This is just a placeholder for my playing with the current meter.
I recently invested (!) in a small device
and plan to use it to check battery capacity when running my little esp8266 thingies. I find that the batteries do not last as long as I expected based on capacity and the esp power usage so this is my attempt to see if the current meter agrees with my observation.
Only played with it for a couple of days, and each test takes one day (depleting a 600mAh battery).
For fun I also ran it at full speed, reading the meter as fast as possible to see if it shows what I see on the DSO. Here is an example of the output:
I used the aruino IDE in this case, which ran on a nodemcu, measuring another esp8266 board.
The run managed about 1600 readings a second.
This is the sketch
Simple at this stage, uses the power-up defaults.