8 ports MIDI to CV/Gate converter.

And now, the resumption of an old project for which I had not achieved the expected result.

I appreciate simple but effective designs. In this little game, however, I sometimes get fooled by choosing a component that meets the criteria of simplicity and functionality but which may present one or more small drawbacks that I think I can overcome with software.

Most of the time, this is the case. Sometimes, well, it fails miserably. In addition to wasting my time programming, sometimes I even have to abandon the concept altogether! This is the case for my previous version of this type of project.

All is never lost, you learn from your mistakes. And then we return to the subject, this time being careful not to fall into the traps typical of this kind of project. That's what I did here.

The image shown below is the second iteration of the basic concept. The previous prototype just served to validate my new concept.

This new study of a MIDI CV/Gate converter is more complicated than the previous version. There are more components. However, it's mostly 8 times the same type of CV and Gate outputs, with just the control processor. So, it's not very complicated actually.

However, I still improved the basic concept by allowing CV output of three types:
-5V ~ +5V; 0 ~ 5V; 0 ~ 10V.
Likewise, Gates outputs can be positive or negative.

I also added two potentiometers and two additional switches which will allow me to configure the device at a minimum. 

In fact, it's not a bad improvement. While I'm at it, I'm also switching from an ARM processor from STmicro to a RISC-V processor. I got used to these new processors pretty quickly. I have mastered them well and find them very practical to use.

The prototype was more condensed. This was not a good idea in my opinion because it did not allow practical handling of the device. The final version will therefore be larger

All that remains is to have the printed circuit manufactured and to test this new version.