Keyestudio RJ11 EASY plug Knock Sensor Module for Arduino STEAM

The Keyestudio RJ11 EASY plug Knock Sensor Module is a digital vibration-sensing expansion board designed for interactive STEAM education. Ideal for students, educators, and hobbyists, this module simplifies the process of adding physical tap and impact detection to your projects. It is perfect for creative applications such as DIY electronic drums or knock-activated switches.

SW-280 vibration switch

At its core, this module features an SW-280 vibration switch which acts as an inductive proximity sensor. When a physical impact or vibration force is detected, it transmits the signal to your circuit to trigger a programmed action.

Solderless RJ11 connection

Designed specifically for the EASY plug system, this module utilises an RJ11 connector to prevent wiring mistakes. This makes it highly suitable for classroom environments and rapid prototyping when paired with an EASY plug control board.

Convenient positioning hole

The module includes a pre-drilled positioning hole, allowing you to securely mount the sensor to external structures. This ensures stable physical contact, which is essential for accurate knock and vibration detection.

Compact digital specifications

Operating at a standard 5V, this digital sensor delivers reliable high or low signal outputs. It features a compact footprint of 38mm by 20mm by 18mm and weighs only 4.4g, making it easy to integrate into lightweight builds.

Creative STEAM projects

This sensor is highly versatile, enabling makers to build interactive projects like electronic drums or touch-sensitive alarms. It serves as an excellent practical tool for teaching physical computing and digital logic.