RC Car Hacked to make Remote

I hacked an remote-less RC car to make a remote for it.

Bolan Xu

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Description
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Files 2
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Components 3
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Instructions 0
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Description

I found a RC car sitting in my basement for a few years now and I wanted to play with it. Problem was... its remote was lost. But with some hardware circuit hacking/debugging, I managed to get it to spin. Look at the linked Youtube video for more details. This is still an ongoing projects as right now the remote is still on a prototype breadboard. I would like to maybe 3D print an enclosure and complete it.

Files

rc_car_tx.ino The arduino code for the transmitter. ino - 625.00 bytes - 01/04/2026 at 23:51		Download
rc_car_rx.ino The arduino code for the receiver ino - 2.46 kB - 01/04/2026 at 23:50		Download

Components

2 × Arduino Uno Two brains for the transmitter and receiver
1 × 315Mhz RF Transmitter and Receiver Module Pair https://www.amazon.com/HiLetgo-Transmitter-Receiver-Arduino-Raspberry/dp/B00LNADJS6
2 × Potentiometers One to control steering and the other to control speed

Project Logs

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Current Issues with RC Car built-in H-Bridge
Bolan Xu • 2 days ago • 0 comments

Hello,

This project is not yet finished because I notice some issues with the current draw of the motors (as stated at the end of my video). I suspect this is from the H-Bridge because I don't think I am controlling it in the most efficient way (If you have any thoughts, please comment below). I plan to create my own H-Bridge replacing the PCB on the RC car, and additionally replacing the Arduino Unos with more smaller permanent microcontrollers like maybe Attiny's or 8051-variants.