PmWiki | Robots / Find the Goal

Goal

Search for the goal (christmas lights), and once found, go towards it until reached.

Notes

Use light sensors to search for the goal
Possible Problem when trying to find the light or a color
- Light sensor readings to find light might interfere with the light sensor readings for color detection.
  - Apparently, these probably won't interfere, as long as the robot is close enough to the eggs (between 1/2 to 1 inch). This is due to the disparity of the eggs and the slight dullness of the Christmas lights.
I think we should just pick up all the balls and separate them into two groups (I believe we can do that with only 3 servos and a plastic holder made from soda bottles), then find the goal and put all of our balls in. (Of course not as simple as I made it sound but it shouldn't be too hard. Diagram to come.)
- (Quality is terrible, I'm no artist, but I think you get the idea.)
This task will be easier with a rotating photo transistor (rotates by sitting on top of a servo). The servo moves left and right at increments of 45 degrees from one end to the other (approximately, can be changed). Every 45 degrees it takes a sensor reading from the photo transistor. If the current reading is higher than the previous one, begin turning in that direction.

Code