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Motor "Switch"? for Custom brushed motor

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Posted · Original PosterOP

I have a FlySky 6ch transmitter and receiver for an RC boat that I am renewing. Last year, I built it but the rudder actuator broke in the middle of the lake and I could not swim in it as it was infested with leaches and I didn't have salt or a towel. (I bike to the lake) I left it over night and got it in the morning. 

This time I am upgrading it with water cooling. I am going to do a DIY pump from a little brushed motor I have had sitting around for a while. I want to be able to power it from my receiver, but I would also like to be able to toggle the motor. Is there a good way to do this? I am not sure what channel I will connect it to, just as long as I can bind a switch to it (probably ch5). 

Thanks for anyone who helps, it means alot to me!

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Posted · Original PosterOP
17 minutes ago, James Evens said:

Assuming the motor only takes DC use a mosfet to turn it on and off. 

Do you think you can link one?

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Okay - water cooling a boat, awesome - BUT... 


1. I don't really think this is necessary. Awesome, but I think you could get by with air cooling if its a problem. 

2. Point #1 aside, be aware that small pumps don't often tolerate grit/mud/silt very well. You should filter your intake. 

3. If you have/know someone with a 3D printer, you can build something like this: https://www.instructables.com/id/3D-Print-Make-Servo-Controlled-Valves/ - this would just use one of your RC channels to control the servo for flow on/off. But again, just cool with air in my opinion and leave it constantly on. 


Update us with pics! 

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You want an RC controlled switch, like 





Many RC manufacturers have similar things.


That or a simple brushed motor ESC.

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