Thank you. I've been digging into this further and I realize...I have a lot to learn still. I thought I could use the 3.3V output on the Uno and Nano, but the digital pins are still 5V. I don't want to fuss w/ additional circuitry, so I just bought some 3.3V Nano equivalents.
I soldered a few radios up and I'm ready to test them once I get the right microcontrollers in. I'm going to have the same problem with the ESP Wi-Fi chips I ordered. ...learning lessons stink. Hey, that's how we learn.
On that library you posted, I've been looking at it and wow, it is nice. I already downloaded it and removed the other library. 