Measure sleep current uA/nA of battery equipment using a cheap meter.

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Measure tiny nanoAmp currents with a cheap digital meter when your microprocessor sleeps, even if your meter can't natively measure that low. I show my prototype board, then the finished project.

0.00 What's in this video?
0:20 The need to measure tiny currents
1:02 Basics of current measurement
1:41 Shunts - using a voltmeter to measure current
2:30 Why you shouldn't trust your meter
3:41 Table of shunt values
4:12 Resolution of meters
4:35 How to fix wake-up problems
5:16 Full schematic
5:34 First prototype
5:53 Final version - adding a ground socket
6:06 How to use the Nano-Amper
7:20 Profiling current with a 'scope
7:55 Limitations
8:36 Why you should build it

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