I bought a GSM/GPRS and GPS expansion, but it seem it lacked details.
http://www.open-electronics.org/a-gsmgprs-gps-expansion-shield-for-raspberry-pi/
The voltage was not specified, so I assumed one of the USB output can serve as the VCC (~5V).
The number of pins on the Raspberry Pi 2 does not match the pins of the shield. Any body know which pi pin should match the expansion pin?
Thanks in advance.