DESCRIPTION The 4-Key Push Button Module integrates four tactile push buttons onto a single compact PCB, providing a ready-to-use input interface for microcontroller projects. Designed for ease of use, it outputs individual digital signals for each button press, making it straightforward to add user controls to any Arduino, ESP32, or Raspberry Pi build. The module's compact footprint and standard 2.54 mm pin spacing make it ideal for breadboard prototyping and panel-mounted enclosures alike. FEATURES Four independent tactile push buttons on a single PCB Individual signal output pin per button for direct digital input reading Standard 2.54 mm (0.1") pin pitch, compatible with breadboards and standard headers Low-profile, compact module suitable for panel mounting or enclosure integration Compatible with 3.3V and 5V logic microcontrollers No soldering required when used with header pins APPLICATIONS User interface input for Arduino, ESP32, and Raspberry Pi projects Menu navigation and selection in OLED or LCD display-based systems Game controllers and interactive props for maker and STEM projects Industrial control panel prototypes and HMI development Robotics control input and tele-operation interfaces TECHNICAL DETAILS Number of Buttons: 4 Operating Voltage: 3.3V – 5V Output Type: Digital (one pin per button) Pin Pitch: 2.54 mm Button Type: Tactile push button (momentary) SHIPPING LIST 1x 4-Key Push Button Module
