I had some limited success with a sketch I found uploaded by Robert Wall https://community.openenergymonitor.org/t/rfm69cw-to-code/825/6
in Klause.zip. The code successfully initialized the RFM69 and sent formatted packets to EmonCMS.
Can anyone give me a hint as to why I cannot get this to work using the Jeelibs library? Is it possible that the code is not compatible with an Arduino Mega 2560? If so, is there anywhere I should try to modify the library files to make this work? Thanks!