Posted: Mar 10, 2020 9:31 pm
zulumoose wrote:If possible, one solution would be to have a wire or magnets just under the surface for it to follow on a set path.
All it would need then is a couple of sensors and some basic logic to make course corrections.
Other options would be for a laser pointer to trace the route for it, or for two visible markers to slowly move along the edges so that it just has to keep aligned between them and reverse direction when close enough.
You are correct. A buried guide wire would be simple to install and detect, and I just may resort to that. An inward spiral that was followed by the mower in a counterclockwise direction would allow clippings to be thrown free of the grass yet to be cut. No sense in cutting those clippings again and again. A magnet at the end of the spiral could serve as an end-of-task detector.
I just finished the first phase of soldering the jumper wires from the NRF24L01 wifi modules to the Arduino Nano, and installing a 10uf 30v electrolytic capacitor between the +/- pins on the wifi module to filter its power supply a touch. I yet have to install and wire up the two joysticks or battery clips. When those are done the Master will be ready to accept programming.
RS