Servo wiring question.

[Jamus]

This may be a hard one to answer, or may belong in newbie section since it involves non hobby grade components. If so, sorry.

This involves the Radioshack RC, basically the same vehicle they sell now as a Hummer H2 with tracks. I've seen a few on here post that they have one or more of them. Anyway, the electronics are digitally proportional and I wanted to add them to my other toy, a Nylint. I want to run real servos and have a problem with the wiring. The stock wiring has 6 wires. 3 to the actual servo motor, bleu, yellow, and green. Then the other 3 are to some kind of position sensor, red, brown, and orange. Wiring a servo up to the 2 servo wires and leaving the 3 sensor wires loose doesn't work. The servo steers to one side till it hits the stop. Any ideas?

 

[JohnRobHolmes]

the control board for the servo is part of the receiver board. There really is no good way of moving it to another vehicle. You would be better off getting hobby grade stuff if you plan on swapping parts around. That way they are all standard and they work together.

 

[Jamus]

Well, thanks anyways. I doubt I'll waste good electronics on a nylint. Keep everything matched, hobby grade to hobby grade, toy to toy. Just figured I could make my Nylint a lil better with parts I had. I had it all working, with the servo from the radioshack car. That servo wasn't strong enough though. Oh well.

 

[JohnRobHolmes]

i have seen plenty of hobby grade servos on nylints. big power is what you really need for any crawler. Too bad that servo didnt work though, using parts you already have is pretty cool.

 

[Jamus]

Well, I got to messing around with it and got it figured out. I put a potentiometer on those other 3 extra wires, turned it all the way up, and it works now. I guess without a signal from the pot, it was thinking the servo was steered all the way to one direction and was trying to recenter it. Oh well, one step closer to my junk parts proportional controls.

 

[JohnRobHolmes]

thats pretty cool man. You have gotten much farther than I would have. I am not good with some electronics (lack of patience)

 

[Crawlin_aussie]

are you thinking about giving seperate power to the motor and servo.

 

[Jamus]

Not sure what you mean. But I'm back to square one. Had it working with the wiring strung out all over. When I went to put it all on the truck, something happened. Haven't tracked the problem down yet. I'm getting over 5V to steer one direction and less than 1V the other direction.

 

[Crawlin_aussie]

don't worry answer my own question. i will be getting my new servo in the next couple of week hopefull you will have it running well and you can tell me what is wrong