Description
Reviews
| 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 |
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.
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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