ESP32 and SIM7600 4G Module Project

This project demonstrates using an ESP32 and SIM7600 4G module to connect to a GPRS network and interact with a Firebase Realtime Database.

Features

• Connects ESP32 to the internet using the SIM7600 4G module.
• Utilizes Firebase for cloud storage and data management.
• Supports asynchronous data communication.
• Sends hardcoded sensor data (temperature and humidity) to Firebase.

Requirements

• ESP32 development board
• SIM7600 4G module
• Arduino IDE with the following libraries installed:
  • TinyGsm
  • FirebaseClient
  • ESP_SSLClient

Pin Configuration

ESP32 GPIO	SIM7600 Pin
GPIO16	TXD
GPIO17	RXD
GPIO5	PWRKEY
GPIO4	RESET

Setup Instructions

1. Hardware Setup:

   • Connect the ESP32 to the SIM7600 module using the pin configuration mentioned above.
   • Power the SIM7600 module and ensure it has a working SIM card with internet access.

2. Software Setup:

   • Install the Arduino IDE if not already installed.
   • Add the ESP32 board to the Arduino IDE.
   • Install the required libraries listed in the Requirements section.
   • Open the project code in the Arduino IDE.

3. Configuration:

   • Update the APN, API Key, User Email, User Password, and Firebase Database URL in the code:

     const char apn[] = "your_apn";
     #define API_KEY "your_api_key"
     #define USER_EMAIL "your_email"
     #define USER_PASSWORD "your_password"
     #define DATABASE_URL "your_firebase_database_url"

4. Upload the Code:

   • Connect the ESP32 to your computer via USB.
   • Select the appropriate board and port from the Tools menu.
   • Upload the code to the ESP32.

5. Monitor the Serial Output:

   • Open the Serial Monitor (set the baud rate to 115200).
   • The Serial Monitor will display logs about the modem initialization, network connection status, and Firebase interactions.

Notes

• Make sure your SIM card has internet access and the correct APN settings.
• Firebase authentication is required for the project to interact with the database.