I've put some time over the last few days writing a control program for this to run under Linux, output functions are now OK although I've yet to do a waveform editor.
I cannot get it to either measure or count the signal on the "Ext. IN" connector. I sometimes see the counter flickering between 0 and 1, but it refuses to make any effort to go beyond that or report voltages etc.
Has anybody actually got this working reliably, and if so what "special magic" is involved?
I know that various people have reported failures on the output channels, but fortunately those appear OK since they're what I actually want (subject obviously to the capabilities of an instrument this cheap).
MarkMLl