if (ledState == HIGH) {
unsigned long startTime = millis();
}
This creates a new variable called startTime which is local to just this block. Anywhere outside this block, you can never see this value.
Removed the "unsigned long " here.
if (ledState == HIGH) {
unsigned long startTime = millis();
}
This creates a new variable called startTime which is local to just this block. Anywhere outside this block, you can never see this value.
Removed the "unsigned long " here.