It's all about the Software

Hello guys

I am building a MIDI VFO with rpi PICO and I send simpel note on and note off on 2 different notes
I can register them in SDR MIDI map se picture, but i can ONLY tune UP when I send TUNE down nothing happends

So i wonder what is actual needed in the MID command to get SDR to respon correct , It is strange becauase up counts works
maybe i miss someting in the command ?

73
Peter SM6NTR

I have found the problem even tho it was working on step up only.

I had used a Program change command 0x90 and that command does not have the second BYTE and that byte is probably mandatory
it fills ut the "value" in MIDI command list in SDR-Console setup so it must have index AND Value to work

So the solution is to send Control Change 0x80 instead that takes 2 argument Control value first byte and second byte another control value
that fills out the "Value" se picture

73
Peter SM6NTR