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Old Dec 05, 2012, 01:29 PM
Registered User
United States, MD, Ellicott City
Joined Feb 2010
206 Posts
Discussion
Nano-Tricopter

I would like to take a FC Board from a hubsan x4, or mqx and since they have 328 or 168 chips flash it to be a tri. So the issue I have is how to get the brushed motor signal out of one of the ports into a servo signal for the tail rotor. Any Ideas?
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Old Dec 05, 2012, 03:37 PM
AVR Dude
United Kingdom, England, Cnwll
Joined Jul 2011
1,694 Posts
Quote:
Originally Posted by MIDNCOCO View Post
I would like to take a FC Board from a hubsan x4, or mqx and since they have 328 or 168 chips flash it to be a tri. So the issue I have is how to get the brushed motor signal out of one of the ports into a servo signal for the tail rotor. Any Ideas?
You could try a brushed to brushless converter such as thesteve

http://thesteve.ca/walkera/
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Old Dec 06, 2012, 12:01 AM
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Joined Aug 2008
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I'm not sure you will find those boards any use for what you want to achieve. The mqx I would be sure won't allow reprogramming, the cheapie boards like hubsan, 929 etc, I don't know whether those would be locked, but probably.
But if you find one that isn't and want to try it, you can tap a signal from the gate of a fet, you might need to scope it and see what it looks like though.
I too have been thinking about a nano tri for a few weeks now, but only at the "prove the concept on paper" stage, but not with a board from a cheap quad.
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