It was declared--by Jack, I think--sometime ago, and I believe mentioned in the Arduino Nano programming instructions that come with Farrukh's PCB board, that the older IDE (rev.1.165) is used because I2C displays didn't play or weren't available in library when used with the newer IDE.?
I'm a arduee newbie, but suspect there are advantages in using the upgraded IDE. Perhaps the libraries aren't complete for the latest rev or not correct for the specific display used for the Nano DDS. ?
Still trying to get my transmitter to stay on...
...Jim, AB1BR