4638628873
* Wait for client.available() to prevent ESP32 crashes * Removed user-specific SSID & passphrase
88 lines
1.9 KiB
C++
88 lines
1.9 KiB
C++
/*
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* This sketch sends a message to a TCP server
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*
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*/
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#include <WiFi.h>
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#include <WiFiMulti.h>
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WiFiMulti WiFiMulti;
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void setup()
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{
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Serial.begin(115200);
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delay(10);
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// We start by connecting to a WiFi network
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WiFiMulti.addAP("SSID", "passpasspass");
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Serial.println();
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Serial.println();
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Serial.print("Waiting for WiFi... ");
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while(WiFiMulti.run() != WL_CONNECTED) {
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Serial.print(".");
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delay(500);
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}
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Serial.println("");
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Serial.println("WiFi connected");
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Serial.println("IP address: ");
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Serial.println(WiFi.localIP());
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delay(500);
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}
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void loop()
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{
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// const uint16_t port = 80;
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// const char * host = "192.168.1.1"; // ip or dns
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const uint16_t port = 1337;
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const char * host = "192.168.1.10"; // ip or dns
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Serial.print("Connecting to ");
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Serial.println(host);
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// Use WiFiClient class to create TCP connections
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WiFiClient client;
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if (!client.connect(host, port)) {
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Serial.println("Connection failed.");
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Serial.println("Waiting 5 seconds before retrying...");
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delay(5000);
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return;
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}
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// This will send a request to the server
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//uncomment this line to send an arbitrary string to the server
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//client.print("Send this data to the server");
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//uncomment this line to send a basic document request to the server
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client.print("GET /index.html HTTP/1.1\n\n");
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int maxloops = 0;
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//wait for the server's reply to become available
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while (!client.available() && maxloops < 1000)
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{
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maxloops++;
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delay(1); //delay 1 msec
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}
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if (client.available() > 0)
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{
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//read back one line from the server
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String line = client.readStringUntil('\r');
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Serial.println(line);
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}
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else
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{
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Serial.println("client.available() timed out ");
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}
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Serial.println("Closing connection.");
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client.stop();
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Serial.println("Waiting 5 seconds before restarting...");
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delay(5000);
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}
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