const bool debug = true;
#define TIME_TO_SLEEP 20000
#define mS_TO_S_FACTOR 1000
#define NUM_LIGHTS 63
typedef struct {
  byte id; // Id of the the light in the bridge
  byte type; //1=Dimmable light, 2=Color temperature light, 3=Color light, 4=Smart Plug
} light_t;
typedef struct {
  light_t lights[NUM_LIGHTS];
  // other persistent info goes here
} rtc_data_t;
RTC_DATA_ATTR rtc_data_t saved_state;
RTC_DATA_ATTR int bootCount = 0;

void deepSleep() {
  esp_sleep_enable_timer_wakeup(TIME_TO_SLEEP * mS_TO_S_FACTOR);
  if (debug) {
    Serial.println("Going to sleep now for " + String(TIME_TO_SLEEP) + " milliseconds");
    Serial.println("");
  }
  if (debug) Serial.flush();
  esp_deep_sleep_start();
}

void setSerial() {
  Serial.begin(115200);
  while (!Serial) continue;
}

void setup() {
  if (debug) setSerial();
  ++bootCount;

  if (bootCount == 1) {
    light_t light_1 = { 1, 1 };
    light_t light_2 = { 2, 1 };
    light_t saved_state[NUM_LIGHTS];
    saved_state[0] = light_1;
    saved_state[1] = light_2;
    //saved_state = { light_1, light_2 };
  } else {
    //print RTC contents..
    ?
  }
  deepSleep();
}

void loop() {

}