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Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@tage
There are many ways to filter out noise. Here is a test that I did comparing the readings from Espruino with a system multimeter 34401A. I made the same test with three different settings of the filter, in the one with 21 samples where I only keep one single reading (the median) you can clearly see the effect of the 12bit resolution. I think the performance of the Espruino ADC is quite good even in this very noisy test setup (and using long wires to connect the Espruino to the switching converter I am working on). Using 100 samples the worst error was 20mV- with a measurement range of 68V that is not bad.
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