Which line sensor do you suggest for better performance in a line following competition The competition stage will be exposed to some amount, if not a lot, of ambient light. I am yet to experiment with a QTR sensor which i probably will order soon. But for better results, which sensor should i go with Analog or digital Of course, the digital gives a 0 or 1 and the analog 0 to 1023, and its obvious that the analog one has better range. But considering a little interference from external lighting conditions, should i go with the bigger range or the straightforward logical 0 or 1 Yes, its the same old follow-the-white-line on a black surface or the other way around.
Also, the white line in our competition will be 2 cm wide and i am planning to make use of PID. Is that an issue for the QTR-8A/RC sensor as they have 1cm separation between LED pairs Or can I use two of the middle LED pairs simultaneously for the zero-error process Hope you understand, and please forgive me if my thinking is wrong. I could use just a single center sensor and other side-sensors from the many-to-choose 8 LED pairs too, my thinking.
Finally, how would you rate the performance of using a QTR-3A/RC in the middle supported by a QTR-1A/RC on each side ( Making a 3-pi robot-like symmetrical sensor arrangement ). Will this result in a certain decrease in performance due to the use of 3 individual sensors, or will it still go at a good speed if the PID tunings are good Sorry for all this ignorance, but thanks for listening out!!! I have got lots of Qs in here, hope you got a similar quantity of As