In the smart car DIY process, we often use a line tracking sensor to make the smart car follow a line.

The keyestudio 3-channel line tracking module actually is an infrared sensor. The component used is a TCRT5000 infrared tube.

The working principle is to use the different reflectivity of infrared light to color, converting the strength of the reflected signal into a current signal.

During the detection, black is active at HIGH level, and white is active at LOW.

The detection height is 0-3 cm.

We have integrated three groups of TCRT5000 infrared tubes on a single board, convenient for wiring and control.

Turn the adjustable trimpot to adjust the module’s sensitivity.

The module comes with two 3mm positioning holes for mounting on other devices.

Note: before testing, turn the potentiometer to adjust the sensitivity. The sensitivity is the best when make the LED at the threshold point between ON and OFF.

Technical Parameters

Operating voltage: DC 3.3-5V

Detection height: 0—3cm

Interface: 5pin of 2.54mm pitch

Positioning hole diameter: 3mm

Dimensions: 42mm*31mm*7mm  

Weight: 6.6g

Environment attribute: ROHS