Let's Make Robots!

invisible fence

Buried wire fence

    Hey all, well I am revisiting my lawnmower project, well not really concerned with mowing lawn but more of an outdoor autonomous robot for my backyard..

    Anyway I spent ALOT of time with circuits over the past winter and with no real success. So to cut rapidly to the chase what I am trying to design/figure out is a buried wire fence type solution that I can put in my back yard with 2 sensors (left/right) on the robot and when it gets close to the wire it can either avoid it or follow it home depending on programming..