Quad RGB Sensor

Quad RGB Sensor


The quad RGB sensor uses visible light as fill lights, which significantly reduce the interference of ambient light. In addition, it provides the function for recognizing colors. The new ambient light calibration function also reduces the interference of the ambient light in line following. With four light sensors, it can support more programming scenarios.


Quad RGB sensor Dual RGB color sensor
Plastic casing to improve the durability and quality Yes No
Line-following sensor 4 2
Color sensor 4

(also serve as line-following sensors)

Light sensor 4

(also serve as line-following sensors)

Fill light Visible light IR light
Ambient light calibration to significantly reduce the interference of ambient light Yes No


Button description

  • Double-press: When the button is double-pressed, the quad RGB sensor starts to learn the background and line for line following.

Place the light sensors on the background of the line-following track map and double-press the button. When you see the LEDs indicating the line-following state blink quickly, sway the sensors from side to side above the background and line until the LEDs stop blinking. It takes about 2.5 seconds. The parameter values obtained are automatically stored. If the learning fails, the LEDs blink slowly, and you need to start the learning again.

  • Long-press: When the button is long-pressed, the quad RGB sensor switches the color of the fill lights. Generally, you don’t need to change the color. The color is set automatically after the learning is complete.