Is it safe to use 5V and 12V with common ground? (very beginner) - General Electronics - Arduino Forum

Hi all, this is my first post here, and my second day with Arduino and with electronics, so I'm really a beginner, also not a native english speaker (let me know if something doesn't make any sense). I tried to do my best to share my thoughts and ask the correct questions, but I'm sure I made some huge mistakes, please excuse me. This is my "Hello World" project, I have: An Arduino Due A biploar stepper motor from a DVD driver An Easy Driver stepper motor driver (v4.2) A TowerPro 9g micro se

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