I'm designing my lawn mower robot, and I am in the perimeter stage. The electronic part is done, and works quite good, now comes the software.
I have 2 sensors on the front of the robot, left and right, turned 45° with respect to the forward direction. They sense the signal emitted by the wire.
I need an advice on how to manage the approach of the robot to the line. I mean the stage right before it starts following the line..
It can approach the wire from any angle, so the signals are always different and I don't know how to move the robot in the right position in order to start the following...
What's the usual approach?