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Old Nov 30, 2014, 02:51 PM
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Control of DC motor?

Hi all,
I am in the process of designing a miniature jumping robot. To compress a spring we are using a dc motor combined with alot of gearing!! The act of turning the motor on starts the spring compression and at max compression it releases automatically.

I am asking what is the best way to turn on the motor remotely? I really only want to create a remote controlled switch...the catch being it has to be all powered off a single battery and be as small and light as possible.

At the moment I have a spektrum DX6i TX and RX, which I was hoping to use, but could consider other possible Rx components.

I suppose I am seeking help so as to create an elegant solution... I appreciate all input.

I hope this is in order and appropriate.

Thanks in advance

Regards

Johnny Paterson
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Old Nov 30, 2014, 03:24 PM
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Pontefract, Yorkshire, UK
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http://www.hobbyking.com/hobbyking/s...USHED_ESC.html
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Old Nov 30, 2014, 04:30 PM
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Hi, Thanks....I think you misunderstand...I am really trying to create a radio controlled switch. I only want to supply a brushed motor with power so it runs at a certain speed, no control of speed is needed.. I also would like the solution to be as small and light as possible
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Old Nov 30, 2014, 04:45 PM
Who let the dogs out?
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Pontefract, Yorkshire, UK
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How about one of these ? http://www.hobbytronics.co.uk/pololu...mall-mosfet-v2
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Old Dec 01, 2014, 03:30 AM
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Thanks very much, That looks like the perfect thing. I suppose I now have another question.

The rc switch board can be powered from the Rx ( easiest option) but is there a way of powering the load(DC brushed motor @6v) and the Rx off the same battery, say a 2s Lipo?

I hope this is in order.

Regards

Johnny P
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Old Dec 01, 2014, 04:32 AM
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United States, MN, Hermantown
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It may depend on how many amps?

Maybe something like this-- http://www.castlecreations.com/products/ccbec.html
or similar
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Old Dec 03, 2014, 04:21 AM
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Thanks all....we have changed the design to use a different motor so I have solved the problem
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