The LM393 motor speed sensor uses an IR trough-type optical coupling sensor to detect objects passing through its slot. It produces clean digital pulses on the DO pin, which can be read directly by microcontrollers like Arduino for measuring wheel rotation speed, encoder signals, or triggering alarms. The AO pin provides an analog output if needed. Its compact design and wide voltage range make it suitable for robotics and automation projects.
Speed Sensor Module (Optical Encoder)
Rs 210.00
✅ Type: IR Speed/Encoder Sensor Module with LM393 Comparator
✅ Operating Voltage: 3.3–5V DC
✅ Outputs: 1 Digital (DO), 1 Analog (AO)
✅ Sensor Slot Width: 5 mm
✅ PCB Dimensions: 32 × 14 × 7 mm
✅ LED Indicators: Power ON, Output Pulse DO
✅ Output Signal: Digital TTL (0 or 1), drives up to 15 mA
✅ Mounting: Single bolt hole for easy installation
✅ Applications: Motor speed detection, pulse counting, position limit detection, optical switching, alarm systems with relays or buzzers
3 in stock
| Weight | 10 g |
|---|---|
| Dimensions | 40 × 20 × 20 mm |
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