Hi, Because millis is not accurate, I'd like to use RTC instead. I have a project with an Lcd counter. it increase by One, every second more or less because millis is not accurate To execute my counter every second I use the common following line with millis if(currentMillis - previousMillis > …

Using RTC instead of millis to execute something every second

mixographer October 11, 2017, 2:50am 5

I think the DS3231 has the capability to output a 1 hz square wave on one of it’s pins. I would think about using that.

Jimmy

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