BigTrak reborn


BigTrak reborn, driving it outdoor.

Two components to this project

  • User interface, the iPhone/iPodTouch/iPad and Spectrum Analyzer Shield
  • Drive train interface, Arduino Uno and the RC car

1 – User interface

We want to use the Spectrum Analyzer Shield to process Audio signal that’s
generated from the RealSmartz App. First obtain a male to male AUX cable. Plug
one end to the input jack of the shield and the other to the Apple device. For
the newer Apple device you need to obtain an extension cable. Next, launch
the RealSmartz App.

2 – Drive train interface

Attach the Spectrum Analyzer Shield to the Arduino Uno and pwm pin 3 to Servo
and 5 to ESC of the RC car. First make sure the pins line up correctly between
the Spectrum Analyzer Shield and Arduino Uno. Push down with slight pressure and the
two parts should fuse into one unit. Next, connect the power of the servo to v3
and ground of the Arduino.

✅ Putting everything together

Upload and modify the driveTrainArduino/driveTrainArduino.ino to the Arduino and test everything out.
The Servo and ESC value is specific to your RC car and may not be the same.



Test it out on the field

Added a few GPS instructions on RealSmartz App. The RC car should be able to
drive towards the GPS way points. If your RC Car is behaving incorrectly. Give
your iPhone a call. It will stop the Car at its track.

Leave a Reply

Fill in your details below or click an icon to log in: Logo

You are commenting using your account. Log Out /  Change )

Google photo

You are commenting using your Google account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.

%d bloggers like this: