ESP8266 Mongoose-OS Tutorials – TCP Web Server

Welcome to the ESP8266 Mongoose-OS Tutorials on the TCP Web Server. In this series of tutorials, we will explore how to create a TCP Web Server using the ESP8266 microcontroller and the Mongoose-OS firmware.

The ESP8266 is a powerful microcontroller known for its built-in WiFi capability, making it suitable for IoT (Internet of Things) projects. Mongoose-OS is an open-source firmware for microcontrollers that provides a development environment for building IoT applications. “ESP8266 Mongoose OS Tutorials TCP Web Server”

In this tutorial series, we will demonstrate how to create a TCP Web Server using Mongoose-OS on the ESP8266. We will cover topics such as setting up the development environment, writing code to create a TCP server, handling incoming connections, and sending data over the network.

Whether you’re a beginner or an experienced developer, these tutorials will provide you with the knowledge and skills to create your own TCP Web Server on the ESP8266 using Mongoose-OS.

Let’s get start!

TCP Web Server Uses

Use	Description
Data Logging	Logging data received from clients, such as sensor readings or system status updates, for later analysis or archival purposes.
Remote Monitoring	Providing remote access to real-time data, allowing users to monitor and control devices or systems from anywhere with an internet connection.
Home Automation	Controlling smart home devices remotely, such as lights, thermostats, or security cameras, to manage home environments more conveniently.
Industrial Control	Monitoring and controlling machinery, production processes, or environmental conditions in industrial settings, enabling remote access for maintenance.
IoT Applications	Exchanging data between connected IoT devices, gathering sensor data from remote locations, or controlling IoT devices remotely.
Communication	Facilitating communication between devices on a network, allowing them to exchange data, synchronize operations, or coordinate tasks.
Remote Configuration	Remotely configuring devices or systems, updating settings, adjusting parameters, or performing firmware upgrades without physical access to the device.
Real-Time Notifications	Sending real-time notifications to connected clients, such as alerts, alarms, or status updates, to keep users informed of important events.
Custom Applications	Building custom applications tailored to specific needs, such as remote control interfaces, monitoring dashboards, or interactive user interfaces.
Distributed Systems	Integrating into distributed systems or networked applications to enable communication and data exchange between multiple nodes or components.

Code

// https://www.aruneworld.com/embedded/espressif/esp8266/esp8266_mongoose-os/
// Tested By : Arun(20170430)
// Example Name : AEW_TCP_Web_Server.js
// Firmware : Mongoose OS for ESP32

//*******************************//

// This example demonstrates how to create a TCP echo server.
//
// To try this example,
// 1. Download mos tool from https://mongoose-os.com/software.html
// 2. Run mos tool and install Mongoose OS
// 3. In the UI, navigate to the Examples tab and load this example

// Load Mongoose OS API
load('api_net.js');

let port = '1234';

Net.bind(port, function(conn, ev, ev_data) {
    if (ev !== Net.EV_ACCEPT) return;
    Net.send(conn, JSON.stringify({a: 1, b: 'hey!'}));
    Net.close(conn);
}, true);

print('TCP server is listening on port ', port);

Code Explanation

Line(s)	Explanation
1-4	Comments providing information about the source of the code, the tester, example name, and firmware used.
7	Load the Mongoose OS API module to enable network functionality.
9	Define the port number (e.g., ‘1234’) on which the TCP server will listen for incoming connections.
11-18	Bind a TCP server to the specified port. When a connection is accepted, send a JSON-encoded message {a: 1, b: 'hey!'} to the client and close the connection.
15	Check if the event received is an accept event.
16	Send a JSON-encoded message {a: 1, b: 'hey!'} to the client.
17	Close the connection after sending the message.
19	Print a message indicating that the TCP server is listening on the specified port.

NEXT

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