Hello Humanoids...
In this project, I have made a line following robot using Arduino and IR sensor module.
Get code and circuit here: https://bit.ly/3liX9QO
IR Sensor module has the great adaptive capability of the ambient light, having a pair of an infrared transmitter and the receiver tube, the infrared emitting tube to emit a certain frequency, encounters an obstacle detection direction (reflecting surface), infrared reflected back to the receiver tube receiving, after a comparator circuit processing, the green LED lights up, while the signal output will output digital signal (a low-level signal), through the potentiometer knob to adjust the detection distance, the effective distance range 2 ~ 10cm working voltage of 3.3V-5V.
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