On Wed, Jul 29, 2020 at 08:18 AM, <jsalbinson@...> wrote:

Maybe of interest: Bill Earl (https://learn.adafruit.com/multi-tasking-the-arduino-part-1/a-classy-solution)

There's plenty similar code in OnStep except I do the math correctly.

Don't use this form, it will fall down (after several days) due to overflow:

if((ledState == HIGH) && (currentMillis - previousMillis >= OnTime))

It should be:

if ((ledState == HIGH) && ((long)(currentMillis - previousMillis) >= OnTime))