All you need :
-Old rc car
-Transmitter and receiver 433mhz
-Joystick or Pc
*Cutting motor wires
* Place arduino on the car also and batteries and breadboard with L293D and Receiver
Connect arduino with L293D and receiver and connect the power
On the picture are only few connections ...
Step 4: Last Step
Take other arduino connect your joystick and transmitter
In this video i control car using pc without joystick
Step 6: Download Code
You will need RCSwitch library you can download from this link : https://rc-switch.googlecode.com/files/RCSwitch.zi...
with this arduino code you can control using joystick
If you need code to control using pc post comment or send me message.