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: https://goo.gl/vaJeDj and Arduino code: https://goo.gl/X1MEIR and additional reference pictures here: https://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):
https://goo.gl/2oMk0S

Joystick app Free version:
https://goo.gl/CWynPX

Joystick app Lite version:
https://goo.gl/xHtnZb

Joystick app Lite Free version:
https://goo.gl/58zAtg

BT Serial Monitor:
https://goo.gl/1lW49f

BT Serial Terminal:
https://goo.gl/Nqg7rx

Thanks!

, https://i.ytimg.com/vi/9c2HvJDNboE/hqdefault.jpg

source