Controlling 4WD Arduino Robot with Compass Assistance

Test out the new feature of Serial Monitor window on the Arduino Robot Joystick app using L293D motor driver by referring to this circuit diagram: goo.gl/vaJeDj and Arduino code: goo.gl/X1MEIR and additional reference pictures here: goo.gl/pvO4je. Make sure you use version 1.11 or higher of the app to use this new feature. The additional instruction on how to use the app for this project is attached in the given Arduino code in block comment form.
Build this robot yourself and play with the magic! Activate the compass assistance mode and point the robot's heading far from the set direction and see what happens. You will be amazed on how the robot responds to the misdirection it faces.
Joystick app on Google Play Full version (now equipped with Serial Monitor window which functions just like the Arduino IDE's Serial Monitor, but in mobile way, integrated with the app. Other than that it is also capable of producing omnidirectional 4WD output beside of omnidirectional 3WD or the 2WD/4WD differential drive and the raw X and Y joystick coordinates):
goo.gl/2oMk0S
Joystick app Free version:
goo.gl/CWynPX
Joystick app Lite version:
goo.gl/xHtnZb
Joystick app Lite Free version:
goo.gl/58zAtg
BT Serial Monitor:
goo.gl/1lW49f
BT Serial Terminal:
goo.gl/Nqg7rx
Thanks!

Hey, great stuff!

[@nudgeme4844]

Thanks!

[@minhminh5008]

I want control car depend on compass, that mean that car will go only the one diection.

[@labibahmedtonmoy2247]

do you have any Bluetooth application for mecanum wheel and do you have code for those??

[@willyu8713]

Im trying to build this as a project, is it possible if you can send me the code for this. I can't open it.

[@risnarusdiyanti7878]

I cant find relation between compas sensor and car movment in This video

[@nudgeme4844]

Yes, I forgot to show what will happen when we turn the car to the other way, activate the compass and let the car move. The car actually would responsively turn to correct way when it was moving. My apologies.