Hello, i want to connect arduino uno to my raspberry pi , i found a good tutorial here http://www.doctormonk.com/2012/04/raspberry-pi-and-arduino.html
and i want to try it.
But before this , i want to know something... I have 2 sensors https://www.sparkfun.com/products/10167?
and the reason i want to make the 2 boards to communicate is for sharing the sensors measurements.
I have 2 software serial devices working right now, a gsm shield (pins 2,3) and an lcd (pin 4) , so can i send serial commands from the usb the same time ?
Finally I will use an external power supply of 12V for my arduino , connecting the 2 boards requires a usb cable , what if i use only 2 wires (green white) , the data wires, and cutting red/black (power) wires of the usb cable , it will work ?