LORA E220 error using U8g2Lib

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27 December 2023 at 11:38 #28873

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Hello Mr. Renzo, please help me.
My name is Hansaran, and I have interest in electronics. I often read your articles about LoRa. I’m a beginner with LoRa and ESP32 modules, because usually I use Arduino for my projects.

I want to create a LoRa communication device to monitor someone. The monitoring data will be sent to a gateway using the LoRa E220 module. I have never used LoRa before. I’m making this device to monitor my father, who is a sulfur miner. The mining is done manually, and there is no communication network available, which makes me worry about his condition. I hope this device can be completed and can be useful for my father. Sorry for the long explanation.

When I try to integrate the “sendfixedtransmission” example into my existing program, I have an error like this.

Guru Meditation Error: Core  1 panic'ed (LoadProhibited). Exception was unhandled.
Core  1 register dump:
PC      : 0x400d632b  PS      : 0x00060a30  A0      : 0x800d6413  A1      : 0x3ffc5b70  
A2      : 0x3ffc2044  A3      : 0x000000c1  A4      : 0x00000000  A5      : 0x00000008  
A6      : 0x3ffb7c80  A7      : 0x00000000  A8      : 0x800d6304  A9      : 0x3ffc5b60  
A10     : 0x00000000  A11     : 0x000003e8  A12     : 0x00000064  A13     : 0x00000067  
A14     : 0x00060a20  A15     : 0x00000001  SAR     : 0x0000000a  EXCCAUSE: 0x0000001c  
EXCVADDR: 0x00000000  LBEG    : 0x4008474d  LEND    : 0x40084755  LCOUNT  : 0x00000027  

Backtrace: 0x400d6328:0x3ffc5b70 0x400d6410:0x3ffc5ba0 0x400d2ba6:0x3ffc5be0 0x400d8b0a:0x3ffc5c40
ELF file SHA256: 31e1dff54c44b265
Rebooting...

I’ve read articles about this error but still don’t understand it. https://stackoverflow.com/questions/63399901/how-to-fix-guru-meditation-error-core-1-paniced-loadprohibited-error

It turned out that the buffer(declared globally) that I used for receiving messages was appending new messages instead of overwriting the pre-existing contents in it. So, an illegal memory-write attempt was made and the device panicked and rebooted.

I’ve tried sending the fixed transmission example before and it worked.
Please, I need your help.

Here is my code:

#include "U8g2lib.h"
#include <Wire.h>
#include "RTClib.h"
#include "FS.h"
#include "SD.h"
#include "SPI.h"
#include "Arduino.h"
#include "LoRa_E220.h"

U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0); // //OLED SSD1306 128x64
LoRa_E220 e220ttl(&Serial2, 15, 33, 32); //  RX AUX M0 M1

// 'icon_sync', 16x16px
const unsigned char bitmap_icon_sinkronisasi [] PROGMEM = {
  0x00, 0x00, 0xe0, 0x01, 0x10, 0x38, 0x88, 0x18, 0x84, 0x28, 0x82, 0x20, 0x82, 0x40, 0x82, 0x40,
  0xc2, 0x4f, 0xc2, 0x40, 0x02, 0x40, 0x0a, 0x20, 0x0c, 0x10, 0x0e, 0x08, 0xc0, 0x07, 0x00, 0x00,
};
// 'icon_gps1', 16x16px
const unsigned char bitmap_icon_node_sensor_1 [] PROGMEM = {
  0x00, 0x00, 0xc0, 0x0f, 0x00, 0x10, 0x80, 0x27, 0x00, 0x48, 0x00, 0x53, 0x60, 0x54, 0xe0, 0x54,
  0xe0, 0x51, 0xe0, 0x03, 0xe0, 0x03, 0x50, 0x40, 0xf8, 0x60, 0x04, 0x41, 0xfe, 0x43, 0x02, 0xe2,
};
// 'icon_gps2', 16x16px
const unsigned char bitmap_icon_node_sensor_2 [] PROGMEM = {
  0x00, 0x00, 0xc0, 0x0f, 0x00, 0x10, 0x80, 0x27, 0x00, 0x48, 0x00, 0x53, 0x60, 0x54, 0xe0, 0x54,
  0xe0, 0x51, 0xe0, 0x03, 0xe0, 0x03, 0x50, 0x60, 0xf8, 0x90, 0x04, 0x41, 0xfe, 0x23, 0x02, 0xf2,
};
// 'icon kembang api', 16x16px
const unsigned char bitmap_icon_sleep [] PROGMEM = {
  0x00, 0x00, 0x00, 0x10, 0x00, 0x29, 0x08, 0x10, 0x08, 0x00, 0x36, 0x00,
  0x08, 0x08, 0x08, 0x08, 0x00, 0x00, 0x00, 0x63, 0x00, 0x00, 0x00, 0x08,
  0x20, 0x08, 0x50, 0x00, 0x20, 0x00, 0x00, 0x00,
};
// 'icon jam', 16x16px
const unsigned char bitmap_icon_set_waktu [] PROGMEM = {
  0xe0, 0x07, 0x18, 0x18, 0x84, 0x24, 0x8a, 0x40, 0x82, 0x50, 0x81, 0x80, 0xc1, 0x81, 0x45, 0xae,
  0x41, 0x82, 0x81, 0x81, 0x05, 0xa0, 0x02, 0x40, 0x12, 0x48, 0x04, 0x21, 0x18, 0x18, 0xe0, 0x07,
};
// 'icon_knob_over_oled', 16x16px

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 384)
const unsigned char* bitmap_icons[5] = {
  bitmap_icon_sinkronisasi,
  bitmap_icon_node_sensor_1,
  bitmap_icon_node_sensor_2,
  bitmap_icon_sleep,
  bitmap_icon_set_waktu,
};

// Array of all bitmaps for convenience. (Total bytes used to store images in PROGMEM = 8320)
// 'scrollbar_background', 8x64px
const unsigned char bitmap_scrollbar_background [] PROGMEM = {
  0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
  0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
  0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
  0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
  0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40, 0x00, 0x40,
  0x00, 0x40, 0x00, 0x00,
};

// 'item_sel_outline', 128x21px
const unsigned char bitmap_item_sel_outline [] PROGMEM = {
  0xF8, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  0xFF, 0xFF, 0xFF, 0x03, 0x04, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x04, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x02, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C,
  0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
  0x00, 0x00, 0x00, 0x0C, 0xFC, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF,
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x07, 0xF8, 0xFF, 0xFF, 0xFF,
  0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0x03,
};

// ------------------ end generated bitmaps from image2cpp ---------------------------------

const int NUM_ITEMS = 5; // number of items in the list and also the number of screenshots and screenshots with QR codes (other screens)
const int MAX_ITEM_LENGTH = 20; // maximum characters for the item name

char menu_items [NUM_ITEMS] [MAX_ITEM_LENGTH] = {  // array with item names
  { "Sinkronisasi" },
  { "Node Sensor 1" },
  { "Node Sensor 2" },
  { "Sleep" },
  { "Set. Waktu" },
};
// note - when changing the order of items above, make sure the other arrays referencing bitmaps
// also have the same order, for example array "bitmap_icons" for icons, and other arrays for screenshots and QR codes
// TOMBOL MENU
#define BUTTON_UP_PIN 27 // pin for UP button 
#define BUTTON_SELECT_PIN 25 // pin for SELECT button
#define BUTTON_DOWN_PIN 26 // pin for DOWN button
int button_up_clicked = 0; // only perform action when button is clicked, and wait until another press
int button_select_clicked = 0; // same as above
int button_down_clicked = 0; // same as above
int item_selected = 0; // which item in the menu is selected
int item_sel_previous; // previous item - used in the menu screen to draw the item before the selected one
int item_sel_next; // next item - used in the menu screen to draw next item after the selected one
int current_screen = 0;   // 0 = menu, 1 = screenshot, 2 = qr

//ATUR WAKTU
int tombol_up = 0; // only perform action when button is clicked, and wait until another press
int tombol_ok = 0; // same as above
int tombol_down = 0; // same as above
int item_terpilih = 0; // which item in the menu is selected
int aksi_sekarang = 0;   // 0 = menu, 1 = screenshot, 2 = qr
int tombol_ok_sinkron = 0;
int kurang = 0;
int dino;

// RTC DS1307
RTC_DS1307 rtc;
//uint8_t set_tahun, set_bulan, set_tanggal, set_jam, set_menit, set_detik;
uint8_t  bulan, tanggal, jam, menit, detik;
uint16_t tahun;
String hari, jam_up, menit_up, detik_up, sync_time;
unsigned long delay_rtc;
String timstep;
char daysOfTheWeek[7][12] = {
  "Sunday",
  "Monday",
  "Tuesday",
  "Wednesday",
  "Thursday",
  "Friday",
  "Saturday"
};

// SD Card
unsigned long delaysd;
unsigned long delaytampil;
String simpan_waktu, simpan_node1, simpan_node2;
String hrate1, suhu1, lon1, lat1, alt1, hrate2, suhu2, lon2, lat2, alt2;

// LORA
#define NODESENSOR1 2 //NODE SENSOR 1
#define NODESENSOR2 4 //NODE SENSOR 1
#define ENABLE_RSSI true
String pesan_n1, pesan_n2, pesan;

//int detik;
//----------------------------------- File SD -----------------------------------------
//SDCARD READ FILES
void readFile(fs::FS &fs, const char * path) {
  //Serial.printf("Reading file: %s\n", path);

  File file = fs.open(path);
  if (!file) {
    //Serial.println("Failed to open file for reading");
    return;
  }

  Serial.println("Read from file: ");
  while (file.available()) {
    Serial.write(file.read());
  }
  file.close();
}
//SDCARD WRITE FILES
void writeFile(fs::FS &fs, const char * path, const char * message) {
  File file = fs.open(path, FILE_WRITE);
  if (!file) {
    return;
  }
  if (file.print(message)) {
  } else {
  }
  file.close();
}
//SDCARD APPEND
void appendFile(fs::FS &fs, const char * path, const char * message) {
  File file = fs.open(path, FILE_APPEND);
  if (!file) {
    return;
  }
  if (file.print(message)) {
  } else {
  }
  file.close();
}
//SDCARD RENAME FILES
void renameFile(fs::FS &fs, const char * path1, const char * path2) {
  if (fs.rename(path1, path2)) {
  } else {
  }
}
//SDCARD DELETE FILES
void deleteFile(fs::FS &fs, const char * path) {
  if (fs.remove(path)) {
  } else {
  }
}
// ------------------------------------ Menu 1--------------------------------------------

// -----------------------------------------------------------------------------------------------------------
void sinkronisasi(void) {
  //u8g2.setFont(u8g2_font_4x6_tf);
  //u8g2.setFont(u8g2_font_u8glib_4_tf);
  //u8g2.setFont(u8g2_font_6x10_mf);
  //u8g2.drawStr(20, 32 + 11 + 15, timstep.c_str());

  u8g2.setFont(u8g2_font_artosserif8_8r);
  u8g2.drawStr(0, 20, "Pesan diterima :");
  u8g2.drawStr(0, 30, pesan.c_str());
  //u8g2.drawStr(0, 40, "Siap Untuk Sinkronisasi");
}
void node1(void) {
  u8g2.setFont(u8g2_font_amstrad_cpc_extended_8f);/////////////Font Bagus
  u8g2.drawStr(0, 20, "Long : 1234567");
  //u8g2.setFont(u8g2_font_u8glib_4_tf);
  u8g2.drawStr(0, 29, "Lati : 1234567");
  //u8g2.setFont(u8g2_font_6x10_mf);
  u8g2.drawStr(0, 38, "Alti : 123 mdpl");
  //u8g2.setFont(u8g2_font_6x10_mf);
  u8g2.drawStr(0, 47, "Wind : 123 km/j");
}
void node2(void) {
  u8g2.setFont(u8g2_font_artosserif8_8r);
  u8g2.drawStr(0, 20, "Long : 1234567");
  //u8g2.setFont(u8g2_font_u8glib_4_tf);
  u8g2.drawStr(0, 29, "Lati : 1234567");
  //u8g2.setFont(u8g2_font_6x10_mf);
  u8g2.drawStr(0, 38, "Alti : 123 mdpl");
  //u8g2.setFont(u8g2_font_6x10_mf);
  u8g2.drawStr(0, 47, "Wind : 123 km/j");
}
void turu(void) {
  u8g2.setFont(u8g2_font_6x10_mf);
  u8g2.drawStr(0, 20, "Tekan Lagi");
  u8g2.drawStr(0, 30, "Untuk Mode ");
  u8g2.drawStr(0, 40, "Tidur ");
}
void setwaktu(void) {
  String dis_waktu = String(jam_up) + ":" + String(menit_up) + ":" + String(detik_up);
  String dis_tanggal = String(tanggal) + "/" + String(bulan) + "/" + String(tahun);
  //String dis_timstep = String(timstep);

  u8g2.setFont(u8g2_font_logisoso20_tf);
  u8g2.drawStr(15, 21, dis_waktu.c_str());
  u8g2.setFont(u8g2_font_amstrad_cpc_extended_8f);
  u8g2.drawStr(25, 32, hari.c_str());
  u8g2.drawStr(25, 32 + 11, dis_tanggal.c_str());
  u8g2.drawStr(20, 32 + 11 + 15, timstep.c_str());
}
void gelap(void) {
  //u8g2.setFont(u8g2_font_artosserif8_8r);
  //u8g2.drawStr(0, 18, "Long : 1234567");
}

//|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| SET WAKTU |||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||

void set_waktu() {
  DateTime now = rtc.now();

  if ((digitalRead(BUTTON_DOWN_PIN) == LOW) && (tombol_ok_sinkron == 0)) { // select button clicked, jump between screens
    tombol_ok_sinkron = 1; // set button to clicked to only perform the action once
    if (aksi_sekarang == 0) {
      aksi_sekarang = 1;
    }
    else if (aksi_sekarang == 1) {
      aksi_sekarang = 2;
    }
    else if (aksi_sekarang == 2) {
      aksi_sekarang = 3;
    }
    else if (aksi_sekarang == 3) {
      aksi_sekarang = 4;
    }
    else if (aksi_sekarang == 4) {
      aksi_sekarang = 5;
    }
    else if (aksi_sekarang == 5) {
      aksi_sekarang = 6;
    }
    else if (aksi_sekarang == 6) {
      aksi_sekarang = 7;
    }
    else {
      aksi_sekarang = 0;
    }
  }
  if ((digitalRead(BUTTON_DOWN_PIN) == HIGH) && (tombol_ok_sinkron == 1)) { // unclick
    tombol_ok_sinkron = 0;
  }
  //u8g2.clearBuffer();  // clear buffer for storing display content in RAM
  if (aksi_sekarang == 0) { // MENU SCREEN
    tahun = now.year();
    bulan = now.month();
    tanggal = now.day();
    jam = now.hour();
    menit = now.minute();
    detik = now.second();
    timstep = now.timestamp();
    hari = String(daysOfTheWeek[now.dayOfTheWeek()]);
    jam_up = String(jam);
    menit_up = String(menit);
    detik_up = String(detik);
    if (jam < 10) {
      jam_up = "0" + String(jam);
    }
    if (menit < 10) {
      menit_up = "0" + String(menit);
    }
    if (detik < 10) {
      detik_up = "0" + String(detik);
    }
    setwaktu();
  }
  //GANTI TANGGAL
  else if (aksi_sekarang == 1) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      tanggal++;
      if (tanggal > 31) {
        tanggal = 1;
      }
    }
    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }

  //GANTI BULAN
  else if (aksi_sekarang == 2) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      bulan ++;
      if (bulan > 12) {
        bulan = 1;
      }
    }
    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }

  //GANTI TAHUN
  else if (aksi_sekarang == 3) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      tahun ++;
      if (tahun > 2030) {
        tahun = 2020;
      }
    }
    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }

  //GANTI JAM
  else if (aksi_sekarang == 4) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      jam ++;
      if (jam > 23) {
        jam = 1;
      }
      jam_up = String(jam);
    }

    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }
  //GANTI MENIT
  else if (aksi_sekarang == 5) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      menit ++;
      if (menit > 59) {
        menit = 1;
      }
      menit_up = String(menit);
    }

    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }
  //GANTI DETIK
  else if (aksi_sekarang == 6) {
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (tombol_up == 0)) { // up button clicked - jump to previous menu item
      tombol_up = 1; // set button to clicked to only perform the action once
      detik ++;
      if (detik > 59) {
        detik = 1;
      }
      detik_up = String(detik);
    }

    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (tombol_up == 1)) { // unclick
      tombol_up = 0;
    }
    setwaktu();
  }

  else if (aksi_sekarang == 7) {
    //rtc.setTime();  // SS,MM,HH,Date,Month,Year
    rtc.adjust(DateTime(tahun, bulan, tanggal, jam, menit, detik));
    setwaktu();
    aksi_sekarang = 0;
  }
  //setwaktu();
}

//||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| END SET WAKTU ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
void printParameters(struct Configuration configuration);
void printModuleInformation(struct ModuleInformation moduleInformation);
// -----------------------------------------------------------------------------------------------------------
void setup() {
  Serial.begin(9600);
  //LORA
  ResponseStructContainer c;
  c = e220ttl.getConfiguration();
  // It's important get configuration pointer before all other operation
  Configuration configuration = *(Configuration*) c.data;
  Serial.println(c.status.getResponseDescription());
  Serial.println(c.status.code);
  printParameters(configuration);
  ////////////////////////////////////////////////////////////////////////////////////////
  //----------------------- FIXED RECEIVER RSSI -----------------------
  configuration.ADDL = 0x03;
  configuration.ADDH = 0x00;
  configuration.CHAN = 23;

  configuration.SPED.uartBaudRate = UART_BPS_9600;
  configuration.SPED.airDataRate = AIR_DATA_RATE_010_24;
  configuration.SPED.uartParity = MODE_00_8N1;

  configuration.OPTION.subPacketSetting = SPS_200_00;
  configuration.OPTION.RSSIAmbientNoise = RSSI_AMBIENT_NOISE_DISABLED;
  configuration.OPTION.transmissionPower = POWER_22;

  configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
  configuration.TRANSMISSION_MODE.fixedTransmission = FT_FIXED_TRANSMISSION;
  configuration.TRANSMISSION_MODE.enableLBT = LBT_DISABLED;
  configuration.TRANSMISSION_MODE.WORPeriod = WOR_2000_011;

  ResponseStatus rs = e220ttl.setConfiguration(configuration, WRITE_CFG_PWR_DWN_SAVE);
  //Serial.println(rs.getResponseDescription());
 // Serial.println(rs.code);
  c.close();
  ////////////////////////////////////////////////////////////////////////////////////////

  u8g2.setColorIndex(1);  // set the color to white
  u8g2.begin();
  u8g2.setBitmapMode(1);

  //RTC
  rtc.begin();

  // define pins for buttons
  // INPUT_PULLUP means the button is HIGH when not pressed, and LOW when pressed
  // since it´s connected between some pin and GND
  pinMode(BUTTON_UP_PIN, INPUT_PULLUP); // up button
  pinMode(BUTTON_SELECT_PIN, INPUT_PULLUP); // select button
  pinMode(BUTTON_DOWN_PIN, INPUT_PULLUP); // down button

  // MicroSD Card
  if (!SD.begin()) {
    Serial.println("Card Mount Failed");
    return;
  }
  //deleteFile(SD, "/datalog.txt");
  File file = SD.open("/databasis.txt");
  if (!file) {
    Serial.println("File doesn't exist");
    Serial.println("Creating file...");
    writeFile(SD, "/databasis.txt", "Apasih gajelas banget \r\n");
  }
  else {
    Serial.println("File already exists");
  }
  appendFile(SD, "/databasis.txt", "| Tanggal | Hrate | Suhu | Latitude | Longitude | Altitude|\r\n");
  appendFile(SD, "/databasis.txt", "===========================================================\r\n");
  readFile(SD, "/databasis.txt");
  file.close();

  delay_rtc = millis();
  delaysd = millis();
}

void loop() {

  // when pin 13 is LOW (DEMO_PIN), enable demo mode
  // this could be done either by using a switch
  // or simply by connecting the wire between pin 13 and GND
  // (those pins are next to each other)
  if (current_screen == 0) { // MENU SCREEN

    // up and down buttons only work for the menu screen
    if ((digitalRead(BUTTON_UP_PIN) == LOW) && (button_up_clicked == 0)) { // up button clicked - jump to previous menu item
      item_selected = item_selected - 1; // select previous item
      button_up_clicked = 1; // set button to clicked to only perform the action once
      if (item_selected < 0) { // if first item was selected, jump to last item
        item_selected = NUM_ITEMS - 1;
      }
    }
    else if ((digitalRead(BUTTON_DOWN_PIN) == LOW) && (button_down_clicked == 0)) { // down button clicked - jump to next menu item
      item_selected = item_selected + 1; // select next item
      button_down_clicked = 1; // set button to clicked to only perform the action once
      if (item_selected >= NUM_ITEMS) { // last item was selected, jump to first menu item
        item_selected = 0;
      }
    }

    if ((digitalRead(BUTTON_UP_PIN) == HIGH) && (button_up_clicked == 1)) { // unclick
      button_up_clicked = 0;
    }
    if ((digitalRead(BUTTON_DOWN_PIN) == HIGH) && (button_down_clicked == 1)) { // unclick
      button_down_clicked = 0;
    }

  }

  if ((digitalRead(BUTTON_SELECT_PIN) == LOW) && (button_select_clicked == 0)) { // select button clicked, jump between screens
    button_select_clicked = 1; // set button to clicked to only perform the action once
    if (current_screen == 0) {
      current_screen = 1; // menu items screen --> screenshots screen
    }
    else if (current_screen == 1) {
      current_screen = 2; // screenshots screen --> qr codes screen
    }
    else {
      current_screen = 0; // qr codes screen --> menu items screen
    }
  }
  if ((digitalRead(BUTTON_SELECT_PIN) == HIGH) && (button_select_clicked == 1)) { // unclick
    button_select_clicked = 0;
  }

  // set correct values for the previous and next items
  item_sel_previous = item_selected - 1;
  if (item_sel_previous < 0) {
    item_sel_previous = NUM_ITEMS - 1; // previous item would be below first = make it the last
  }
  item_sel_next = item_selected + 1;
  if (item_sel_next >= NUM_ITEMS) {
    item_sel_next = 0; // next item would be after last = make it the first
  }

  u8g2.clearBuffer();  // clear buffer for storing display content in RAM

  if (current_screen == 0) { // MENU SCREEN

    // selected item background
    u8g2.drawXBMP(0, 22, 128, 21, bitmap_item_sel_outline);

    // draw previous item as icon + label
    u8g2.setFont(u8g_font_7x14);
    u8g2.drawStr(25, 15, menu_items[item_sel_previous]);
    u8g2.drawXBMP( 4, 2, 16, 16, bitmap_icons[item_sel_previous]);

    // draw selected item as icon + label in bold font
    u8g2.setFont(u8g_font_7x14B);
    u8g2.drawStr(25, 15 + 20 + 2, menu_items[item_selected]);
    u8g2.drawXBMP( 4, 24, 16, 16, bitmap_icons[item_selected]);

    // draw next item as icon + label
    u8g2.setFont(u8g_font_7x14);
    u8g2.drawStr(25, 15 + 20 + 20 + 2 + 2, menu_items[item_sel_next]);
    u8g2.drawXBMP( 4, 46, 16, 16, bitmap_icons[item_sel_next]);

    // draw scrollbar background
    u8g2.drawXBMP(128 - 8, 0, 8, 64, bitmap_scrollbar_background);

    // draw scrollbar handle
    u8g2.drawBox(125, 64 / NUM_ITEMS * item_selected, 3, 64 / NUM_ITEMS);

    // draw upir logo
    //u8g2.drawXBMP(128-16-4, 64-4, 16, 4, upir_logo);

  }
  else if (current_screen == 1) { // SCREENSHOTS SCREEN
    if (item_selected == 0) {
      sinkronisasi();
    }
    else if (item_selected == 1) {
      node1();
    }
    else if (item_selected == 2) {
      node2();
    }
    else if (item_selected == 3) {
      turu();
    }
    else if (item_selected == 4) {
      set_waktu();
    }
  }
  else if (current_screen == 2) { // QR SCREEN
    if (item_selected != 3) {
      current_screen = 0;
    }
    else {
      //do nothing
    }
  }
  // Baca Pesan
  baca_pesan();

  // Kirim pesan Serial Monitor
  kirim_pesan();

  //Simpan setiap 10 detik
  if (millis() - delaysd > 10000) {
    //appendFile(SD, "/databasis.txt", simpan.c_str());
    simpan_data();
    detik = detik + 10;
    delaysd = millis();
  }

  u8g2.sendBuffer();
}

void kirim_pesan() {
  if (Serial.available()) {
    String input = Serial.readString();
    ResponseStatus rs = e220ttl.sendFixedMessage(0, NODESENSOR1, 23, input);
    // Check If there is some problem of succesfully send
   // Serial.println(rs.getResponseDescription());
  }
}

void baca_pesan() {
 if (e220ttl.available() > 1) {
    // read the String message
#ifdef ENABLE_RSSI
    ResponseContainer rc = e220ttl.receiveMessageRSSI();
#else
    ResponseContainer rc = e220ttl.receiveMessage();
#endif
    // Is something goes wrong print error
    if (rc.status.code != 1) {
      Serial.println(rc.status.getResponseDescription());
    } else {
      Print the data received
      Serial.println(rc.status.getResponseDescription());
      Serial.println(rc.data);
#ifdef ENABLE_RSSI
      Serial.print("RSSI: "); Serial.println(rc.rssi, DEC);
#endif
    }
    pesan = String(rc.data);
  }
}

void simpan_data() {
  DateTime now = rtc.now();
  simpan_waktu = String(daysOfTheWeek[now.dayOfTheWeek()]) + ", " + String(now.hour()) + ":" + String(now.minute()) + "|" + String(now.second()) + "\r\n";
  simpan_node1 = String("Node 1") + "|" + hrate1 + "|" + suhu1 + "|" + lon1 + "|" + lat1 + "|" + alt1 + "\r\n";
  simpan_node2 = String("Node 2") + "|" + hrate2 + "|" + suhu2 + "|" + lon2 + "|" + lat2 + "|" + alt2 + "\r\n";
  appendFile(SD, "/databasis.txt", simpan_waktu.c_str());
  appendFile(SD, "/databasis.txt", simpan_node1.c_str());
  appendFile(SD, "/databasis.txt", simpan_node2.c_str());
}

void printParameters(struct Configuration configuration) {
  Serial.println("----------------------------------------");

  Serial.print(F("HEAD : "));  Serial.print(configuration.COMMAND, HEX);Serial.print(" ");Serial.print(configuration.STARTING_ADDRESS, HEX);Serial.print(" ");Serial.println(configuration.LENGHT, HEX);
  Serial.println(F(" "));
  Serial.print(F("AddH : "));  Serial.println(configuration.ADDH, HEX);
  Serial.print(F("AddL : "));  Serial.println(configuration.ADDL, HEX);
  Serial.println(F(" "));
  Serial.print(F("Chan : "));  Serial.print(configuration.CHAN, DEC); Serial.print(" -> "); Serial.println(configuration.getChannelDescription());
  Serial.println(F(" "));
  Serial.print(F("SpeedParityBit     : "));  Serial.print(configuration.SPED.uartParity, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTParityDescription());
  Serial.print(F("SpeedUARTDatte     : "));  Serial.print(configuration.SPED.uartBaudRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getUARTBaudRateDescription());
  Serial.print(F("SpeedAirDataRate   : "));  Serial.print(configuration.SPED.airDataRate, BIN);Serial.print(" -> "); Serial.println(configuration.SPED.getAirDataRateDescription());
  Serial.println(F(" "));
  Serial.print(F("OptionSubPacketSett: "));  Serial.print(configuration.OPTION.subPacketSetting, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getSubPacketSetting());
  Serial.print(F("OptionTranPower    : "));  Serial.print(configuration.OPTION.transmissionPower, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getTransmissionPowerDescription());
  Serial.print(F("OptionRSSIAmbientNo: "));  Serial.print(configuration.OPTION.RSSIAmbientNoise, BIN);Serial.print(" -> "); Serial.println(configuration.OPTION.getRSSIAmbientNoiseEnable());
  Serial.println(F(" "));
  Serial.print(F("TransModeWORPeriod : "));  Serial.print(configuration.TRANSMISSION_MODE.WORPeriod, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getWORPeriodByParamsDescription());
  Serial.print(F("TransModeEnableLBT : "));  Serial.print(configuration.TRANSMISSION_MODE.enableLBT, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getLBTEnableByteDescription());
  Serial.print(F("TransModeEnableRSSI: "));  Serial.print(configuration.TRANSMISSION_MODE.enableRSSI, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getRSSIEnableByteDescription());
  Serial.print(F("TransModeFixedTrans: "));  Serial.print(configuration.TRANSMISSION_MODE.fixedTransmission, BIN);Serial.print(" -> "); Serial.println(configuration.TRANSMISSION_MODE.getFixedTransmissionDescription());
  Serial.println("----------------------------------------");
}
void printModuleInformation(struct ModuleInformation moduleInformation) {
  Serial.println("----------------------------------------");
  Serial.print(F("HEAD: "));  Serial.print(moduleInformation.COMMAND, HEX);Serial.print(" ");Serial.print(moduleInformation.STARTING_ADDRESS, HEX);Serial.print(" ");Serial.println(moduleInformation.LENGHT, DEC);
  Serial.print(F("Model no.: "));  Serial.println(moduleInformation.model, HEX);
  Serial.print(F("Version  : "));  Serial.println(moduleInformation.version, HEX);
  Serial.print(F("Features : "));  Serial.println(moduleInformation.features, HEX);
  Serial.println("----------------------------------------");
}

I’m sorry if my code appears messy.

27 December 2023 at 12:19 #28928
Renzo Mischianti
Keymaster
Hi Supachokhansaran,
you must clean your code by disabling the single features and checking who created the problem.

If you want more information about stack trace, and check It detal.
```
tools\xtensa-esp32-elf\esp-2020r3-8.4.0\xtensa-esp32-elf\bin\xtensa-esp32-elf-addr2line.exe -fe C:\MYPROJECT\build\MYELF.elf 0x4000c269:0x3ffb7810 0x400d5327:0x3ffb7830 0x400d59a2:0x3ffb7850 0x400d600f:0x3ffb7b20 0x400d5039:0x3ffb7b40 0x400d3f17:0x3ffb7b80
```
or you can use Arduino IDE plugin.

Bye Renzo