Post by thread:[EE] 2-wheel Balancing Robot

Thank you everyone for your help! James: I looked at the http://www.balbots.com website. Their bot is too basic as it uses 2 IR detectors to do the balancing. If the bot is going up/down hill or the floor is not even, it will fall for sure! Mike: Thank you for pointing out this AppNote. I will take a look at it to see if there is anything I can use. I didn't think that differentiate/integrate is this simple, but it all makes sense now. Robert: I already ordered the accelerator and gyro eval boards from Analog Devices. I will play with them for a while to see what their responses look like and determine what to do with the date later (whether or not to integrate/diff). I won't go with the Pot route for the long run, though. Maybe just at the early development stages as James pointed out. I am really hooked to do this project and hope I can make it happens someday soon! I am working on it a little bit every day since I have a full time job and attend night school (2 nights a week) at the same time. I have a midterm next week, but I can't focus on studying as my mind is filled with images of my 2-wheel balancing robot! Regards, Russell McMahon <spam_OUTapptechTakeThisOuTparadise.net.nz> wrote: A friend supplied this site. Balancing robot kitsets.Kits with balancing electronics from $US350 _________ Recently a Circuit Cellar mag arrived and in the small adds at the back was one for an autonomous balancing robot: http://www.balbots.com/ The basis of your own Segway. Link: Graham Moss

----- Original Message ----- From: "James James" <.....james_iboxKILLspam@spam@yahoo.com> > Mike: > Thank you for pointing out this AppNote. I will take a look at it to see > if there is anything I can use. I didn't think that > differentiate/integrate is this simple, but it all makes sense now. The concept is elegant and very basic: past, present, and predicted behavior/performance drives the control inputs. Feedback on steroids, in 20 lines of code or less.

James, On Wed, 16 Nov 2005 23:35:35 -0800 (PST), James James wrote: > Thank you everyone for your help! I'm not sure if anyone else has mentioned it, but did you know there in a Microchip AppNote on building an inverted pendulum balancing device? It's AN964 and can be found here: http://www.microchip.com/stellent/idcplg?IdcService=SS_GET_PAGE&nodeId=1824&appnote=en021807 This may be well known old news, but I thought I'd chuck it in anyway! :-) Cheers, Howard Winter St.Albans, England