Millis timing incrementing best practice

[LarryD]

Be aware of potential problems as discussed here:

Blink Without Delay problem. Warning.

Warning to new people. I just wanted to point out a potential (major) problem with the BWD (Blink Without Delay) technique. There are two (four, see post #4) ways that the BWD timing variable can updated: Method one updates the timing variable by adding the delay time to the timing variable itself. There is an argument that this will prevent slippage in timing. millisOne = millisOne + delayTime; Method two updates the timing variable by setting it equal to the current value of millis()…