/pppos-mgos-test

An application to test internet connectivity with GSM module using the PPPoS protocol

Primary LanguageCOtherNOASSERTION

PPPoS Example using Mongoose OS App

Overview

This app shows how to connect to the internet via a GSM modem using the PPP protocol.

Prereq

GPIO pins that are used for UART interface for ESP32:

  • UART 0

    • RX GPIO: 3
    • TX GPIO: 1

  • UART 1

    • RX GPIO: 25
    • TX GPIO: 26

  • UART 2

    • RX GPIO: 16
    • TX GPIO: 17

The hardware that we are using:

  • ESP32 Dev Board
  • SIM868 Module Board

Hardware Connections

  • UART 1 is used
  • Common GND for ESP32 and SIM868 module
  • GPIO15 of ESP32 is connected to GPIO7 (RPi Board) pin on SIM868 module. Pulling it low for 4 seconds and then pulling it high turns the module on.
  • Dedicated power supply to SIM868 is required otherwise it would keep restarting.

Details

PPP library automatically connects to the GPRS network and obtains an IP address.

Resources