# Prerequisites #

## The piio command ##
Using the piio command requires root permissions.

## The twowire command ##
For the twowire command, i2c functionality must be enabled on the Raspberry Pi:

- Unblacklist i2c-bcm2708 in by putting
a # in front of the line
- Enable i2c-dev by adding it in
- Add the user to the i2c group using the command: `sudo usermod -aG i2c pi`