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#define LEDPIN 13
int task1(void) {
static bool state = 0;
digitalWrite(LEDPIN, state);
state = !state;
return 0;
}
int task2(void) {
Serial.print("l");
return 0;
}
int task3(void) {
Serial.print("h");
return 0;
}
int runevery(int (*f)(), unsigned long *last, unsigned long period) {
unsigned long now = millis();
if (*last + period > now) {
return -1;
}
*last = now;
return (*f)();
}
#define TASKS 3
unsigned long lasts[TASKS];
void setup() {
Serial.begin(115200);
pinMode(LEDPIN, OUTPUT);
for (int i = 0; i < TASKS; i++) {
lasts[i] = 0;
}
}
void loop() {
unsigned i = 0;
runevery(task1, &lasts[i++], 1000);
runevery(task2, &lasts[i++], 100);
runevery(task3, &lasts[i++], 10);
}
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