>>Measuring current gets tricky. > Actually not, there are several good chips like the INA197.
Mostly, what I was trying to point out is that measuring current probably won't work well with a simple off-the-shelf general purpose A/D via USB setup. If you were going to build a gizmo for this sort of work, what would you include? One each of current, voltage, and temperature seems like a good combination. Maybe another/spare input would be handy. For this sort of stuff, I think I'd rather have more bits than higher speed. Is there some obvious micro with a builtin A/D that's good enough and USB (or serial)? How much error do analog muxes add? -- These are my opinions, not necessarily my employer's. I hate spam. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
