This project can help you measure the speed, distance and angle of the robot.
Project tutorial by Deion Adel
This is a simple tutorial to create an EMF detector using an ATtiny85 microcontroller.
Project tutorial by Giovanni Gentile
If you want use two Arduino, you can use a simple I/O port to communicate. The point of question is the Ground.
by Giovanni Gentile
Learn how to submit your Arduino-based project. It may even get featured on the Arduino social channels!
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