Description
Reviews
| Brand | - |
| Category | Robotics / STEM Teaching Tools / Sensors |
| Origin | - |
| Sensor Type | Single-Channel Grayscale Photosensitive |
| Output Signal | Digital (TTL) |
| Operating Voltage | 3.3V - 5V DC |
| Detection Color | Black, White, Red, Green Lines |
| Adjustable Sensitivity | Yes, via Potentiometer |
| Indicator LED | Power and Signal Status |
| Mounting Hole Diameter | 3mm |
| PCB Dimensions | 32mm x 14mm |
| Primary Application | Smart Car Line Tracking |
| Compatibility | Arduino, STM32, Raspberry Pi |
Anonymous
Mar 17, 2026
Rating: 5/5
Perfect for my robotics project
This sensor works flawlessly with my Arduino Uno. The sensitivity adjustment is very responsive, allowing me to calibrate it perfectly for the black tape on my white track. Great value for electronic competitions.
Anonymous
Mar 16, 2026
Rating: 4/5
Solid performance
Response time is quick enough for moderate speeds. At very high speeds, you might need multiple sensors, but for a single-channel module, this exceeds expectations.
Anonymous
Mar 13, 2026
Rating: 5/5
Bulk bought for our team
We purchased ten of these for our university competition team. Consistency across all units is impressive. They handle red and green lines just as well as black and white.
Anonymous
Mar 13, 2026
Rating: 4/5
Good but needs careful calibration
The module is compact and easy to wire. However, ambient light can affect readings if not shielded properly. Once I added a small hood, the line tracking became much more stable.
Anonymous
Mar 10, 2026
Rating: 5/5
Easy to use for beginners
I was worried about wiring it correctly, but the labels on the PCB are clear. The included documentation online helped me get started immediately. Highly recommended.
Anonymous
Mar 08, 2026
Rating: 5/5
Great educational tool
Bought this to teach my son about sensors and logic. The digital output makes it very simple to understand high/low signals. He got his car moving in an afternoon.
Q: Is this sensor suitable for outdoor use?
A: This module is designed for indoor controlled environments. Direct sunlight or rapidly changing outdoor lighting can interfere with the grayscale detection accuracy.
Q: Can this sensor detect colored lines like red or green effectively?
A: Yes, the photosensitive element is capable of detecting contrast between colored lines (Red, Green) and the background, provided the lighting conditions are consistent and the sensitivity is calibrated.
Q: What is the maximum operating voltage for this module?
A: The module operates safely within a range of 3.3V to 5V DC. We recommend using 5V for standard Arduino projects to ensure stable logic levels.
Q: How do I adjust the sensitivity if the car keeps losing the line?
A: Locate the blue potentiometer on the board. Use a small screwdriver to turn it slowly while testing over the line. Turn clockwise to increase sensitivity or counter-clockwise to decrease it until the indicator LED reacts correctly.
Q: Does this come with mounting screws?
A: No, the package includes only the sensor module. Standard M3 screws and standoffs are required for mounting, which are commonly available in electronics kits.
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