#define LED 14

 #ifdef MASTER
uint8_t peerMacAddress[6] = {0x30, 0xAE, 0xA4, 0xF8, 0x05, 0x48};  // MAC od slave-a

void setup() {
                Serial.begin(115200);
                modeStation();
                InitESPNow();
                addPeer(peerMacAddress);
                esp_now_register_send_cb(OnDataSent); // funkcija se izvršava on DataSent
                pinMode(PIN, INPUT);
                pinMode(LED, OUTPUT);
                readAndSend();    // čita vrijednost pina i šalje
              }

void readAndSend(){
                    uint8_t value = digitalRead(PIN);
                    send(&value, peerMacAddress); // pošalji slave-u
                  }


void OnDataSent(const uint8_t *mac_addr, esp_now_send_status_t status) {
                                                                        Serial.println(status == ESP_NOW_SEND_SUCCESS ? "Success" : "Fail");
                                                                        if (status == 0){digitalWrite(LED, HIGH);}
                                                                        else {digitalWrite(LED, LOW);}
                                                                        readAndSend();
                                                                       }
void loop() {
}
#endif