boolean
A boolean holds one of two values, true or false. Each boolean variable occupies one byte of memory.
boolean first_run = true;
void loop() {
if (!first_run) {
first_run = false;
// do something only once on power on
}
}
boolean first_run = true;
void loop() {
if (!first_run) {
first_run = false;
// do something only once on power on
}
}