Hi everyone,
I'm trying to build a robotic lawn mower for a small garden.
The electronic part for handling the perimeter wire is done and working. Now I would like to handle the "going back home" of the robot when the battery is low.
I can follow 2 ways:
- when the battery is low, the robot follow the wire until it reaches "home".
- it goes back home through the calculations on its position.
I'm trying to use the first way, but it seems to be harder than what I expected.
The real problem is not following the wire, but the positioning on the wire! The robot could arrive from any direction, so I don't know how to position the robot on the line, ready to follow it...
It has 2 magnetic sensors on the front, positioned 45° with respect to the forward direction. I'm not sure if 2 are really needed, but at the moment this is it..
Any advice?
thanks