Attributes

Brand	-
Category	Root / Electronic Components / Maker DIY
Origin	-
Sensor Type	Grayscale Reflective
Channel Count	8 Independent Channels
Detectable Colors	Black, White, Yellow, Blue, Green
Operating Voltage	3.3V - 5V DC
Output Signal	Digital TTL Level
PCB Length	65mm
PCB Width	25mm
Working Current	< 50mA
Interface Type	2.54mm Pin Header
Net Weight	12g

5 reviews

Anonymous

Apr 11, 2026

Rating: 5/5

Exactly as described

Non-infrared feature is great for avoiding interference from other sensors. Direct digital output makes interfacing with MCU very simple.

Anonymous

Apr 09, 2026

Rating: 3/5

Decent module

Documentation was a bit sparse, had to test pins manually to map the channels. Sensor itself works fine once you figure out the pinout.

Anonymous

Feb 12, 2026

Rating: 5/5

Great value

Fast response time compared to standard IR sensors. Successfully used it for a black line on white background and vice versa. Highly recommend for DIY.

Anonymous

Jan 31, 2026

Rating: 4/5

Good sensitivity

Works well but needs precise height adjustment from the ground. Once calibrated, it tracks colored lines accurately. Good value for the price.

Anonymous

Jan 22, 2026

Rating: 5/5

Perfect for RoboContest

Used this for our university line follower robot. The 8 channels provide excellent resolution for smooth turns. No infrared interference was a huge plus in the arena.

5 FAQ

Q: What is the optimal height from the ground?

A: Typically 5mm to 10mm works best for accurate detection. You may need to adjust based on your specific chassis design.

Q: Does this require external pull-up resistors?

A: No, the module has onboard comparators and circuitry. You can connect the output pins directly to your microcontroller GPIO.

Q: Is there an onboard microcontroller?

A: No, this is a pure sensor module without an MCU. It is designed to be controlled by an external processor like Arduino or STM32.

Q: Can it distinguish between blue and green lines?

A: Yes, the grayscale sensor detects contrast differences. It is calibrated to recognize various colors including blue and green against contrasting backgrounds.

Q: Is this compatible with Arduino Uno?

A: Yes, it outputs digital TTL signals which are fully compatible with Arduino Uno and most 3.3V/5V microcontrollers.

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