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-   -   Controlling an ESC without a Reciever (https://www.rctech.net/forum/radio-electronics/797482-controlling-esc-without-reciever.html)

Zardichar 03-03-2014 05:33 PM

Controlling an ESC without a Reciever
 
Hi all,
I figured that this forum would be the best place to ask this:

How would I go about being able to control a brushless motor with only its 100% on/off function without using a wireless reciever? Is there a way to connect the ESC directly to a switch that would turn it on and off? Would there be a special type of ESC for this?

I saw in a video of a guy controlling a brushless motor with only a dial, but I can't seem to find that video again. Perhaps one of you knows what device I am talking about?

Thank you so much!

asc6000 03-03-2014 05:39 PM


Originally Posted by Zardichar (Post 13062222)
Hi all,
I figured that this forum would be the best place to ask this:

How would I go about being able to control a brushless motor with only its 100% on/off function without using a wireless reciever? Is there a way to connect the ESC directly to a switch that would turn it on and off? Would there be a special type of ESC for this?

I saw in a video of a guy controlling a brushless motor with only a dial, but I can't seem to find that video again. Perhaps one of you knows what device I am talking about?

Thank you so much!

That "dial" could be a simple potentiometer with no need for an electronic controller. Assuming a 1950's technology pot will work on a brushless.

Dave H 03-03-2014 05:50 PM

Sounds like you are looking for a servo tester, or a servo programmer, sometimes called a servo driver. They can control an ESC like a RC radio system does.

A few examples, there are others but I can't seem to find them right now:

Servo Programmers


Note it takes more than just a potentiometer to control a brushless motor, as something needs to do the phase/commutation switching required. A brushless ESC or controller performs this function. Also a pot is generally significantly limited in the amount of power it can control.

mtpocketsracing 03-03-2014 06:04 PM

Brushless motors use ac current. So hooking it up to a battery and a switch is a no go. Unlike a brushed motor can.

Dave H 03-03-2014 06:08 PM

In a sense for RC brushless, yes. Certainly not straight DC current.

Zardichar 03-03-2014 06:17 PM


Originally Posted by Dave H (Post 13062295)
Sounds like you are looking for a servo tester, or a servo programmer, sometimes called a servo driver. They can control an ESC like a RC radio system does.

A few examples, there are others but I can't seem to find them right now:


Note it takes more than just a potentiometer to control a brushless motor, as something needs to do the phase/commutation switching required. A brushless ESC or controller performs this function. Also a pot is generally significantly limited in the amount of power it can control.

Thanks! That was exactly what I was looking for!

Dave H 03-03-2014 06:20 PM


Originally Posted by Zardichar (Post 13062395)
Thanks! That was exactly what I was looking for!

No problem. Actually I think I put up a limited link. There are more on the same site:

Servo Controllers

davidwills 03-03-2014 07:49 PM

How to control the vehicle, if there was no receiver.


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