Yes, I did initially drive my 7300 with CI-V messages at 3.3v logic and they appeared to be fine. I later changed that to 5.0 v.

https://youtu.be/H7C8RfZZZRM

I’ve made some progress with my prototype - it now has two rotary encoders which can be assigned to Mode change, switch bands ( boundaries defined in the software ) and other VFO steps. Demo on youtub

Arduino nano EVERY. Can do Yaesu too. This video is more focused on the configuration than the operation. ahttps://youtu.be/u8pPKy762sg

I use either a mega 2560 ( with Ethernet shield ) or a nano EVERY on a custom PCB

Hi, I most frequently use polling ( “pull” ) as it is easier to process the reply data because the expected reply message ( arriving about 20ms later ) is known. I have included qite a bit of TX and R

Hi, I’ve been experimenting with CI-V for a few years, originally driven by my desire to add a few external buttons to IC 7300 ( and later my 8600 ), the project evolved to more than that. Here is a b