SIM800L ESP32 GSM Module: How to send link through SMS

Projects Programming
1

Hi everyone. I am still new in this area. Please help me :cry:
I have a question where I run the program but there is none of output display at the serial monitor.

I'm using SIM800L ESP32 GSM module as microcontroller. I connect Piezoelectric Shock Sensor and GPS module at the GSM module. Here is the program code:

#include <SoftwareSerial.h>
#include <TinyGPS++.h>
#define SIM800L_AXP192_VERSION_20200327

#define DUMP_AT_COMMANDS
#define TINY_GSM_DEBUG          SerialMon

#include "utilities.h"

#define SerialMon Serial

#define SerialAT  Serial1

// Configure TinyGSM library
#define TINY_GSM_MODEM_SIM800          // Modem is SIM800
#define TINY_GSM_RX_BUFFER      1024   // Set RX buffer to 1Kb

#include <TinyGsmClient.h>

#ifdef DUMP_AT_COMMANDS
#include <StreamDebugger.h>
StreamDebugger debugger(SerialAT, SerialMon);
TinyGsm modem(debugger);
#else
TinyGsm modem(SerialAT);
#endif

// Set phone numbers, if you want to test SMS and Calls
#define SMS_TARGET  "<REDACTED>"
#define CALL_TARGET "<REDACTED>"

SoftwareSerial ss(18, 19);  // RX, TX pins for GPS module
TinyGPSPlus gps;

void setup() {
  Serial.begin(115200);
  ss.begin(115200);
     // Set console baud rate
  SerialMon.begin(115200);

  //delay(10);

    // Start power management
    if (setupPMU() == false) {
        Serial.println("Setting power error");
    }
   // Some start operations
  setupModem();

    // Set GSM module baud rate and UART pins
  SerialAT.begin(115200, SERIAL_8N1, MODEM_RX, MODEM_TX);

  //delay(6000);
}

void loop() {
  int val = analogRead(27);  // Connect the analog piezoelectric ceramic vibration sensor to analog pin 27

  // Serial.print("value: ");
  // Serial.println(val,DEC);

  if (val >= 300) {
    while (ss.available() > 0) {
      if (gps.encode(ss.read())) {
        if (gps.location.isValid()) {
          float latitude = gps.location.lat();
          float longitude = gps.location.lng(); 
          
          Serial.print("value force: ");
          Serial.println(val,DEC);

          Serial.print("Latitude: ");
          Serial.println(latitude, 6);
          Serial.print("Longitude: ");
          Serial.println(longitude, 6);
          Serial.println(" ");

          // Restart takes quite some time
          // To skip it, call init() instead of restart()
          SerialMon.println("Initializing modem...");
          modem.restart();


          //delay(10000); //delay execution for 10 second (10000ms -->10s)

          String imei = modem.getIMEI();
          //DBG("IMEI:", imei);

          bool res = modem.sendSMS(SMS_TARGET, String("Alert Notification!\nYour motorcycle is in danger. Please check your motorcycle location below: ") );
        }
      }
    }
  }

  delay(100);
}

I also import 2 header file which is StreamDebugger.h and utilities.h.
How should i fix this issues?

Thanks.

2

Post links to the exact hardware you use! Post a wiring diagram!

Explain where the MODEM_RX and MODEM_TX values are from. In the standard ESP32 core there is no variant that would define them. What variant do you choose to compile?

4

I cannot find that error in your post.

6

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