Problem with circuitry

[rumiam]

Alright so I need to build a remote control car with forward/reverse capabilities. Slow, fast, and stop. steering and has to have working LED head lights and horn.

I also am required to build the control panel circuitry, transmission etc.

I am in need of help with this. I designed my diagrams so that it is circular with a wheel in the back which is horizontal -controls steering- and two wheels in the left and right of the car -for forward and reverse- and a free wheel up front for wieght distribution.

Now the problem i have is how am i going to wire of all this? we are allowed to use 3 motors im using one for the back wheel and a motor for each drive wheel.

Any ideas would help

 

[blueroomelectronics]

This appears to have three motors, horn, slow (not fast sorry) horn & lights probably not.
**broken link removed**

 

[gramo]

As mentioned in an earlier thread, the TLP/RLP could be a low cost RF option

Wiring Diagram for the receiver (PSU/Osc not shown):
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Wiring Diagram for the transmitter (PSU/Osc not shown):
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They are $6.9 each from www.futurlec.com

 

[rumiam]

So i have the transmission done on it and the body of it done. -drawn out i should say - And to put everything i need in this it will come out shaped like this

**broken link removed**

-No lie-

 

[blueroomelectronics]

Or this...
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[theinfamousbob]

Or this...
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Do I detect just a little sarcasm?

And rumiam, I'd rethink your drivetrain. It might be simpler to just use two motors in a differential or "tank style" turning configuration.

 

[rumiam]

Aye i know it would and i thought of doing that.

But 95% of the students who does this project Do it in a tank style...

Its old and not entertaining

 

[theinfamousbob]

You'll get extra drag off the wheel...

Maybe turn it into a plane landing-gear style and turn a modified caster?

 

[blueroomelectronics]

Ok here's "arobot" that steers like a forklift truck.
http://www.robotics.com/arobot/
**broken link removed**

 

[rumiam]

You'll get extra drag off the wheel...

Maybe turn it into a plane landing-gear style and turn a modified caster?

I thought about that. but the wheels we are using are plastic so it wont create as much friction.

Bear in mind that we have to build this out of scratch. I literally was handed a box full of motors tramision parts, gears. oh and a foam board

 

[bananasiong]

Wow, the way of turining using servo is so unique, I've never seen this before. Usually people just use one wheel to turn.

 

[Sceadwian]

That's because that's how forklifts turn, the drive wheels are in front, the rear will is spun in a single axis to turn. Gives them an incredible turning radius. The one we have at my work has two parallel wheels right against each other used as a single one. It's electric so the drive wheels are even driven tank style to increase the turning radius under load

 

[rumiam]

Ok it goes perfectly fine.

Question, I need to reverse polarity -for forward and backwards- as well as forawrd and reverse. I know how to do it but i cant remember at the moment

 

[blueroomelectronics]

The easiest way would be a DPDT relay or switch, depends on what's in the box your school gave you.

 

[rumiam]

we get acess to everything he has. which is pretty much every part u can use on a breadboard. ok next queston i have. i believe we are using a 6 volt motor. Anyway i can kick up the power -without bloing the motor- to make it spin faster?

 

[blueroomelectronics]

Well we here on the forums cannot see this box, so how can we suggest the best way to use the stuff in it?

 

[rumiam]

It isnt a box its pretty much. every component you could use. Everything. -except the extremely expensive things that dont really serve a purpose for this-
everything from leds, to resistors, Caps, Pots, Photo resistors,Diodes, beepers, speakers, a cap which is used in cars -Drains batteries very fast.- over 50 feet worth of wires. Everything you need. 555s etc.

 

[rumiam]

Crap problem..it spins out when it is given power. I can fix that, but what should u use to make police lights? -the flashing red and blue-

 

[bloody-orc]

before you start flashing any LED's you should get your robot done. you do know, that you need a lot of gears between your motor and the wheel right? DC motor spins 10 000- 20 000 rpm you know you need 50-100 rpm.
and I don't see any transistors or that stuff mentioned in your box contents... you need to build yourself an H- bridge (search Google for circuits). I would suggest you get a chip with ań H-bridge in it. makes your life a LOT easier.

if you want to flash those LED's so much use that: http://metku.net/index.html?path=mods/colorfade/index_eng

the best LED flasher i have ever seen.