[sdiy] Current and Voltage Measurement

Jacob Watters jacobwatters at gmail.com
Sat Jan 13 22:05:52 CET 2018


For eurorack stuff Joranalogue has a DIY module that is mostly pre-built. I
think it uses the atmega328, so it might not be overly precise, but it is
good enough to get an average reading for the specs list.

https://joranalogue.com/products/test-3?variant=43190535754

On Jan 13, 2018 2:04 PM, "Roman" <modular at go2.pl> wrote:

FWIW, I usually estimate current draw in battery backup circuits by
measuring voltage on the diode that connects battery to backed-up IC. Then
calculate current from diode equation.
Not super precise, but more than enough to see if there's something wrong
with the circuit.

Roman


Dnia 13 stycznia 2018 17:04 MTG <grant at musictechnologiesgroup.com>
napisał(a):

If memory serves, there was a discussion not too long ago about
measuring currents and such. This little board could be adapted to do
some testing I think. I'm going to get one to look at current draw in
old synth battery-backed memory designs.

http://www.microchip.com/Developmenttools/ProductDetails.aspx?PartNO=
ADM00805

Seems to have a good range and minimal impact on the circuit under test.
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