List item Hi guys. I am very new to the community and had a very little background about coding and electronics. I had decided to order a line following robot’s starter kit and successfully assembled them and got it running along the black line. However, i wanted to put more functions into the rob…

Sorry for putting the codes in the wrong place. Could you please suggest what kind of sensor(I assume one additional IR sensor) should I use and what codes should I be adding into the previous sketch? Load thanks!

Thanks, that is much better. Do you understand the code of the existing sketch? The existing sensors?

From my understanding, Left sensor and right sensor both work by defining the reflected black light and non-black light as (0,0),(1,0),(0,1) for each side and 0 and 1 equate to Low and High in the sketch. To stop, both sides of the sensors should be read LS(0,0) and RS(0,0).

That is correct almost. It would be when LS==0 and RS==0. I'm not sure why you're using the (n,n) notation. Each sensor has only one output. So all you have to do is mount another sensor, call it PS for pause? Then, pause when PS==0. You can execute a 10 second delay with: delay(10000);

Thanks a lot mate. This helps a lot. Please correct me if I'm wrong. Let say I mounted one additional IR(called PS) sensor on the most right corner of the front bumper, when the robot hits the horizontal black line, the PS sensor would detect the black line and pause with the delay(10000) function a…

That sounds like an accurate description... Let's think out of the box, too... what if, instead of just stopping when the two existing sensors see white, pause 10 seconds, then run forward for another 1/2 second and resume normal operation. Then, a gap in the line would be enough, you wouldn't need…

Jeez, I just reordered another additional IR sensor after the previous comment..lol. But that is fine. I am trying to digest what you said. So you mean to think it another way, I should find a way to code the sensors to continue running for a period of time(1/2) sec, then, the robot would be stoppin…

Your timing is backwards. First you see a gap, then you wait 10 seconds. That's all you really need, but the 1/2 second idea is just to ensure that you continue on the path. Suppose you got lost - then you would sit there forever because you would always see white, and wait another 10 seconds. The 1…

Keeps going forever until it detects any black line again????

Line following robot coding

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