Need help with wiring for RF remote dc motor

by Dsr122076 on Sun Feb 17, 2013 1:39 am

Hi guys. I am new to this. My main goal is to attach one or two motors to this rf unit. The purpose is to make a rf controlled snowplow for my RC car.
I have a winch to work the up and down.
I also have a 9v motor which I want to work the left and right motion.

The material I purchased are:
1 x Keyfob RF Remote Control - 315MHz[ID:1095] = $6.95
1 x Simple RF M4 Receiver - 315MHz Momentary Type[ID:1096] = $4.95

I want the a and b buttons to work the up and down of the winch and the C and D to work the left and right motion.

My question is, how do I go about wiring this up? Did I buy the wrong rf board? I think I should have purchased one with 4 relays in order to switch polarities. However, the damage is done, and I wonder if there is a way to wire the 9v motor and winch to this board to work as described above. Any help would be appreciated.
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Re: Need help with wiring for RF remote dc motor

by franklin97355 on Sun Feb 17, 2013 8:26 pm

this unit will allow you to send control signals to the car but will not have enough power to control the motors directly. You will need to use mosfets or motor controllers to get what you want.
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Re: Need help with wiring for RF remote dc motor

by Dsr122076 on Sun Feb 17, 2013 9:05 pm

The R/c car uses 5 channels already. I have no additional channels to control the plow. MY only option is to make only the plow be RF controlled. The motors are tiny, they are servos motors.
The only thing the rf unit will operate is the up and down motion and the side to side motion of a servo. not the car itself.
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Re: Need help with wiring for RF remote dc motor

by Dsr122076 on Sun Mar 03, 2013 5:07 pm

franklin97355 wrote:this unit will allow you to send control signals to the car but will not have enough power to control the motors directly. You will need to use mosfets or motor controllers to get what you want.

Like I said, I am a newb so I had to research for a bit. I finally understand what mosfets do and I thank you for pointing me in the right direction.
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Re: Need help with wiring for RF remote dc motor

by laptophead on Tue Sep 03, 2013 4:04 pm

I bought the Simple RF M4 Receiver - 315MHz Momentary Type -
ID: 1096 and it lights up the LEDs as advertised as I press down the ABCD on the remote unit.

Now when I feed that logical Hi on the Arduino pins , the system does not work. From a solid lit led I get an oscillation between HI Low, and I can not communicate to the arduino. Therefore the Keyfob system is useless unless I want to see LEDs lit from afar.

What to do? I am using the uno and for the input I use pins 2 3 4 and 5. If I feed those pins from the =5 V on the arduino board, the system works fine.

Thanks
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Re: Need help with wiring for RF remote dc motor

by adafruit_support_bill on Tue Sep 03, 2013 5:31 pm

Do you have the receiver ground connected to the Arduino ground? You need that for a common signal reference.
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Re: Need help with wiring for RF remote dc motor

by laptophead on Tue Sep 03, 2013 8:32 pm

* .004882814
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Re: Need help with wiring for RF remote dc motor

by laptophead on Tue Sep 03, 2013 8:33 pm

Yes, arduino and the receiver are fed from the same 5 V Power supply
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Re: Need help with wiring for RF remote dc motor

by adafruit_support_bill on Tue Sep 03, 2013 8:38 pm

Post a photo showing how you have everything connected.
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