First node problems - compiling

I made both recommended changes to all bits of code.
Data only sends one byte for door1 now.
Data: Payload 01 Door1: 1
EDIT: I found it: removed the minus one from “sizeof(mydata) -1” in sendjob as this was for a “hello world”-sketch originally.

#include <lmic.h>
#include <hal/hal.h>
#include <SPI.h>

// LoRaWAN NwkSKey, network session key
// LoRaWAN AppSKey, application session key
// LoRaWAN end-device address (DevAddr)

void os_getArtEui (u1_t* buf) { }
void os_getDevEui (u1_t* buf) { }
void os_getDevKey (u1_t* buf) { }

// HERE YOUR CODE!!
int Door1State = LOW;
int Door1StateChanged = 0;
int Door1Pin = 8;
int Door2State = LOW;
int Door2StateChanged = 0;
int Door2Pin = 9;
uint8_t mydata[] = { 0x00, 0x00 };
// END HERE !!

static osjob_t sendjob;
unsigned TX_INTERVAL = 60;

// Pin mapping
const lmic_pinmap lmic_pins = {
    .nss = 6,
    .rxtx = LMIC_UNUSED_PIN,
    .rst = 5,
    .dio = {2, 3, 4},
};

#define DEBUG

void onEvent (ev_t ev) {
    Serial.print(os_getTime());
    Serial.print(": ");
    switch(ev) {
        case EV_SCAN_TIMEOUT:
            Serial.println(F("EV_SCAN_TIMEOUT"));
            break;
        case EV_BEACON_FOUND:
            Serial.println(F("EV_BEACON_FOUND"));
            break;
        case EV_BEACON_MISSED:
            Serial.println(F("EV_BEACON_MISSED"));
            break;
        case EV_BEACON_TRACKED:
            Serial.println(F("EV_BEACON_TRACKED"));
            break;
        case EV_JOINING:
            Serial.println(F("EV_JOINING"));
            break;
        case EV_JOINED:
            Serial.println(F("EV_JOINED"));
            break;
        case EV_RFU1:
            Serial.println(F("EV_RFU1"));
            break;
        case EV_JOIN_FAILED:
            Serial.println(F("EV_JOIN_FAILED"));
            break;
        case EV_REJOIN_FAILED:
            Serial.println(F("EV_REJOIN_FAILED"));
            break;
            break;
        case EV_TXCOMPLETE:
            Serial.println(F("EV_TXCOMPLETE (includes waiting for RX windows)"));
            TX_INTERVAL = 3600;  // Change reporting complete, go back to longer interval
            Serial.println("Transmit repeat set to 60min");
            if(LMIC.dataLen) {
                // data received in rx slot after tx
                Serial.print(F("Data Received: "));
                Serial.write(LMIC.frame+LMIC.dataBeg, LMIC.dataLen);
                Serial.println();
            }
            // Schedule next transmission
            os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
            break;
        case EV_LOST_TSYNC:
            Serial.println(F("EV_LOST_TSYNC"));
            break;
        case EV_RESET:
            Serial.println(F("EV_RESET"));
            break;
        case EV_RXCOMPLETE:
            // data received in ping slot
            Serial.println(F("EV_RXCOMPLETE"));
            break;
        case EV_LINK_DEAD:
            Serial.println(F("EV_LINK_DEAD"));
            break;
        case EV_LINK_ALIVE:
            Serial.println(F("EV_LINK_ALIVE"));
            break;
         default:
            Serial.println(F("Unknown event"));
            break;
    }
}

void do_send(osjob_t* j){
    if (LMIC.opmode & OP_TXRXPEND) {
        Serial.println(F("OP_TXRXPEND, not sending"));
    } else {
        LMIC_setTxData2(1, mydata, sizeof(mydata)-1, 0);
        Serial.println(F("Packet queued"));
    }
}

void setup() {
    Serial.begin(57600);
    Serial.println(F("Starting"));

    pinMode(Door1Pin, INPUT_PULLUP);
    pinMode(Door2Pin, INPUT_PULLUP);

    os_init();
    LMIC_reset();
    #ifdef PROGMEM
    uint8_t appskey[sizeof(APPSKEY)];
    uint8_t nwkskey[sizeof(NWKSKEY)];
    memcpy_P(appskey, APPSKEY, sizeof(APPSKEY));
    memcpy_P(nwkskey, NWKSKEY, sizeof(NWKSKEY));
    LMIC_setSession (0x1, DEVADDR, nwkskey, appskey);
    #else
    LMIC_setSession (0x1, DEVADDR, NWKSKEY, APPSKEY);
    #endif
    LMIC_setupChannel(0, 868100000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(1, 868300000, DR_RANGE_MAP(DR_SF12, DR_SF7B), BAND_CENTI);      // g-band
    LMIC_setupChannel(2, 868500000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(3, 867100000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(4, 867300000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(5, 867500000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(6, 867700000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(7, 867900000, DR_RANGE_MAP(DR_SF12, DR_SF7),  BAND_CENTI);      // g-band
    LMIC_setupChannel(8, 868800000, DR_RANGE_MAP(DR_FSK,  DR_FSK),  BAND_MILLI);      // g2-band
    LMIC_setLinkCheckMode(0);
    LMIC_setDrTxpow(DR_SF7,14);

      do_send(&sendjob);  

}

void loop() {


     if(digitalRead(Door1Pin) == HIGH){
      if (Door1State == LOW) {
        Serial.println("Door1 open");
        Door1State = HIGH;
        mydata[0] = 1;
        Door1StateChanged = 1;
        } 
     }
     else if (digitalRead(Door1Pin) == LOW) {
      if (Door1State == HIGH) {
        Serial.println("Door1 closed");
        Door1State = LOW;
        mydata[0] = 0; 
        Door1StateChanged = 1;
        }
     }
    
     if(digitalRead(Door2Pin) == HIGH){
      if (Door2State == LOW) {
        Serial.println("Door2 open");
        Door2State = HIGH;
        mydata[1] = 1;
        Door2StateChanged = 1;
        }
     }
     else if (digitalRead(Door2Pin) == LOW) {
      if (Door2State == HIGH) {
        Serial.println("Door2 closed");
        Door2State = LOW;
        mydata[1] = 0; 
        Door2StateChanged = 1;
        }
     }
     
    if (Door1StateChanged == 1 || Door2StateChanged == 1) {
        Serial.print("Door1Pin:");
        Serial.println(digitalRead(Door1Pin));
        Serial.print("Door2Pin:");
        Serial.println(digitalRead(Door2Pin));
        TX_INTERVAL = 5;  // Change detected, push change faster
        Serial.println("Transmiting now, 5s interval until sent");
        os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send);
        Door1StateChanged = 0;
        Door2StateChanged = 0;
      }

delay(3000);
  
   os_runloop_once();
}

I would gladly have the interval at 60mins (an “I’m alive”-function) and not bombard the radio. Doing triggered sends is desired, but I still haven’t figured out what exactly THIS segment of loop should be (i.e. calling do_send – the syntax for the line):

        Serial.println("Transmiting now, 5s interval until sent");
        os_setTimedCallback(&sendjob, os_getTime()+sec2osticks(TX_INTERVAL), do_send); //THIS!!
        Door1StateChanged = 0;
        Door2StateChanged = 0;
      }