Re: Scope attenuators 1,2,5, why bother?

Jan Panteltje wrote:
So, while waiting for parts to arrive, I have been diddling sketches on an A4 piece
of paper, on how to design the the minimal cost attenuator, for the PIC scope I am planning.

Now I peaked at one scope I have here, and it has an 11 position switch
10mv, 20 mV, 50 mV, 100 mV, 200mV, 500mV, 11V, 2V, 5V, 10V, 20V

Now that sucks in a way, as counting to 5 is very difficult,
as we all think binary these days ;-)

You could make the attenuator steps user programmable through some setup menu.

BTW, why torture yourself with a PIC, when you can get a cheap LPCxxxx ARM that can be programmed in C ? The ARM also has a fast multiplier that makes scaling easy.


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