AJMRTC KY-004 3Pin Button Key Switch Sensor Module, 6×6×5mm Tactile Push Button Breakout Board, KY004 Momentary Switch Module for Arduino DIY Electronic Starter Kit Project

AJMRTC KY-004 Button Key Switch Sensor Module is a common tactile input component for electronic starter kits. It uses a 6×6×5mm momentary push button. When the button is pressed, the module outputs a trigger signal for microcontrollers to read. The breakout board comes with 3 standard pins for power, signal and ground connection, enabling quick wiring without soldering. The tactile switch provides clear feedback and supports repeated pressing. It works great with Arduino for building user input interfaces, trigger switches and simple interactive prototypes. It is widely used in electronic teaching kits, DIY control circuits, robot operation panels and embedded prototype development.

Specifications

1. Brand: AJMRTC
2. Model: KY-004 (KY004)
3. Switch Type: Momentary Tactile Push Button
4. Button Size: 6×6×5mm
5. Pin Count: 3Pin
6. Signal Type: Digital Input
7. Compatible: Arduino
8. Application: Electronic Starter Kit, User Input Trigger, DIY Control Circuit
9. Feature: Plug and Play, Tactile Feedback, Easy Wiring