ESP8266 Community Forum

Posted: **Thu Aug 11, 2016 4:33 pm**

I'm learning to use IFTTT, so I set up a simple sketch that connects to the site and triggers an event to send an e-mail. I'm still pretty new to this, so I'm basing my code off of the example here. (There's a lot of that code I don't use since I'm just sending an e-mail based off of some serial input and not connecting to the other components.) However, when I try to connect to port 80, it fails. The code itself isn't set up to give useful debug information, and I don't know how to correct that. I did try replacing the line

Code: Select allif (!client.connect(host, httpPort)

to

Code: Select allif (!client.connect(maker.ifttt.com, 80)

to see if it was because I was referencing something wrong, but I got the same result. Can someone assist? Either help me figure out how to get more useful debug information so I actually have an error I can google search, or help me figure out what I'm doing wrong? Thank you.

Here is my full code:

Code: Select all

#include <ESP8266WiFi.h>

const char* ssid = "HelloSweetie-2.4";
const char* password = "---";
const char* host = "maker.ifttt.com";
const char* apiKey = "dtroLxkk-EmuH6M31vPC7K";

String input = "";
String messageBody = "Body of test message.";

void setup() {
  Serial.begin(115200);
  delay(100);
  WiFi.begin(ssid,password);
}

void loop() {
  if (Serial.available()) {
    input = Serial.readString();
    delay(1000);
      if (input = "send") {
        Serial.println("Confirmed");
        Serial.print("Connecting to ");
        Serial.println(host);

        WiFiClient client;
        const int httpPort = 80;
        if (!client.connect(host, httpPort)) { //this section seems to be my problem
          Serial.println("Connection failed");
          return;
        }

        String url = "/trigger/send/with/key/";
        url += apiKey;

        Serial.print("Requesting URL: ");
        Serial.println(url);
        client.print(String("POST") + url + "HTTP/1.1\r\n" + "Host: " + host + "\r\n" +
          "Content-Type: application/x-www-form-urlencoded\r\n" + "Content-Length: 13\r\n\r\n" +
          "value1=" + messageBody + "\r\n");        
      } else {
        Serial.println("Invalid input. Try again.");
      }
    input = "";
  }
}

And here is the information from IFTTT on how to trigger the event (specific for my sending an e-mail event), for anyone not familiar with the site.

Can someone assist? Either help me figure out how to get more useful debug information so I actually have an error I can google search, or help me figure out what I'm doing wrong? Thank you.

ESP8266 Community Forum

Connection to port 80 failing

Connection to port 80 failing