This is code. Do correct me/ shout me down if this is not the most appropriate place, or if this has so blatantly been done before, but we are forever referring people to the "Blink without delay" example when they enquire as to how to blink multiple LEDs at different rates, or monitor switches and …

Blink without "delay()" - stepping up. - #19 by system - Showcase

Topic		Replies	Views	Activity
Sticky - Blink Two LEDs, independent, no delay Website and Forum	79	26047	May 6, 2021
Blink without delay Programming	28	9579	May 5, 2021
Demonstration code for several things at the same time General Guidance	103	761318	December 20, 2014
Blink without delay for 2 different time intervals Programming	15	22745	May 5, 2021
Other ways to Blink ! Frequently-Asked Questions	10	10860	May 6, 2021