![]() ![]() ![]() This is something for which you should take utmost care. Make sure that the line is always detected at least by one sensor if it is within the range of the three sensors. That is how the line is sensed by the sensors.īack to the post, you have to place the bot over the line and see what it reads for various position of the line. ![]() This is given to the comparator to compare with a reference signal generated by the potentiometer. This reflected beam is picked up by the IR detector and its conduction increases and hence a voltage variation in the output pin (0v for absence of IR rays and 5V for maximum intensity). The white surface reflects most of the beam while the black surface absorbs most of the beam. It is really helpful if those LEDs are right on top of the sensors. Again was a trade-off between the look and the feature, I choose the feature. I placed the output LEDs (green) directly above the line sensor to avoid confusion. ![]()
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