Button Sensor Module PCB 3Pin 1Position Key Switch Sensor Board with Heat Dissipation and AntiInterference Circuit Model: Hyuduo4re5x3yoq7 This compact button sensor module provides a reliable, lownoise input solution for single board computers and microcontroller projects. Its small PCB footprint, 3pin interface, and builtin heat dissipation and antiinterference circuitry reduce wiring complexity and improve system stability. Key benefits Reliable user input: Provides a durable, tactile key switch for power, reset, or user control inputs. Reduced signal noise: Builtin antiinterference circuit minimizes false triggers in electrically noisy environments. Improved thermal stability: Heat dissipation design helps maintain consistent performance during prolonged use. Easy integration: Standard 3pin PCB pins fit breadboards and common header connectors for quick prototyping and installation. Spacesaving design: Singleposition switch and compact board save space in tight enclosures. Features and specifications Function: Singleposition mechanical key switch on a PCB sensor board. Interface: 3pin connection for straightforward wiring to GPIO or signal inputs. Circuit design: Includes antiinterference components to filter spurious signals and protect input stability. Thermal considerations: PCB layout and materials oriented for heat dissipation to support sustained operation. Form factor: Compact PCB suitable for integration into small projects and enclosures. Material: Standard PCB substrate with plated contacts and a mechanical switch rated for repeated operation. Compatibility: Designed for use with single board computers and microcontrollers, compatible with common platforms used in maker and embedded projects. Typical applications Single board computer power or reset button: Add a dedicated hardware button to systems that lack a builtin switch for controlled startup and shutdown. DIY electronics and prototyping: Use as a user input for menus, mode selection, or manual triggers in hobbyist and development boards. Embedded control panels and industrial prototypes: Provide a reliable, lownoise input switch where signal integrity is important. Installation notes Connect the three pins to power, ground, and signal lines according to your board or microcontroller input requirements. Mount on a header or solder directly into the project PCB. The compact footprint fits common breadboards and enclosures. Test input wiring for correct pullup or pulldown configuration on the host device to avoid floating inputs. Model reference: Hyuduo4re5x3yoq7