Traffic light intersection simulation project

[zerovolts]

@GoForSmoke

When you use delay(), you COMPLETELY WASTE 16000 cpu cycles per millisecond that could be doing something else like running sensors while many leds get turned on and off.

I know! I’m only using it here so I have a starting point that I can build upon. This is version 1.

@GoForSmoke

…it’s possible to write a function that blinks a status led and add that to loop() and then that led will blink on time within reason no matter what anything else does.

The problem with “…no matter what anything else does” is I want the R/Y/G LEDs to not only not block the input from the four pedestrian buttons, but also not rigidly follow the same R/Y/G pattern continuously. Input from the pedestrian buttons should be able to alter the R/Y/G sequence, as will EVP (emergency vehicle preemption) mode — which will essentially be triggered by a 5th button.