RFM69HW - can it work with a boardrino running at 8MHz?

[labusr]

The RFM59HW is connected to the Arduino via SPI.  Are there any changes needed to use the RFM59HW with a DIY breadboard Arduino running at 8MHz instead of 16MHz?

If I power a sensor node using three AA batteries, I'd get around 4.5V, but as the battery runs low, I might only get 3.8V from it, at which point a 16MHz Arduino might not run stable, especially if this is used outside where it gets hot.

[Felix]

I'm not sure if anyone can give a yes/no answer without trying exactly the scenario and conditions you are asking about, but my gut is the answer is yes.
3.8V at 16mHz is plenty. Moteinos run 3.3V at 16mhz without issues.

[dparson]

I can confirm the RM69C works great with an Arduino Pro-Mini 3.3V edition which runs at 8MHz.

[jra]

I am running a RFM69HW on a breadboard ATMega328p at 8MHz on 3.3v, no problems.  Haven't tried batteries yet but my goal is to run it on a pair of alkaline AA's.

[Spexx]

I have removed the voltage regulator from some of my Moteino clones and they are running with two alkaline AA's at 8 MHz without problems. I'm not sure which minimum voltage is needed for the RFM69-modul, but the RFM12B works down to approx. 2.4V.