Hi, this is my first arduino project.
I`ve bought: - Arduino UNO Rev3 - Arduino Motor Shield Rev3 - Kysan 1124090 Nema 17 Stepper Motor (stepper motor from Arduino shop)
I`m trying to build turntable for 3d scanning.
I want connect it through USB to Windows 8.1 x64 PC. My soft after scanning is virtually pressing some key from keyboard ("Z") to show that it is ready for next scanning.
I want to Arduino listen for key event ("z" key) to start movement for few steps and next stop to wait for next key event.
I`ve seen few tutorials and I think I am ready to do it :)
I have problem with that stepper motor and power supply. It`s 4,2V (http://store.arduino.cc/product/MK00742) and my Arduino will be continuously connected through USB (USB has got own power supply) to listen for key event.
Which voltage power supply I should buy to not fry my PC. I will connect power supply to Motor Shield and Arduino will be powered from USB. Is that correct? Is it allowed to connect power supply by 2,1 mm jack on Arduino board with USB connected. What if I will connect 12V? Will I need 12V for that stepper motor? Will I fry my PC with 12V? I wanted to buy power supply 1A-2A 12V with 2,1mm plug. It would be needed for my future arduino project but I think it`s better for this project buy power supply without plug (naked wires) 5V and connect it only to motor shield to not fry my PC. Which option will be better?
Any help will be appreciated.