Aims

#include
// #include We are not using this.
#include "arduino_secrets.h"

LoRaModem modem;

void setup() {
Serial.begin(9600);
while (!Serial);

// ENV.begin();
pinMode(LED_BUILTIN, OUTPUT);

// change this to your regional band (eg. US915, AS923, ...)
if (!modem.begin(EU868)) {
Serial.println("Failed to start module");
while (1) {}
};

Serial.print("Your module version is: ");
Serial.println(modem.version());

if (modem.version() != ARDUINO_FW_VERSION) {
Serial.println("Please make sure that the latest modem firmware is installed.");
Serial.println("To update the firmware upload the 'MKRWANFWUpdate_standalone.ino' sketch.");
}

Serial.print("Your device EUI is: ");
Serial.println(modem.deviceEUI());

Serial.println("Connecting...");
int connected = modem.joinOTAA(APP_EUI, APP_KEY);

if (!connected) {
Serial.println("Something went wrong; are you indoor? Move near a window and retry");
while (1) {}
}

modem.minPollInterval(60); // Default is 300s
Serial.println("Waiting for messages...");
}

void loop() {
delay(60 * 1000); // Wait 60 secs before polling again

modem.poll();

// On The Things Stack the RX1 window is 5s which is the earliest moment
// to receive any downlink data. We add 1500ms to allow for the transmission
// of the data to complete.
delay(5000 + 1500);

if (!modem.available()) {
Serial.println("No downlink message received at this time.");
return;
}

char dataBuffer[64];
int i = 0;
while (modem.available()) {
dataBuffer[i++] = (char)modem.read();
}

Serial.print("Received: ");
for (unsigned int j = 0; j < i; j++) {
Serial.print(dataBuffer[j] >> 4, HEX);
Serial.print(dataBuffer[j] & 0xF, HEX);
Serial.print(" ");
}
Serial.println();

if(dataBuffer[0] == 1){
digitalWrite(LED_BUILTIN, HIGH);
} else if(dataBuffer[0] == 0) {
digitalWrite(LED_BUILTIN, LOW);
}

}