giovani-plantae / esp32-async-soft-ap

Asynchronous ESP32 soft-ap learning project

Async TCP Server with ESP32

This project is a simple example of an asynchronous TCP server using the ESP32 microcontroller. It allows you to set up a local server and handle client connections.

Initial Setup

Before using this project, you need to perform an initial configuration:

1. Rename the include/config-example.h file to include/config.h.

2. Open the include/config.h file and populate the following constants with your network and server details:

#ifndef CONFIG_H
#define CONFIG_H

#define NETWORK_SSID "Your_WiFi_SSID"
#define NETWORK_PASS "Your_WiFi_Password"

#define DNS_PORT 53
#define DNS_HOSTNAME "Your_DNS_Hostname"

#define TCP_SERVER_PORT 8000

#endif

Consuming

To consume this project, I've prepared a simple Node.js example. Follow these steps:

• Create a new directory somewhere, and open the directory in your terminal;

• Start a new Node.js project and set it type to module:

npm init -y
npm pkg set type="module"

• Create a file named index.js at the root of your project and paste the following content:

import { Socket } from 'net';
import REPL from 'repl';

const host = '192.168.4.1';
const port = 8000;

const client = new Socket();
client.connect(port, host, () => console.log('Connected to the server'));
client.on('data', data => console.log(`Data received from the server: ${data}`));
client.on('close', () => console.log('Connection closed'));

const send = msg => client.write(`${msg}\n`);

const repl = REPL.start('> ');
repl.context.send = send;

• Start the project by running

node index.js

• After starting the project, you can use the REPL to interact with the server. The send function allows you to send messages to the server by typing them in the REPL prompt.

send('cmd')