YES i know alot about the northstar system its one of the best designs ,but cost about $3500 its not to much for me,only looking at others first

MINT 4200 that was bought by IROBOT company has a system little like that and under $100 sometimes on ebay

Only problem nobody found a way to hack it,even i tried it too,sensor has a lot of wires NOT like the NEATO XV-11 LIDAR hack that alot of robot builders are using,,it was hacked with API codes and more.

i sell them at about $120 and sold well over 25 so far

Holy, did I actually suggest something useful or did someone else already state the glyph idea before me?

I think I remember Rovio using Northstar technology. I dont think those are $3500. Google Rovio and see if there's a hack.

"Northstar" has been mentioned a few pages back. @Troy is correct, it is the Rovio which uses it. The cost is not as high as $3500.

See Page 21

Sorry, my bad. I only read the last couple pages. There was just so much to read since last looked.

That doesn't surprise me, the topic is getting big (when I find time I'll put together an overview of where we are with each part, unless someone else fancies reading the 30 odd pages and doing it).

My point wasn't that it's been previously mentioned but that it isn't as high cost as $3500. It, from what I can find on it, consists of IR beacons. This should be relatively low cost to produce. Personally I think it's a good idea. They are stand alone beacons which emit IR, nothing special and could probably be powered by a close by mains outlet or batteries depending on what you want to use.

It's ok. I will admit if I'm wrong. No harm in that. It's not like I'm a narcissist.

Rovio uses some close to it,i took apart the rovio and its hard to make or hack the design also,but the base can be used for a robot i guess since EZB has a interface for it.