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v1.2.0 to add complex examples
### Releases v1.2.0 1. Add complex auto-reconnect `AsyncTCPClient` and `AsyncTCP_Server` examples 2. Improve `README.md` so that links can be used in other sites, such as `PIO`
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‎CONTRIBUTING.md

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@@ -10,12 +10,14 @@ However, before reporting a bug please check through the following:
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If you don't find anything, please [open a new issue](https://github.com/khoih-prog/AsyncTCP_RP2040W/issues/new).
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---
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### How to submit a bug report
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Please ensure to specify the following:
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* Arduino IDE version (e.g. 1.8.19) or Platform.io version
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* `RP2040` Core Version (e.g. RP2040 core v2.5.4)
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* `RP2040` Core Version (e.g. RP2040 core v2.7.1)
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* `RP2040` Board type (e.g. RASPBERRY_PI_PICO_W)
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* Contextual information (e.g. what you were trying to achieve)
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* Simplest possible steps to reproduce
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* Network configuration
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Please be educated, civilized and constructive as you've always been. Disrespective posts against [GitHub Code of Conduct](https://docs.github.com/en/site-policy/github-terms/github-event-code-of-conduct) will be ignored and deleted.
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---
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### Example
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```
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Arduino IDE version: 1.8.19
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RP2040 core v2.5.4
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RP2040 core v2.7.1
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RASPBERRY_PI_PICO_W Module
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OS: Ubuntu 20.04 LTS
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Linux xy-Inspiron-3593 5.15.0-46-generic #49~20.04.1-Ubuntu SMP Thu Aug 4 19:15:44 UTC 2022 x86_64 x86_64 x86_64 GNU/Linux
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Linux xy-Inspiron-3593 5.15.0-58-generic #64~20.04.1-Ubuntu SMP Fri Jan 6 16:42:31 UTC 2023 x86_64 x86_64 x86_64 GNU/Linux
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Context:
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I encountered a crash while using Async_AdvancedWebServer
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I encountered a crash while using this library
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Steps to reproduce:
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1. ...

‎changelog.md

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## Table of Contents
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* [Changelog](#changelog)
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* [Releases v1.2.0](#Releases-v120)
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* [Releases v1.1.0](#Releases-v110)
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* [Initial Releases v1.0.0](#Initial-Releases-v100)
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## Changelog
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### Releases v1.2.0
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1. Add complex auto-reconnect `AsyncTCPClient` and `AsyncTCP_Server` examples
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2. Improve `README.md` so that links can be used in other sites, such as `PIO`
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### Releases v1.1.0
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1. Fix issue with slow browsers or network

‎examples/ClientServer/AsyncTCP_Client/AsyncTCP_Client.ino

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/****************************************************************************************************************************
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AsyncTCPClient.ino
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For RP2040W with CYW43439 WiFi
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AsyncTCP_RP2040W is a library for the RP2040W with CYW43439 WiFi
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Based on and modified from ESPAsyncWebServer (https://github.com/me-no-dev/ESPAsyncWebServer)
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Built by Khoi Hoang https://github.com/khoih-prog/AsyncTCP_RP2040W
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Licensed under GPLv3 license
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*****************************************************************************************************************************/
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#include <AsyncTCP_RP2040W.h>
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char ssid[] = "your_ssid"; // your network SSID (name)
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char pass[] = "12345678"; // your network password (use for WPA, or use as key for WEP), length must be 8+
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int status = WL_IDLE_STATUS;
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// Change the Server IPAddress accordingly
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IPAddress serverIP(192, 168, 2, 128);
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#define TCP_PORT 5698
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#define CHECK_INTERVAL_MS 1000L // Check connection
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#define SEND_INTERVAL_MS 10000L // delay between updates, in milliseconds
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unsigned long lastCheck = SEND_INTERVAL_MS; // last time you connected to the server, in milliseconds
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AsyncClient* client = nullptr;
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bool clientConnected = false;
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bool dataReceived = false;
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#define REPLY_SIZE 64
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static void replyToServer(void* arg)
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{
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(void) arg;
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Serial.println("\n********************");
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Serial.println("New replyToServer");
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AsyncClient* client = reinterpret_cast<AsyncClient*>(arg);
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// send reply
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if (client->space() > REPLY_SIZE && client->canSend())
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{
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char message[REPLY_SIZE];
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sprintf(message, "This is from AsyncTCPClient @ %s", WiFi.localIP().toString().c_str());
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client->add(message, strlen(message));
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client->send();
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dataReceived = false;
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}
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}
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/* event callbacks */
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static void handleData(void* arg, AsyncClient* client, void *data, size_t len)
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{
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(void) arg;
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Serial.printf("\nData received from %s \n", client->remoteIP().toString().c_str());
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Serial.write((uint8_t*)data, len);
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lastCheck = millis();
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dataReceived = true;
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}
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void onConnect(void* arg, AsyncClient* client)
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{
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(void) arg;
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clientConnected = true;
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Serial.printf("\nAsyncTCPClient has been connected to Server %s, port %d \n", serverIP.toString().c_str(), TCP_PORT);
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replyToServer(client);
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}
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void onDisconnect(void* arg, AsyncClient* client)
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{
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(void) arg;
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(void) client;
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Serial.printf("\nAsyncTCPClient has been disconnected from Server %s, port %d \n", serverIP.toString().c_str(), TCP_PORT);
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clientConnected = false;
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}
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void printWifiStatus()
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{
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// print the SSID of the network you're attached to:
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Serial.print("SSID: ");
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Serial.println(WiFi.SSID());
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// print your board's IP address:
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IPAddress ip = WiFi.localIP();
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Serial.print("Local IP Address: ");
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Serial.println(ip);
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}
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bool connectServer()
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{
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if (client)
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delete(client);
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client = new AsyncClient;
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if (client)
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{
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client->onData(&handleData, client);
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client->onConnect(&onConnect, client);
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client->onDisconnect(&onDisconnect, client);
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client->connect(serverIP, TCP_PORT);
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return true;
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}
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else
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{
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Serial.println("\nError, NULL client");
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return false;
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}
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}
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void setup()
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{
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Serial.begin(115200);
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while (!Serial && millis() < 5000);
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delay(200);
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Serial.print("\nStart AsyncTCP_Client on ");
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Serial.print(BOARD_NAME);
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Serial.print(" with ");
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Serial.println(SHIELD_TYPE);
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Serial.println(ASYNCTCP_RP2040W_VERSION);
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///////////////////////////////////
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// check for the WiFi module:
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if (WiFi.status() == WL_NO_MODULE)
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{
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Serial.println("Communication with WiFi module failed!");
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// don't continue
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while (true);
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}
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Serial.print(F("Connecting to SSID: "));
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Serial.println(ssid);
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status = WiFi.begin(ssid, pass);
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delay(1000);
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// attempt to connect to WiFi network
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while ( status != WL_CONNECTED)
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{
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delay(500);
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// Connect to WPA/WPA2 network
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status = WiFi.status();
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}
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printWifiStatus();
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///////////////////////////////////
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connectServer();
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lastCheck = millis();
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}
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void loop()
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{
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static unsigned long lastConnectCheck = CHECK_INTERVAL_MS;
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if (millis() - lastCheck > SEND_INTERVAL_MS)
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{
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if (clientConnected && dataReceived)
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{
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replyToServer(client);
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}
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else if ( !clientConnected || !dataReceived )
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{
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Serial.printf("\nReconnecting to Server %s, port %d \n", serverIP.toString().c_str(), TCP_PORT);
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connectServer();
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}
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lastCheck = millis();
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}
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}

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