Quadrupple Voltmeter
Contributed by LucHardware
Overview
Measure 10 samples and calculate te average voltage on the analog inputs A0, A1, A2 and A3. Display the results on the OLED and send them also to the PC in CSV format.
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Details
The program is a compilation from a few sketches. The maximum input is 3.3 Volt. In my example a voltmeter is connected to A0 (output potmeter), I put a resistor from 10K between A0 and A1, 4K7 between A1 and A2, 4K7 between A2 and A3, and a diode 1N4148 between A3 and Ground. This to show the accuracy from the PIC on the MAX32. On my board the max deviation was 9 mV on 3.3V this is 0.3%. Not bad at all.
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| Title | Information type |
|---|---|
| Quadrupple Voltmeter | Application Notes |
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