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TRACK SENSOR - BRICK (Itead IM121012001) infrared sensor TCRT5000


2,97 € s DPH
2,97 € bez DPH

TRACK SENSOR - BRICK (Itead IM121012001) infrared sensor TCRT5000

Electronic brick of track sensor is based on sensor TCRT5000, which is to receive the returned infrared signals after sending out to detect the signal strength. Within a certain height range, the control board can detect whether there are objects blocking via digital pins . Track sensors are widely used in smart cars or printers for black and white line detection.


1. Plug and play, easy to use. Compatible with the mainstream 2.54 interfaces and 4-Pin Grove interfaces in the market.

2. With use of M4 standard fixed holes, compatible with M4-standard kits such as Lego and Makeblock.

3. With adjustable potentiometer to set detecting height threshold.

4. With hysteresis comparison circuit for more stable digital output voltage

5. With LED indicator for real-time detection of current digital output status.



PCB size48.0mm X 13.00mm X 1.6mm
Working voltage3.3 or 5V DC
Operating voltage3.3 or 5V DC
Compatible interfaces2.54 3-pin interface and 4-pin Grove interface(1)
Detecting height range0-50mm(2)

Note 1S for analog/digital output port ( defined according to the switch), V and G for voltage at the common collector and ground respectively

Note 2: The specific measurable height is depended on the color and reflection of the material, the more the color contrast, the better to detect.

Electrical characteristics

Working voltage2.155.5VDC
Digital output voltage(VCC=5V)0-5V
Working current(VCC=5V)-38-mA
Threshold hysteresis ΔUth-VCC*0.09-V
Detecting height range(VCC=5V,Vth=3.5V)0-50mm


Switch and indicator

1. Regulating of threshold voltage:

The threshold voltage is a voltage for comparison. When the sensor encounters obstacles, and the induced voltage is above the threshold, it will digitally output a high level (3.3V or 5V); when there are no obstacles, and the induced voltage is below the threshold, it will digitally output a low level (0V). In this way, the digital pin can be used directly to see if the sensor encounters obstacles or not. The threshold voltage can be regulated by simply twisting the potentiometer which is shown in the following diagram, and it increases by rotating to left side and decreases by rotating to right side

2. Status lamp

Within certain height, LED lamp will be OFF when obstacles or non-black objects are detected and it will be ON when no obstacles but black objects (compared to the non-black objects under the same height) are detected.


Brick TypeSensor Brick
Brick Interface3PIN
Brick Power Supply5V
Board Size48 × 13 × 1.6mm
LED ColorNo




Demo Code


MotoMama And Makeblock 2WD Robot Kit

We use the Iteaduino with Motomama to drive the Makeblock 2WD Robot Kit. And use the track sensor to track the line


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