Over the weekend I have implemented multi point calibration. I currently use 8 calibration points, which seems to work just fine. I use linear interpolation to get calibration values between the calibration points. Testing shows that things are working quite well. Current limiting is working, and accurate down to less than 20mA (I can even plug an LED directly into the power supply outputs without it blowing up!)

I also added the ability to set startup voltage / current limiting on a per-channel basis. This is configured via the calibration script (run on the computer, talking to the power supply over USB Raw HID).

I will post a demo video when I get the chance, although that may not be for a few days given my workload right now...