https://github.com/podnet/pppos-mgos-test

An application to test internet connectivity with GSM module using the PPPoS protocol
https://github.com/podnet/pppos-mgos-test

c esp32 mongoose-os ppp pppos

Last synced: about 1 month ago
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An application to test internet connectivity with GSM module using the PPPoS protocol

• Host: GitHub
• URL: https://github.com/podnet/pppos-mgos-test
• Owner: Podnet
• License: other
• Created: 2020-05-27T09:45:20.000Z (about 6 years ago)
• Default Branch: master
• Last Pushed: 2020-05-28T09:14:13.000Z (about 6 years ago)
• Last Synced: 2025-07-02T16:51:17.749Z (11 months ago)
• Topics: c, esp32, mongoose-os, ppp, pppos
• Language: C
• Size: 2.93 KB
• Stars: 1
• Watchers: 1
• Forks: 1
• Open Issues: 1
• Metadata Files:
  • Readme: README.md
  • License: LICENSE

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README

          
# 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

  - https://simcom.ee/modules/gsm-gprs-gnss/sim868/