LM393 Speed Sensor Module

LM393 Speed Sensor Module – Motor RPM & Object Speed Detection Sensor

The LM393 Speed Sensor Module is a reliable and accurate sensor designed to measure rotational speed (RPM) and detect object movement. Using an optical IR system with the LM393 comparator chip, it provides stable digital output for Arduino, ESP8266, ESP32, and Raspberry Pi projects. Ideal for robotics, automation, motor speed control, and DIY electronics.

🔹 Key Features:

⚙️ Accurate Speed Measurement – Detects RPM of motors, wheels, and rotating objects
📡 Infrared Sensing – Stable and interference-free detection
🔌 Digital Output (DO) – Works easily with Arduino & microcontrollers
📏 Adjustable Sensitivity – Onboard potentiometer for fine tuning
💡 Indicator LEDs – Shows signal and power status
⚡ LM393 Comparator IC – Ensures stable and noise-free output
🧰 Compact & Lightweight – Easy to integrate in any project

🎯 Perfect For:
• Motor RPM measurement
• DIY vehicle/robot speed detection
• Conveyor belt automation
• Encoder-based projects
• Arduino/ESP/Raspberry Pi learning projects