Upgrade your Arduino projects with the 1Set HC-020K Double Speed Measuring Sensor Module, a high‑precision photoelectric encoder kit designed for accurate motor speed detection and control. Whether you’re building robotics, automated conveyor systems, or DIY speed‑sensing experiments, this module delivers reliable performance with minimal setup.
Key Features
- Dual‑speed measurement capability – capture two independent speed signals simultaneously
- Photoelectric encoder technology for high‑accuracy, low‑latency speed detection
- Compact 4‑pin interface compatible with Arduino Uno, Mega, Nano, and other microcontrollers
- Wide operating voltage range (3.3 V – 5 V) for flexible integration
- Built‑in pull‑up resistors and signal filtering for noise‑resistant performance
- Easy-to-use library support and example codes available for rapid prototyping
Technical Specifications
- Model: HC‑020K
- Output: 5 V digital pulse, 3.3 V compatible
- Maximum speed: 10 000 RPM per channel
- Resolution: 0.1 % of full scale
- Response time: < 1 ms
- Operating temperature: –20 °C to +70 °C
- Dimensions: 30 mm × 20 mm × 10 mm
Applications
From hobbyist robotics to industrial automation, the HC‑020K is ideal for:
- Motor speed monitoring and closed‑loop control
- Rotary encoder projects in robotics and CNC machines
- Real‑time data logging for performance analysis
- Prototyping speed‑sensing circuits in electronics labs
- Integration with PLCs and SCADA systems via Arduino bridges
Why Choose This Kit
Our HC‑020K module offers a cost‑effective, high‑precision solution for dual‑speed measurement. The photoelectric design eliminates mechanical wear, ensuring long‑term reliability. With a straightforward 4‑pin interface and extensive documentation, you can get your project up and running in minutes.
Compatibility & Wiring
Connect the module to your Arduino using a simple 4‑pin header:
- VCC – 5 V or 3.3 V (depending on your board)
- GND – Ground
- OUT1 – Speed channel 1 output
- OUT2 – Speed channel 2 output
Use the provided library to read pulse counts and calculate RPM directly in your sketch.
Package Includes
- 1 × HC‑020K Double Speed Measuring Sensor Module
- 1 × 4‑pin JST connector
- 1 × 5 mm pitch screw‑terminals (optional)
- Quick‑start guide and example code
- Warranty card and support contact
Price: Original price was: $ 5.34.$ 1.78Current price is: $ 1.78.

