Infrared tracking sensor (fixed distance)

The line tracking sensor is specially developed by our company for line-following cars, designed to simplify and stabilize the operation without the need for potentiometer adjustment. The line tracking sensor is essentially an infrared transmitting and receiving device, consisting of a pair of infrared emission and reception tubes.

• Working Principle:

  • The emission tube emits infrared light at a specific frequency.
  • When the emitted infrared light encounters a reflective surface in the detection direction, it is reflected back and received by the receiving tube.
  • The reflected signal is processed by an inverter (Schmitt trigger) circuit.
  • Upon detection, the blue indicator light turns on, and the signal output interface outputs a digital signal (a low-level signal).

• Environmental Interference:

  • The infrared emission and reception heads of the line tracking sensor are significantly affected by ambient light.
  • Generally, the closer the sensor is to the reflective surface, the better the detection effect.

• Specifications:

  • Operating Voltage: 3.3V - 5V
  • Detection Distance: 1mm - 20mm

This sensor is optimized for applications in line-following cars, ensuring more straightforward and stable operation without the need for manual adjustments.

Schematic Diagram