2 RFM12B one to arduino and one to sanguino

Hookup = the problem probably 95% of the time, when things aren't working.

  1. you ALWAYS need to check that the power source [LM317] is working and setup correctly
    BEFORE connecting it to anything else.

  2. there is no way I can see to tell if you've fried your radio, except by getting it to work.
    If it works, then it's good. If it doesn't work, then you're still are square-1, and still don't
    know whether:

a. the hookup is wrong.
b. the software is wrong.
c. the radio is bad.