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operats brushless motor without reciver - 1/16/2013 12:38 AM   
bazukamen


 

Posts: 1
Score: 100
Joined: 1/15/2013
Last Login: 2/3/2013
From: h, ISRAEL
Status: offline 		this artical is for members that want to operat brushless motor without radio reciver i connected the radio reciver to a scop and i found that the reciver send to the esc constantly frequncy of 50 hz it's means 50 cycle per sec. evry cycle start with 1mili sec positive puls   (+ 5v ) and 19 mili sec negative puls (0 v = grd ) total 20 ms per cycle. in this position the motor stell stand but the esc stop the beep sound. so the esc knows   that there is a reciver connected to him.while you operat the throtle on the remote control the frequncy stay the same but the positive puls in the cycle go biger and bigger to the maximum of 2 mili sec per cycle.in this situation the motor turns on the maximum speed so all you are need to do is to build a devaice that give you 50 hz with duty cycle changed with potentiometer from 1 ms to 2ms .this cirquit can be build with 1x potentiometer 10k +4x resistor 147 ohm 1x capasitor 10uf 25v and 1x timer 555. all this parts can buy at every electronics store at very very low cost  for the wiring diagram pls sent me post to email i hope i help you. this cirquit operate at all esc and operate the brushles motor acording the volum on the potentiometer i design it and its work .       

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RE: operats brushless motor without reciver - 1/16/2013 10:50 AM   
Foxy



Posts: 17189
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From: Kingston UK, but living in Athens, GREECE
Status: online 		Interesting.

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RE: operats brushless motor without reciver - 1/17/2013 4:34 AM   
SyCo_VeNoM



Posts: 10680
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Joined: 7/3/2007
Last Login: 5/24/2013
From: chicago, IL, USA
Status: offline 		here's a schematic I found ages ago that does what you said
I was planning on making it for something, I honestly forgot what as I only remember abandoning the project in the early planning phase where I was seeing if it was doable.

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