IR Speed Sensor Module (LM393)

Measure rotational speed accurately with this 4-Pin Infrared Speed Sensor Module, built around the LM393 comparator IC for reliable digital output. It’s commonly used in industrial process control and robotics applications where precise speed monitoring of disks or belts is essential.

Powered by either 3.3V or 5V, this module reads rotation through a 5mm groove, outputting a high signal when an object is detected and low otherwise. Its digital output connects easily to a microcontroller’s interrupt pin, making it a dependable choice for speed control and position-tracking projects.

• Operating voltage 3.3V or 5V – Flexible power supply compatibility
• LM393 comparator onboard – Clean, reliable digital output
• 5mm groove width – Standard for disk-based speed sensing
• Low power requirement – Efficient for continuous operation
• 4-pin interface – VCC, GND, Dout, and Aout
• Interrupt-compatible output – Easy integration with Arduino
• Great for robotics – Ideal for speed and position tracking

Track rotational speed precisely with this IR Speed Sensor Module – reliable, low-power, and easy to integrate.