The Optical Endstop Switch with 1m Cable is a versatile infrared beam-break sensor designed primarily for 3D printers but also suitable for robotics, automation, and security systems. It features an IR transmitter and receiver in a U-shaped housing that detects when an object interrupts the beam, triggering a HIGH output signal and illuminating the onboard green LED. With 3.3V/5V logic compatibility and a durable 100cm 24AWG cable terminated with JST 2.54mm connectors, this module ensures easy plug-and-play installation. Whether used as a travel limit switch in 3D printers, a revolution counter in spoked wheels, or a motion trigger in security systems, this optical endstop offers high precision, reliability, and long service life. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Features:
Precise Beam-Break Detection – Uses an IR transmitter/receiver to detect objects passing through.
Wide Compatibility – Works with 3.3V and 5V logic devices including Arduino and other controllers.
LED Status Indicator – Green LED lights up instantly when the beam is broken for easy monitoring.
Plug-and-Play Design – Comes with a 100cm 24AWG cable and 3-pin JST connectors for quick setup.
Durable & Reliable – Designed for long-term use in 3D printers and automation equipment.
Versatile Applications – Suitable for travel limit detection, security alarms, counting mechanisms, and more.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Applications:
3D Printers – Detect travel limits to prevent mechanical crashes.
Automation Systems – Act as a non-contact object detector in robotics.
Security Systems – Trigger alarms when beams are broken.
Counting Mechanisms – Count revolutions of rotating objects like spoked wheels.
DIY Electronics Projects – Useful for beam-break based triggering or motion detection.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
| Operating Voltage | 3.3V – 5V |
| Detection Method | IR Beam Interruption |
| Output Signal | Normally LOW, goes HIGH when beam broken |
| Indicator | Green LED (lights when beam is broken) |
| Cable Length | 100cm (24AWG) |
| Connector Type | 3-pin 2.54mm JST |
| Applications | 3D Printers, Security Systems, Counters, Robotics |
| Shipment Weight | 0.104 kg |
| Shipment Dimensions | 10 × 8 × 3 cm |
Please allow 5% measuring deviation due to manual measurement.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Documentation:
Module Connections
Note that the cable is not color coded. Red does not necessarily go to Vcc, so be sure to follow the pin-out of the connector labeled on the back of the board as shown below
1×3 Connector
VCC= 3.3 or 5V to match the MCU.
GND = Ground which should be common with the MCU.
SIG = Signal output of the module. This pin is normally LOW. When the IR beam is broken, the output goes HIGH (Vcc).
The module has 2 large mounting holes.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
OUR EVALUATION RESULTS:
Build quality is good on these modules but there are a couple of things to note to make sure it is right for your application.
The sensor output is analog rather than having a comparator digital output. This means that if an object is moving slowly through the uprights, while the beam is partially blocked it can result in an output voltage that is in-between the valid logic states of HIGH or LOW for a period of time.
Similarly if the object moving through the uprights is semi-transparent to IR, the output will go to a level that is somewhere in-between ground and Vcc.
The cable exits on the same side as the sensor. This can be good or bad depending on your application and how the sensor is to be mounted.
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
Package Includes:
1 x Optical Endstop Switch with 1m Cable
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD
