I've followed what I've found so far regarding installing a second Arduino Nano to a uBitx, flashing that with i2c firmware, and getting it to band-scan and provide S-meter operation.? There are three items for which I've not found information and hope someone here can add to the experience.
1. I followed the basic option of keeping the TFT screen wired to the original Raduino Nano while placing a second Nano powered in parallel and the i2c connections paralleled/wired together.? I notice that there is a "stand-alone" option for hooking up the TFT screen between both Nanos in a loop fashion, presumably (I'm asking if this is so...) in order to play with these analysers and stuff without it affecting the radio frequency settings as it can now,?? So: Is that in fact what the "stand-alone" feature is?? I will try it, of course, though the way other people get the most out of the experience interests me.
2. I don't see Morse decode operations going; maybe the stand-alone has to be wired for that feature to work?? How do we make CW decode work on this screen and firmware, for educational value & show-and-tell purposes?? Well, I might actually use it myself a little, but mainly it's a feature it's supposed to do and it isn't doing it.
3. Somewhere along the searches and readings, I saw a spectrum display in the lower left where it's normally occupied with a menu square, the pressing of which takes one to a page containing the several operational menus. That would be interesting to see while operating normally and I suspect this is just another regular feature of either the original CEC firmware that I'm missing, or a feature of the i2c/second Nano paradigm that's not yet unlocked or discovered here.
73,
Ted
K3RTA
Ted