RE: Blog #5: My Python and C Libraries are available now

guillengap — Thu, 28 Apr 2022 00:34:34 GMT

Hi [mention:7ac0e16090954ddfa5ac0f03fa891723:e9ed411860ed4f2ba0265705b8793d05] Thanks for sharing your libraries, just two small things: 1) Is it possible to use your C++ library on a MAX32620FTHR board in Mbed OS?; and 2) Is it possible to measure microamps with your python library? ... good luck

RE: Blog #5: My Python and C Libraries are available now

colporteur — Tue, 26 Apr 2022 21:19:22 GMT

An anomaly in readings I noticed during preliminary testing.

I have the sensor reading the voltage of the locomotive motor sitting on the bench. I was holding off testing with the train on the track until I had some confidence in my methodology.

I used your python library to read current and voltage at 5 sec intervals. At the elipse in the screen shot I changed the supply voltage from 5VDC to 3VDC, to simulate the locomotive speed being reduced. The readings after the voltage shift do not reflect the change.

To correct the issue I moved the max.configure method to the loop routine I use to make the measurement.

My reasoning is since the reference voltage has changed it is necessary to establish the configuration to obtain accurate readings. Is my train of thought correct or is there something else I need to consider?.