RFM69 Wiring

[raul.abraham1]

Hi, I'm new to the RFM69H and I'm trying to connect it to an arduino pro mini. I saw this link and wire it as it says: http://www.airspayce.com/mikem/arduino/RF69/
In the RFM69 arduino examples I used "Node" inside the sketch I changed the led pin to 13 and the flash ss pin to 10.
It seems that it randomly starts, but its not reliable, i se two ground pins in the rfm69 do I have to connect both to ground?  Or just one?
Also in this line "SPIFlash flash(FLASH_SS, 0xEF30);" what do I have to put instead of 0xEF30, since its not a Moteino,  if I put "LOW" it seems to allocate the flash memory is this ok?

[Felix]

You will need to ensure your Arduino is 3.3V for all lines connected to the RFM69 and also that the regulator on that board can supply up to 130mA of current to the module.
This forum is generally reserved for questions on RFM69 library and LowPowerLab hardware, which we are familiar with. However there are multiple threads in this forum discussing the wiring of RFM69 modules to other types of Arduinos (UNO, Mini etc) so your questions might already be answered.
Please forward any questions on the RadioHead library to their forum/support email.