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73 lines
2.1 KiB
C++
73 lines
2.1 KiB
C++
/*
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Pager Server
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The ESP8266WiFi library's WiFiServer and WiFiServerSecure
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work differently than WiFiServer and EthernetSever
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in Arduino networking libraries.
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This example demonstrates the ArduinoWiFiServer,
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which enhances the WiFiServer.
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ArduinoWiFiServer has available() behaving as documented
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and supports send-to-all-clients functionality, which
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is not implemented in ESP8266WiFi library's WiFiServer
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and WiFiServerSecure.
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The example is a simple server that echoes any incoming
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messages to all connected clients. Connect two or more
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telnet sessions to see how server.available() and
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server.print() work.
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created in September 2020 for ESP8266WiFi library
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by Juraj Andrassy https://github.com/jandrassy
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*/
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#include <ESP8266WiFi.h>
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#include <ArduinoWiFiServer.h>
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#ifndef STASSID
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#define STASSID "your-ssid"
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#define STAPSK "your-password"
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#endif
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const char* ssid = STASSID;
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const char* password = STAPSK;
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ArduinoWiFiServer server(2323);
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void setup() {
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Serial.begin(115200);
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Serial.println();
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Serial.print("Connecting to ");
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Serial.println(ssid);
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WiFi.begin(ssid, password);
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while (WiFi.status() != WL_CONNECTED) {
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delay(500);
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Serial.print(".");
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}
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server.begin();
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IPAddress ip = WiFi.localIP();
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Serial.println();
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Serial.println("Connected to WiFi network.");
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Serial.print("To access the server, connect with Telnet client to ");
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Serial.print(ip);
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Serial.println(" 2323");
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}
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void loop() {
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WiFiClient client = server.available(); // returns first client which has data to read or a 'false' client
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if (client) { // client is true only if it is connected and has data to read
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String s = client.readStringUntil('\n'); // read the message incoming from one of the clients
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s.trim(); // trim eventual \r
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Serial.println(s); // print the message to Serial Monitor
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client.print("echo: "); // this is only for the sending client
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server.println(s); // send the message to all connected clients
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server.flush(); // flush the buffers
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}
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}
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