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

Features

• 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.