Note: The circuit comes with 1 Grove connection cable, you can buy additional Grove Base Shield to connect to Arduino or circuit  Seeeduino Lotus (Arduino Uno Compatible) , Grove Base Hat to connect to  ;Raspberry Pi or Grove Shield for XIAO to connect to Seeedstudio's XIAO programming and control circuit.
 
Grove - Line Finder v1.1 (Line finder sensor) uses infrared light to detect two main colors: white and black, the sensor will emit a change signal when switching from white to black and vice versa, suitable Suitable for making pathfinding, self-propelled, line tracking robots,...
 
Specifications:
 
SKU: 101020172
Voltage used: 3.3~5VDC
Output signal: TTL (High when black is detected, Low when white is detected)
The sensitivity can be adjusted using a variable resistor on the circuit.
Comparator IC: LMV358
Photo reflective diode: RS-06WD