Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Operating Voltage	3.3V - 5V DC
Output Signal	TTL Pulse Output
Detection Range	2mm - 10mm
Response Frequency	Up to 20kHz
Interface Type	GPIO Compatible
PCB Dimensions	25mm x 15mm
Mounting Hole Diameter	3mm
Included Software	Arduino & STM32 Test Code
Working Temperature	-20°C to +70°C
Application	Robotics, RC Cars, Drones

6 reviews

Anonymous

Mar 24, 2026

Rating: 4/5

Compact and effective

Small form factor fits well in tight spaces. It handles vibration better than expected. Would buy again for future projects.

Anonymous

Mar 17, 2026

Rating: 4/5

Good value, clear instructions

The sensor is responsive and easy to integrate. The only reason for 4 stars is that the mounting holes are slightly tight, but otherwise, it performs exactly as described.

Anonymous

Mar 11, 2026

Rating: 5/5

Plug and play experience

Connected it to my STM32 board and had data flowing within minutes. The signal stability is impressive for the price point.

Anonymous

Mar 06, 2026

Rating: 5/5

Great for learning embedded systems

As a student, I found this module excellent for understanding interrupts and timing. The documentation provided with the test program is very helpful for beginners.

Anonymous

Mar 04, 2026

Rating: 5/5

Perfect for my robotics project

This module works flawlessly with my Arduino setup. The encoder counting is accurate and the free test program made calibration a breeze. Highly recommended for DIY smart car builds.

Anonymous

Mar 04, 2026

Rating: 5/5

Reliable speed measurement

I used this to measure wheel rotation on a custom RC car. The pulse output is clean and consistent even at high speeds. The included code saved me hours of debugging.

5 FAQ

Q: Is this compatible with Raspberry Pi GPIO pins?

A: Yes, the module operates at 3.3V-5V and outputs TTL signals, making it fully compatible with Raspberry Pi GPIO pins.

Q: Does the free test program support ESP32?

A: Currently, the provided code supports Arduino and STM32. However, since the output is a standard pulse, it can be easily adapted for ESP32 with minimal code changes.

Q: How do I adjust the detection distance?

A: The detection range is fixed by the hardware design (2mm-10mm). You simply need to mount the sensor within this range of the encoder disk or reflective strip.

Q: Can this be used outdoors in rainy conditions?

A: The PCB itself is not waterproof. For outdoor use, we recommend enclosing the module in a protective case to prevent water damage.

Q: What is the maximum speed this sensor can accurately measure?

A: With a response frequency of up to 20kHz, it can accurately measure very high rotational speeds typical for small hobby motors and RC cars.

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