Bon, comme j'ai déjà posté un truc équivalent dans le forum US - voici un bout de code simpliste qui allume la LED intégrée quand l'heure de la journée est un des intervalles donnés dans le tableau slots[][].
il n'y a pas de gestion des jours (pas de prise en compte des week end) donc ça vous laisse un peu de boulot à effectuer et bien sûr il faudra adapter les time slots ainsi que le pilotage du relai s'il doit osciller
// *************************************************************
// Timing
// *************************************************************
const uint32_t hour_s = 3600ul, min_s = 60ul; // nb of seconds in 1h or 1min
// define when relay is ON through intervals, representing the number of seconds since midnight
const uint32_t slots[][2] = {
{14 * hour_s + 24 * min_s + 0 , 14 * hour_s + 24 * min_s + 30}, // [14:24:00 , 14:24:30]
{23 * hour_s + 27 * min_s + 30, 23 * hour_s + 29 * min_s}, // [23:27:30 , 23:29:00]
{23 * hour_s + 30 * min_s + 30, 23 * hour_s + 31 * min_s} // [23:30:30 , 23:31:00]
};
// *************************************************************
// RTC
// *************************************************************
#include "RTClib.h" // https://github.com/adafruit/RTClib (import adafruit RTCLib library)
RTC_DS3231 rtc;
// *************************************************************
// Relay management
// *************************************************************
void handleRelay()
{
const byte nbSlots = sizeof(slots) / sizeof(slots[0]);
static int currentActiveSlot = -1;
int slot = -1;
DateTime now = rtc.now();
uint32_t t = now.hour() * hour_s + now.minute() * min_s + now.second();
for (byte i = 0; i < nbSlots; i++) {
if ((t >= slots[i][0]) && (t <= slots[i][1])) {
slot = i;
break;
}
}
if (slot != currentActiveSlot) {
// something has changed
if (slot == -1) {
// we are not in a slot, so turn relay OFF
digitalWrite(LED_BUILTIN, LOW);
Serial.print(F("End of slot #"));
Serial.println(currentActiveSlot);
} else {
// we are entering a time slot, so turn relay ON
digitalWrite(LED_BUILTIN, HIGH);
Serial.print(F("Entering in slot #"));
Serial.println(slot);
}
currentActiveSlot = slot;
}
}
// *************************************************************
void setup() {
Serial.begin(115200);
pinMode(LED_BUILTIN, OUTPUT);
digitalWrite(LED_BUILTIN, LOW); // turn relay OFF (assuming LOW is OFF)
// start RTC
if (! rtc.begin()) {
Serial.print("Couldn't find RTC!");
while (1); // can't go further
}
// rtc.adjust(DateTime(F(__DATE__), F(__TIME__))); // only if your clock is not set up
}
// *************************************************************
void loop() {
handleRelay();
}