Hello everyone,
its hard to believe, but two weeks ago I started working on this project again. I have made some improvements, and also implemented remote control of DSO from PC. It is using javascript/html, so it should be simple to anyone to start experimenting with DSO remotely.
Currently I am working on the calibration process, but it is more complicated than I thought. At first I have used linear transformation for the ADC values, but it was not sufficient. Then I used calibration curve (6 points linear approximation), it worked perfectly, but when I changed the vertical position, it was messed up.
Is here anyone who has some idea how to calibrate the scope? In the original source codes, there is only linear transformation, but it produces big error…