HC-020K Double Speed Measuring Sensor Module with Photoelectric Encoders (Optical Speed Encoder Module)

The HC-020K Double Speed Measuring Sensor Module is a photoelectric encoder-based speed detection module designed to measure the rotational or linear speed of moving objects. Using infrared optical sensing, it detects interruptions caused by encoder discs or slotted wheels and generates digital pulse signals proportional to the movement. These pulses can be counted by a microcontroller to calculate speed, direction, or position. The module is ideal for robotics, motor control, automation systems, and motion feedback applications using Arduino, ESP32, STM32, Raspberry Pi, PIC, AVR, and other embedded platforms.

Key Features -

• Photoelectric encoder-based speed measurement

• Generates digital pulse output proportional to movement

• Double-channel speed detection for improved motion sensing

• High-speed optical detection with fast response

• Easy interfacing with microcontrollers

• Compact PCB module for embedded applications

• Suitable for rotary and linear motion measurement

• Reliable non-contact optical sensing

• Compatible with Arduino, ESP32, STM32, Raspberry Pi, PIC, and AVR

• Ideal for robotics, automation, and motor feedback systems

Specifications -

• Product type - Optical Speed Measuring Sensor Module

• Model - HC-020K

• Sensor type - Photoelectric Encoder

• Operating voltage - 3.3V to 5V DC (Typical)

• Output type - Digital Pulse Signal

• Detection method - Infrared Optical Encoding

• Pulse output - Proportional to Speed and Rotation

• Response - Fast Optical Detection

• Package / Mounting type - Compact PCB Module

Applications -

• DC motor speed measurement

• Robotic wheel encoder systems

• Mobile robot odometry

• Conveyor belt speed monitoring

• Industrial motion control

• Encoder feedback systems

• Educational robotics projects

• Arduino and embedded speed measurement applications