Explore secondary features of the Arduino Web Editor and become a pro using it.
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
Coming from Codebender? Good news, you can move all your work in a few simple steps!
Arduino recently launched support for programming ARM-based SBCs using the Arduino web editor, and Raspberry Pi is one of those SBCs.
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