Speed Sensor Module LM393 Comparator Slot Type IR Optocoupler For Motor Speed Detection Works With Arduino MCU 3V To 5V Ten Pack Easy Plug And Play For DIY Robotics And Hobby Projects

LM393 Speed Sensor Module with IR Optocoupler - 10-pack
✔️ 3.3-5V TTL output, slot IR optocoupler, 10-pack kit

The LM393 speed sensor module uses a slot-type IR optocoupler to detect passing teeth or marks on a rotating wheel. It converts the motion into clean digital pulses for motor speed detection, pulse counting, and position sensing, making it ideal for Arduino and other 3.3-5V MCUs in DIY robotics and automation projects.

✅ Output: digital switch (0/1) TTL level
✅ Voltage: 3.3-5V DC
✅ Slot width: 5 mm (0.20 in); board size: 33 x 14 mm (1.30 x 0.55 in); small board 32 x 14 mm (1.26 x 0.55 in)
✅ Includes 10 x LM393 speed measuring sensors
✅ Fixed bolt holes for easy mounting

💡 What is a speed sensor module with LM393 used for in hobby robotics? This handy sensor helps track motor speed and provide reliable digital pulses for control systems. - Motor speed measurement and pulse counting for closed-loop control - TTL digital output compatible with 3.3-5V MCUs like Arduino - Slot-type IR optocoupler sensor for precise speed detection