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Topic: Balancing robot for dummies (Read 145 times) previous topic - next topic

osmaneralp

@Ro-Bot-X

One of the guys in the robotics club I belong to (The Silicon Valley HomeBrew Robotics Club) wrote an article on using the Chumby as a robot controller. You can find it on his web site: http://www.demandperipherals.com/docs.html#howto. He said you can contact him if you have any questions. I also have a fair bit experience using the Chumby as the brains of my robots. Feel free to PM me.

I don't want to hijack this thread with posts about the Chumby, so let's start a new topic or exchange PMs.

--Osman

prof_jazz

Hi,

the 1 x Dual VNH2SP30 Motor Driver Carrier MD03A  (49,95$) on Pololu is out of stock till March...

Could You suggest a valid backup solution ?

The "Pololu Qik 2s12v10 Dual Serial Motor
Controller" (74,95$) http://www.pololu.com/catalog/product/1112 uses the same VNH2SP30 chip.

I have to drive the same Kas motors (Pololu Metal Gearmotor 37Dx52L mm with 64 CPR Encoder), Could You give me a feedback and more information?
I'll be happy to add  25$ if the "Pololu Qik 2s12v10 Dual Serial Motor Controller" will drive the above motors  with no difference.

will be the arduino code the same?

Thanks

Ro-Bot-X

#232
Jan 21, 2011, 11:25 pm Last Edit: Jan 22, 2011, 12:09 am by Ro-Bot-X Reason: 1
I'm wondering how well a Brushed Motor ESC could work with the balancing bot? They take a servo signal between 1000-2000us and convert it to linear throttle curve, forward, backward and programmable break (jumper ON=break, Off=coast). Here is a link for such a device: http://www.hobbyking.com/hobbyking/store/uh_viewItem.asp?idProduct=9090 It's just $5 for 20A! Of course, we need 2 of them, but they are cheaper than a 5 A dual motor driver...

Patrik

I think the problem with brush less motors is that they don't like low speeds where they will consume a lot amps..  
The balancing robot for dummies guide
http://www.x-firm.com/?page_id=145

Ro-Bot-X

Quote
I think the problem with brush less motors is that they don't like low speeds where they will consume a lot amps..


I was talking about Brushed motor ESC, not brush less...

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