Billericay-Boy
New Member
I am doing the old 'Build a robot to cut the grass' bit and while moving the platform abound it not a problem (no cutting motor yet) i have been perplexed about all the different suggestions of how to keep it on the grass. i have read about colour recognition (grass = green), GPS, Laser fencing etc. but i seem to have settled on the idea of a burried wire fence. having done a bit of research i have found someone who has done a similar thing but have no joy in contacting them. Below is a link to their website where they have circuit diagrams of the i2c receiver and a transmitter which sends a FR signal round a perimiter cable.
Receiver <A href='http://www.betuwe.net/~mowbot/UDO5recvRcv.PDF' Target=_Blank>External Web Link</a>
Transmitter <A href='http://www.betuwe.net/~mowbot/UDO5transSch.PDF' Target=_Blank>External Web Link</a>
I like the idea of this unit being i2c as it makes the interface a lot easier but my concern is if i get PCBs made for these using the designs i have been quoted GBP 50 per design (for 4 & 5) little boards respectivly. This seems a lot to lay out on an experiment.
My other problem is that they use a tunned coil to pick up the signal, can anyone advise how i can make a coil which will pick up the correct signal.
thanks
Receiver <A href='http://www.betuwe.net/~mowbot/UDO5recvRcv.PDF' Target=_Blank>External Web Link</a>
Transmitter <A href='http://www.betuwe.net/~mowbot/UDO5transSch.PDF' Target=_Blank>External Web Link</a>
I like the idea of this unit being i2c as it makes the interface a lot easier but my concern is if i get PCBs made for these using the designs i have been quoted GBP 50 per design (for 4 & 5) little boards respectivly. This seems a lot to lay out on an experiment.
My other problem is that they use a tunned coil to pick up the signal, can anyone advise how i can make a coil which will pick up the correct signal.
thanks