A step by step instructable on how to take any R/C car and control it with your computer

Step 1: Overview

my friend leslie got me a radio controlled rat, so I decided to make a computer interface for it (because I'm a huge dork)
This instructable shows how to hack up an R/C car and connect it to your computer. I made a web interface for mine so that my mom could drive a little car around my room from north carolina (I'm in boston), using a webcam to watch it.
This is pretty fun project, takes about an hour to solder up, and if you can make toys computer controlled, you'll uh.....have lots of friends
Also, I'm writing an instructable on using an R/C car to make a digital radio link. Stay tuned, amigos.
<p>how do i hook it in to my computer</p>
this is the coolest ible.
man you are a genius
hi make this circuit but one problem occurred car is going automatically without pressing any key although i code it which is fine ...now any idea??????????????
where do i find these chips<br>
is there any easy way to control rc car by pc<br>
why dont you just get one of those big track cars and make the control pannle wierless sory about my bad spelling
As I'm searching I'm finding that most of you are extremely smat and very good at what you do. I have a dilemma involving R/C as well. I'm trying to build a 48 channel fireworks ignitor. As it stands it's almost complete but it's not wireless. Right now I have to plug a cord into an RCA jck on the board and the other end is connected to an electric match. I got all that. What I need help with is making this an optional &quot;wireless&quot; unit so I can stand back withmy guests at my party and ignite my fireworks from a few feet away. The problem is that the biggest R/F transmitter / receiver I found was only 15 cannels, and it was expensive enough that it wouldn't be cost effective to buy 3 of them plus and additional 3 or 4 channel to build it. I'm extremely limited on experience with eectronics and have no experience with IC's but I'm willing to learn if someone can pont me in the right direction. Thanks.
Hey guys the best and easiest way to control something with your pc is by using a phidget.....just connect two wires to each button as written in this instructable but no need for checking power or ground .....connect the wires to the relays in the phidget and connect the phidget to your pc via the usb cable that is usually supplied with the phidget....i would have already made one but i couldnt find phidget....they are not available in my city....you can buy one at computer stores....the programming is easy although i dont know how to do it.... a friend of mine who is a computer genius(i wouldnt call him a geek....which most people will) told me it is easy and told me when you are done with the hadware work inform me and i will help you with the programming......really people once you use a phidget you will forget that something named serial port ever existed......you can find phidgets with minimum 4 and maximum (i think more than)10 relays.....
It is really good and i have been trying to do this but i cant find all the stuff, i dont understand the schematic pics and i am not very good at computer especially programming so i cant make it right.I will keep trying.And once again FANTASTIC
ooops!its hard to get those resources in where i live. can i get the requirements in old electronics????? pliz help <br> <br>
excuse me please give me instructions on this whole project
would a max222 chip work?
i have the same idea as this, so can write a software program to control the car wirelessly please reply
Nice Work! have you tried it with this type of controller. i am very well looking forward to controlling a rc car with my pc Great work again.
&nbsp;hello my name rob can you tell me how much it will be to do this&nbsp;
can this project be done with a arduino<br />
cool.. i like it dude....
Fear and loathing in las vegas!!! I win
cool insructable!
I'm a beginner when it comes to things like this. I could use some more detailed help and making a kit for this would be great!
hhaha WO too much tech for my brain. but i can see how someone who really wanted to do this could..i was just skimming it. but nice
>(how much for the ape?) (anybody get that reference? somebody? please????) Are you referencing the cartoon with the ape that lived in a pet shop?
no! nyet! non! bu!
is it a brass monkey
its a brass monkey. right?
will this by any chance damage my motherboard or paraller port?
This is very cool! It would be even better if you applied this to a full-sized car!!!
You could always use this software from here<a rel="nofollow" href="http://www.kemo-electronic.de/en/bausaetze/b210/index.htm">here</a>.If using windows download ksi8 winall.exe for windows.It is designed for a relay board which they sell but I use it for my LED grid.It uses the parallel port on a computer or laptop.<br/>
Nice work...Can we control this using my joystick...How...?
sir i have already read your tutorial and i very interested so i change your cujo program so it become like this<br/>===================================<br/>#include &lt;avr/io.h&gt;<br/>#include &lt;inttypes.h&gt;<br/>#include &lt;avr/interrupt.h&gt;<br/>#include &lt;avr/signal.h&gt;<br/><br/>uint8_t buffer[256];<br/>uint8_t head=0;<br/>uint8_t tail=0;<br/><br/>unsigned char noids[16];<br/>unsigned char noids_index;<br/>unsigned char flop;<br/><br/>char a;<br/>char sel;<br/>char o1;<br/><br/>void usart_putc(unsigned char c) {<br/> // wait until UDR ready<br/> //while(!(UCSR0A &amp; (1 &lt;&lt; UDRE0)));<br/> UDR = c; // send character<br/>}<br/><br/>void delay(int del)<br/>{<br/> int del1, del2, count;<br/> for(count=0;count&lt;del;count++)<br/> for(del1=0;del1&lt;20;del1++)<br/> for(del2=0;del2&lt;1000;del2++)<br/> ;<br/>}<br/><br/>void uart_init()<br/>{<br/> UCSRA = (1&lt;&lt;RXC);<br/> UCSRB = (1&lt;&lt;RXEN) | (1&lt;&lt;TXEN) | (1&lt;&lt;RXCIE);<br/> UCSRC = (3&lt;&lt;UCSZ0);<br/> UBRRH = 0;<br/> UBRRL = 12; //4800 8n1<br/>}<br/><br/>SIGNAL(SIG_USART_RECV){<br/> a=UDR;<br/> PORTB=a;<br/> usart_putc(a+1);<br/>}<br/><br/>int<br/>main (void)<br/>{<br/> uart_init();<br/> sei();<br/> DDRB=255;<br/> DDRC=255;<br/> DDRD=255; <br/> while(1)<br/> {<br/><br/> }<br/><br/> return (0);<br/>}<br/>==============================================<br/>i just want to ask your opinion about this code will it run in atmega32 because in my country i only can find this and i cant buy from digikey because i dont have any credit card<br/>thanks<br/>please reply me as soon as possible<br/><br/>
You have to watch yourself out here. This is bat country.
Can't believe nobody got that...
Does anyone know how to access the address and data bus from vb6? i used to be a computer genius in the days of quickbasic and vb3, it was inp and outp but now vb6 and vb.net make it difficult. (fear and loathing btw). all i want is to read from and write to adresses from vb6 or vb.net without going back for my masters and re-inventing the wheel. Irecently move out of my mothers basement and I even kissed a girl once so don't think i'm a dork or anything.
What address and data bus? IF you mean the parallel port, then go to <a rel="nofollow" href="http://logix4u.net/,">http://logix4u.net/,</a> and download their &quot;inpout&quot; dll.<br/>
Any chance you could do this with an Xmod?
xmods rock! i got the new evolution line and they are soo much better. ive spent like 400 bucks total on all of my 3 xmods!
what's an xmod?
radio shack's own little r/c car line
Your photos are too dark to see much of anything. You need more light when taking those pictures.
What is an AVR burner anyways?
AVRs are a computer-on-a-chip made by Atmel. AVR burners are devices you use to transfer a program from your computer to the chip.
So, how do u do this without one (or with parallel instead of serial)
well, in this case, I'm just using the micro as a serial-to-parallel converter. You could just wire the circuit to your parallel port and use the parallel port pins instead of the micro pins to drive the transistors. I'd encourage you to play with micros, though. It's not too expensive to get into ($20 for an avr burner and $1.50 for a micro), it's not too difficult to learn, and knowing microcontrollers makes playing with electronics wonderful. If you want an easy way to get into avrs, ask for an STK500 ($80 from digikey.com) for christmanukkwanza, and you'll have a great development board to try out new ideas on
excuse me i want to ask at my country i cannot find <strong>atmega48</strong> can i replace it with <strong>atmega32</strong><br/>if it can does i need to modfy your program??<br/>please pm me or send me some message at gusman_adi@yahoo.com<br/>
Well, first off, you can get mega48s from digikey.com, and they should ship internationally. But yes, you can replace it with a mega32 (although it's about 4 times more expensive). You'll need to change the micro code around a bit. To be honest, if you're gonna make changes, the simplest thing to do is just to use the parallel port on your computer--all the micro is doing is converting serial to parallel, and if the micro is holding you back, just ditch it and use the parallel port directly, maybe with a buffer chip in between the port and the transistors to make sure you don't fry your computer's parallel port.

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