Solidarity to Italy project
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Today I just wanted to share a solidarity project to my country, my home.
I realized a simple circuit with Raspberry PI board and Arduino based board, lighting together 6 LEDs composing Italian Flag.
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Please find below wiring schema. No coding needed because we use direct 5V and ground pins both in Raspberry PI and Arduino. Raspberry PI needs only a working OS like Raspberry PI OS Lite or Raspberry PI OS Desktop.

Enjoy!