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Topic: Micro brushless outrunner (Read 1 time) previous topic - next topic

BN.barak

Hello,
I have some problems runnig up some motor.
I have 2:
http://www.dealextreme.com/details.dx/sku.20080
and
http://www.dealextreme.com/details.dx/sku.45731

They all need ESC.
I tryed connect the + and the - to 5v, didnt went so good.
What to do with those motors?

BTW, I got l293.

Thank you.

PaulS

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They all need ESC.

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What to do with those motors?

That's really pretty obvious, isn't it?

BN.barak

I will ask this.
How can I build this ESC, and what is it do?
Is it like a normal PWM generator?
The motor has 3 wires, red,black and yellow.
Why cant I just plug the red and black to +5v?

PaulS

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Why cant I just plug the red and black to +5v?

From the first link:
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Maximum current: 20A

Your Arduino pin will be damaged when you connect something that pulls more than 40mA to it. 20A is 500 times too large.

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How can I build this ESC, and what is it do?

Have you googled Electronic Speed Controllers?

BN.barak

I connected it to an external power source(computer power supply).
I googled for esc and couldnt find nothing.

Is there any diffrent between normal motor controll and the r/c esc?

mowcius

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and couldnt find nothing.

so you found something.

If you put RC ESC into google you get roughly 2230000 results...

You need an ESC.
You will not have the knowledge required to make one.
You need to buy one.
You need to buy one that provides enough current for the motors you have (20A).
You can then control it via pulses (using the servo library).

Please go and look all this up. You will find all the info you require.

Mowcius

vinceherman

From the same site your motors are listed on:

http://www.dealextreme.com/details.dx/sku.11980
http://www.dealextreme.com/details.dx/sku.11981

Input voltage 6-12v
I would go for the 30A version.

Then, from your Arduino, you talk to the ESC using the servo library.

BN.barak

#7
Oct 11, 2010, 04:32 pm Last Edit: Oct 11, 2010, 04:34 pm by BN.barak Reason: 1
Thank you vinceherman,
you were the first one to help me and talk nice.

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