Has anyone noticed that if calling analogRead() in a consecutive way that the value drops by a bit as opposed to just doing a single read?
And is this to be expected?
I am using a Seeeduino XIAO.
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You need a short delay between analog reads, more about it here: quora.com/…– NinoJul 18, 2021 at 15:10
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@Nino Thank you. That would explain it! (Add it as answer and I mark it as solution.)– MeSo2Jul 18, 2021 at 15:23
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1 Answer
You need a short delay between analog reads due to the time it takes to complete a reliable ADC reading. In depth technical explanations can be found here, note that it refers to AVR architecture.
