i have a line-following car, which has a color sensor in the middle and 2 line-following sensors on the sides.
i have a track with colored parts which i tried to pass for a 2 weeks now with no luck,
Q/ what is your advice on number of sensors and programming approach.
my biggest challeng is the big track where in each turn both sensors read the black track and stuck
black line width is 8 cm , each color block is 8 cm * 9 cm.
Red: make 360 turn
blue: stop for 10 sec
yellow: stop for 15
green : start and end
The three-sensor configuration you describe should work well to navigate the track, if you can keep the color sensor reasonably well centered over the line. But five sensors would work better.
Get the centering to work first, for a straight portion of the track, and make sure that you can detect the color changes.
When that works well, then start to work on navigating the turns.
The problem is , if I programmed the Arduino to make small turns when it leaves the track (with a straight line), i can't keep up with the big turns and the car leaves the track eventually
You have at least 2 types of turns. Micro turns and Macro turns. The default could be micro turns with a look ahead sensor(s). The look ahead sesnor(s) could alert to an upcoming macro turn. Then the program could possibly handle those 2 different situations.
I built a Hexadpod using 2 ESP32 WROVERS and 1 ESP32 WROOM. I was amazed at the number of things that needed to be done for the hexapod to be able to roam around a place on its own. I learned a lot.
thanks for your kind responses, yes i found some code posted online and i did similar cars in the past but most were small tracks with less than 3 cm width. but i will take my time to analyze the code
