Automatic Voltage Select

[Ancyker]

Been working on this a bit, but almost ready. Just need to finish designing the PCB now.

https://youtube.com/shorts/Uz5B7tNjIh4

With this modification, voltage is selected by the software/code.

[Ancyker]

I've moved it to a perfboard, looks a lot simpler now...

It does replace the power LED though.

[sanni]

Great work. 👍
Even seems small enough to be used as a drop-in replacement for the switch without the need to remake the main PCB.

[Ancyker]

PR #730 will put support for this on the main PCB.

I wonder if we should look into a 3-position switch so that it can be toggled 5V/3.3V/Auto? Alternatively, we could add a menu option to force a voltage, but I think we'd need some feedback for that somewhere to let you know what it's set to. I wish we had more pins, lol.

I'd hate to add another component just for vselect though; @sanni, is there anything you were wanting to do that needed a couple more pins? I was playing around with this, but it seems overkill just for a couple of status LEDs: