Thanks MarkT,
Unfortunately, I'm more of a software guy than a hardware guy and you've basically lost me. There is a 3.3v output on the Uno board. Can I not use it directly?
Regarding communications with bi-directional serial - I thought the library from Martijn would handle it over a digital line providing that I choose the right register/address.
What is MISO MOSI?
Sorry for stupid questions and I appreciate your patience as this is a bit beyond my current skill set.
- Mark