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Moderator: igrr

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By Pablo2048
#82946 Better way is to search the web for reasons, why and how to use power filtering with different capacitor types and sizes. At least you have to read this https://www.edn.com/design/analog/43135 ... erformance - it is valid not for just PLL circuit (ESP8266 contains some PLL's too). Or you can try, what I've suggested - just connect small ceramic capacitor in parallel with your huge 1000uF one...