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Detailed Description:

The Red Limit Switch Module is a fundamental and reliable component for adding physical position detection to your robotics, automation, and prototyping projects. This mechanical endstop sensor is a simple yet effective device that provides a digital signal when a moving part reaches a specific physical limit. Its compact design features a standard microswitch with a lever, mounted on a small circuit board with a three-pin header, making it effortless to integrate into your circuits. This type of sensor is a cornerstone in 3D printers and CNC machines, where it is used to define the home position of each axis and prevent the machine from exceeding its safe travel limits, safeguarding both the equipment and the workpiece.

A key technical advantage of this module is its straightforward digital output. When the lever is pressed, the signal pin's state changes, which can be easily read by any microcontroller, such as an Arduino or Raspberry Pi. Many versions, including this popular Red module, feature an onboard LED that illuminates when the switch is triggered, providing a clear visual indicator for debugging and calibration. The module's simple wiring—with VCC, GND, and Signal pins—allows for a quick and secure connection to your control board, often without the need for additional external components. This mechanical endstop switch is a cost-effective, durable, and highly dependable solution for ensuring the precision and safety of any project requiring positional feedback.

This Red Limit Switch Module is a mechanical lever-type switch mounted on a PCB, designed to act as an endstop detector or mechanical position sensor in motion control systems. When the lever is pressed, it changes the digital output state, allowing your microcontroller to take action—like stopping a motor, reversing direction, or triggering alerts.

With built-in resistor circuits and signal conditioning, it’s plug-and-play with Arduino, CNC drivers, 3D printers, and other logic-level systems. The compact design and pre-soldered pins make it easy to integrate into any automation or robotics platform.

Key Features:

• Pre-mounted mechanical lever limit switch

• Digital output (triggered on press)

• Compatible with Arduino, CNC, 3D printer controllers

• Stable, repeatable performance

• Onboard resistor and LED indicator (on some models)

• Ready-to-use 3-pin interface: VCC, GND, Signal

• Long life mechanical actuation (up to 1M cycles)

Technical Specifications:

How to Use:

1. Connect VCC (5V), GND, and Signal to your microcontroller

2. Monitor the digital pin for LOW signal when switch is pressed

3. Use to limit motion, trigger reverse, stop motors, or home axes

Applications:

• CNC endstop detection (X, Y, Z axes)

• 3D printer homing and limits

• Robotics obstacle feedback sensors

• Mechanical limit detector for motors and actuators

• DIY automation projects

• Safety stop mechanism in motion systems

• Door contact or trigger switch applications

Package Includes:

• 1 x Red Limit Switch Module