Hello, im new into raspberry pi, i have looked a lot of videos then i have seen that i could modify one lapdock to make a easy and low cost mobile Rpi
About hdmi connection that is pretty easy, but the usb connection is kind of confusing me.
I need to conenct a usb cable to atrix then i should connect gnd and +5v to another end to power rpi via micro usb and the D+ and D- to a third end that go to normal usb.
That way my pi will work?
Edit: i find out that i was right, the +5V and gnd should go to micro usb end and the D+ and D- should be connected to standard USB end, so all i need is to do some continuity test on usb pins to find out which cable is connected to the pin and al should work.