Time to get back to the mower again

I mowed for 2 hours yesterday. I should have only taken me 1 hour, but I had
let it get to tall. I need to get a compass for the robotic mower so I can
tell what direction it is facing. And then work on a border sensor.

Test subject cell

Test body from my cell phone

Sent by a Midwest Wireless phone.
http://www.midwestwireless.com/