP32, and more.
Genuine Lonely Binary Quality and CompatibilityBuilt by Lonely Binary, a reliable brand for maker electronics, these keypads and adapters support 3.3V to 5V operation, ensuring seamless integration with a wide range of MCUs; easy to program with popular libraries like Keypad_I2C for quick setup.
Versatile Applications for Makers and HobbyistsUse these 4x4 keypads for numeric entry, menu navigation, or custom controls in IoT devices, home automation, or educational projects; the soft, responsive keys provide tactile feedback while being compact and lightweight.

Lonely Binary I2C Soft Matrix Keypad Set

This kit comes with 5 flexible soft 4x4 matrix keypads, 5 I2C adapters to simplify connections, and a convenient storage container to keep everything organized and protected.

Features

Soft Matrix Keypad Kit

Comprehensive Soft Matrix Keypad Kit for DIY Enthusiasts

Unlock efficient input solutions for your electronics projects with the Lonely Binary I2C Soft 4x4 Matrix Keypad Kit.

4x4 Soft Matrix Keypad

Soft Membrane Keypads with Easy Mounting

Each keypad features a durable, flexible design with double-sided adhesive tape on the back, allowing secure attachment to hard surfaces like project boxes, desks, or enclosures.

I2C Matrix KeyPad Front

GPIO-Saving I2C Adapters

The included adapters enable I2C communication using just 2 GPIO pins (SDA and SCL) instead of the traditional 8, freeing up valuable pins on your microcontroller for other components.

I2C Matrix KeyPad Back

Genuine Lonely Binary Quality and Compatibility

Built by Lonely Binary, a reliable brand for maker electronics, these keypads and adapters support 3.3V to 5V operation, ensuring seamless integration with a wide range of MCUs.

What's in the Box

5 x Lonely Binary Soft 4x4 Matrix Keypad
5 x Lonely Binary I2C Adapters
1 x Storage Container

Lead-Free PCB Finish for Enhanced Safety

The Lonely Binary lead-free PCB with immersion gold finish is a purposeful design choice prioritizing user safety. This advanced, corrosion-resistant, non-toxic surface ensures durability and safe handling for frequent use in educational and professional settings.

Premium look
Corrosion Resistant
Safe for all users

Safe Innovation with Lead-Free Design

Empowering STEM Learning and Creative Projects with a Health-Conscious, Eco-Friendly PCB

In STEM education, hands-on experimentation is essential, and safety is critical. The Lonely Binary lead-free immersion gold finish PCB allows students to focus on learning and creativity without exposure to harmful materials. For hobbyists and professionals, this lead-free board offers a reliable, health-conscious solution that meets modern safety standards. By choosing a lead-free PCB, you’re prioritizing user safety and quality performance.

Safe for Classrooms and STEM Education
Non-Toxic Lead-Free Design
Enhanced Safety for Frequent Use
Peace of Mind for Parents and Educators