invader7:
In order to get 3.6V and 2.2V i will use some kind of regulator or another 2 different power supplies ? THANKS !
The product page for the Cellular Shield says it's 3.8V and it has its own regulator.
For 2.2V...just don't go down that road. Read one of the many threads on LED voltage/current for how to power LEDs correctly.