HI

So far i tried the following but keep failing. :(

Will keep trying......

#include <M5Stack.h>

HardwareSerial Serial2(2);

String cmd_DEF = "AT+FDEFAULT";
String cmd_RESET = "AT+RESET";
//String cmd_OTTA_mode = "AT+MODE=LWOTAA";

String cmd_DevEui = "AT+ID=DevEui, "47eabd4800370055"";
String cmd_DevAddr = "AT+ID=DevAddr, "07585E3D"";
String cmd_NWKSKEY = "AT+KEY=NWKSKEY, "2B7E151628AED2A6ABF7158809CF4F3C"";
String cmd_APPSKEY = "AT+KEY=APPSKEY, "2B7E151628AED2A6ABF7158809CF4F3C"";

String cmd_BAND = "AT+DR=EU868";
String cmd_DR = "AT+DR=DR5";
String cmd_ADR = "AT+ADR=ON";

String cmd_rfconf_ch0D = "AT+CH=0, 0";
String cmd_rfconf_ch1D = "AT+CH=1, 0";
String cmd_rfconf_ch2D = "AT+CH=2, 0";
String cmd_rfconf_ch3D = "AT+CH=3, 0";
String cmd_rfconf_ch4D = "AT+CH=4, 0";
String cmd_rfconf_ch5D = "AT+CH=5, 0";
String cmd_rfconf_ch6D = "AT+CH=6, 0";

String cmd_rfconf_ch0 = "AT+CH=0, 868.1, DR0, DR5";
String cmd_rfconf_ch1 = "AT+CH=1, 868.3, DR0, DR5";
String cmd_rfconf_ch2 = "AT+CH=2, 868.5, DR0, DR5";
String cmd_rfconf_ch3 = "AT+CH=3, 867.1, DR0, DR5";
String cmd_rfconf_ch4 = "AT+CH=4, 867.3, DR0, DR5";
String cmd_rfconf_ch5 = "AT+CH=5, 867.5, DR0, DR5";
String cmd_rfconf_ch6 = "AT+CH=6, 867.7, DR0, DR5";

String cmd_CH = "AT+CH=NUM, 0-6";

String cmd_RX1 = "AT+RXWIN1=1,868.3";
String cmd_RX2 = "AT+RXWIN2=869.525,DR0";

String cmd_POW = "AT+POWER=14";
String cmd_JOIN = "AT+JOIN=FORCE";

String cmd_send_data = "AT+MSG="Data to send"";

void setup() {

M5.begin();
Wire.begin();
// Lcd display
M5.Lcd.setBrightness(100);
M5.Lcd.fillScreen(BLACK);
M5.Lcd.setCursor(10, 10);
M5.Lcd.setTextColor(WHITE);
M5.Lcd.setTextSize(1);
M5.Lcd.printf("Wireless 360 LoraWAN Network");
delay(300);
M5.Lcd.fillScreen(BLACK);
delay(150);
M5.Lcd.setCursor(0, 10);
M5.Lcd.fillScreen(BLACK);
for(int i=0; i<200; i++) {
M5.Lcd.setBrightness(i);
delay(2);
}

Serial.begin(115200);

// Serial2.begin(unsigned long baud, uint32_t config, int8_t rxPin, int8_t txPin, bool invert)
Serial2.begin(9600, SERIAL_8N1, 16, 17);
Serial2.flush();
/* LoRaWAN Init */
//Serial2.println(cmd_JOIN);

M5.Lcd.println("Setting up the LoraWAN Connetion");
Serial2.println(cmd_DEF);
Serial2.println(cmd_RESET);
delay(1000);
Serial2.println(cmd_DevEui);
Serial2.println(cmd_DevAddr);
Serial2.println(cmd_NWKSKEY);
Serial2.println(cmd_APPSKEY);
delay(1000);
//Serial2.println(cmd_BAND);
//Serial2.println(cmd_DR);
//Serial2.println(cmd_ADR);
//Serial2.println(cmd_rfconf_ch0D);
//Serial2.println(cmd_rfconf_ch1D);
//Serial2.println(cmd_rfconf_ch2D);
//Serial2.println(cmd_rfconf_ch3D);
//Serial2.println(cmd_rfconf_ch4D);
//Serial2.println(cmd_rfconf_ch5D);
//Serial2.println(cmd_rfconf_ch6D);
//Serial2.println(cmd_rfconf_ch0);
//Serial2.println(cmd_rfconf_ch1);
//Serial2.println(cmd_rfconf_ch2);
//Serial2.println(cmd_rfconf_ch4);
//Serial2.println(cmd_rfconf_ch5);
//Serial2.println(cmd_rfconf_ch6);
//Serial2.println(cmd_CH);
. Serial2.println(cmd_RX1);

Serial2.println(cmd_RX2);
//Serial2.println(cmd_POW);
delay(1000);
M5.Lcd.println("Connecting to the LoraWAN Connetion");
//Serial2.println(cmd_JOIN);
//M5.Lcd.println("Sending Data.");
Serial2.println(cmd_send_data);

}

void loop() {
//Serial2.println(cmd_send_data);
//delay(100);

if(Serial.available()) {
int ch = Serial.read();
Serial2.write(ch);
}

if(Serial2.available()) {
int ch = Serial2.read();
Serial.write(ch);
//M5.Lcd.println(ch);
}
}