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Arduinoからツイート＋Webサーバー化

Arduino

Last updated at 2021-01-23Posted at 2021-01-22

書きかけ

Arduino Nano EtherでツイートとWebサーバー化をします。

使用ボードはこちら
https://www.diymore.cc/products/enc28j60-ethernet-network-module-shield-v2-0-for-arduino

参考リンク
Tweet Library for Arduino
http://arduino-tweet.appspot.com/

Arduinoから温湿度をツイートする方法 - Grow up
https://knkomko.hatenablog.com/entry/2019/09/17/012226

# include <UIPEthernet.h>
# include <Twitter.h>

Twitter twitter("TWITTER_TOKEN");

byte mac[] = { 0x90, 0xA2, 0xDA, 0x0D, 0x78, 0xEE  };  
IPAddress ip(192, 168, 0, 117);
IPAddress myDns(192, 168, 0, 1);
                        
EthernetServer server(80);

void setup() {

  Serial.begin(9600);

  Ethernet.begin(mac, ip, myDns);
  Serial.print("IP Address: ");
  Serial.println(Ethernet.localIP());

  server.begin();
  
  String message = "Hello, World! from Arduino Nano ethernet a :-) #Arduino";

  char* msg = message.c_str();
  Serial.print("connecting ...");

  if (twitter.post(msg)) {
    int status = 0;
    status = twitter.wait();
    if (status == 200) {
      Serial.println("OK.");
    } else {
      Serial.print("failed : code ");
      Serial.println(status);
    }
  } else {
    Serial.println("connection failed.");
  }

}

void loop() {

  // listen for incoming clients
  EthernetClient client = server.available();

  if (client)
  {  
    Serial.println("-> New Connection");

    // an http request ends with a blank line
    boolean currentLineIsBlank = true;

    while (client.connected())
    {
      if (client.available())
      {
        char c = client.read();

        // if you've gotten to the end of the line (received a newline
        // character) and the line is blank, the http request has ended,
        // so you can send a reply
        if (c == '\n' && currentLineIsBlank)
        {
          client.println("<html><title>Hello World!</title><body><h3>Hello World!</h3></body>");
          break;
        }

        if (c == '\n') {
          // you're starting a new line
          currentLineIsBlank = true;
        }
        else if (c != '\r')
        {
          // you've gotten a character on the current line
          currentLineIsBlank = false;
        }
      }
    }

    // give the web browser time to receive the data
    delay(10);

    // close the connection:
    client.stop();
    Serial.println("   Disconnected\n");
  }
}
~~~~

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