使用Arduino Yun設計自動化插座

 

架構圖

主要功能

  1. Arduino 上線後要能夠向Server自動回報IP
  2. 透過web能夠設定相關設備

登入主機

  • 使用 root 當帳號,密碼為設定的密碼,預設為:arduino

查詢IP工具

  • 回傳內容範例:
{
  "ip": "140.109.222.63",
  "hostname": "No Hostname",
  "city": "Taoyuan",
  "region": "Taiwan",
  "country": "TW",
  "loc": "24.9869,121.3056",
  "org": "AS9264 Academic Sinica Network"
}

使用材料

KD20C40AX
* 接線方式
connection
* Arduino 接線
smart plug

使用函數庫

Arduino 程式碼

/*
  Arduino Y繳n Bridge example

  This example for the YunShield/Y繳n shows how 
  to use the Bridge library to access the digital and
  analog pins on the board through REST calls.
  It demonstrates how you can create your own API when
  using REST style calls through the browser.

  Possible commands created in this shetch:

  "/arduino/digital/13"     -> digitalRead(13)
  "/arduino/digital/13/1"   -> digitalWrite(13, HIGH)
  "/arduino/analog/2/123"   -> analogWrite(2, 123)
  "/arduino/analog/2"       -> analogRead(2)
  "/arduino/mode/13/input"  -> pinMode(13, INPUT)
  "/arduino/mode/13/output" -> pinMode(13, OUTPUT)

  This example code is part of the public domain

  http://www.arduino.cc/en/Tutorial/Bridge

*/

#include <Bridge.h>
#include <BridgeServer.h>
#include <BridgeClient.h>

// Listen to the default port 5555, the Y繳n webserver
// will forward there all the HTTP requests you send
BridgeServer server;

void setup() {
  // Bridge startup
  pinMode(13, OUTPUT);
  digitalWrite(13, LOW);
  Bridge.begin();
  digitalWrite(13, HIGH);

  // Listen for incoming connection only from localhost
  // (no one from the external network could connect)
  server.listenOnLocalhost();
  server.begin();
}

void loop() {
  // Get clients coming from server
  BridgeClient client = server.accept();

  // There is a new client?
  if (client) {
    // Process request
    process(client);

    // Close connection and free resources.
    client.stop();
  }

  delay(50); // Poll every 50ms
}

void process(BridgeClient client) {
  // read the command
  String command = client.readStringUntil('/');

  // is "digital" command?
  if (command == "digital") {
    digitalCommand(client);
  }

  // is "analog" command?
  if (command == "analog") {
    analogCommand(client);
  }

  // is "mode" command?
  if (command == "mode") {
    modeCommand(client);
  }
}

void digitalCommand(BridgeClient client) {
  int pin, value;

  // Read pin number
  pin = client.parseInt();

  // If the next character is a '/' it means we have an URL
  // with a value like: "/digital/13/1"
  if (client.read() == '/') {
    value = client.parseInt();
    digitalWrite(pin, value);
  } else {
    value = digitalRead(pin);
  }

  // Send feedback to client
  client.print(F("Pin D"));
  client.print(pin);
  client.print(F(" set to "));
  client.println(value);

  // Update datastore key with the current pin value
  String key = "D";
  key += pin;
  Bridge.put(key, String(value));
}

void analogCommand(BridgeClient client) {
  int pin, value;

  // Read pin number
  pin = client.parseInt();

  // If the next character is a '/' it means we have an URL
  // with a value like: "/analog/5/120"
  if (client.read() == '/') {
    // Read value and execute command
    value = client.parseInt();
    analogWrite(pin, value);

    // Send feedback to client
    client.print(F("Pin D"));
    client.print(pin);
    client.print(F(" set to analog "));
    client.println(value);

    // Update datastore key with the current pin value
    String key = "D";
    key += pin;
    Bridge.put(key, String(value));
  } else {
    // Read analog pin
    value = analogRead(pin);

    // Send feedback to client
    client.print(F("Pin A"));
    client.print(pin);
    client.print(F(" reads analog "));
    client.println(value);

    // Update datastore key with the current pin value
    String key = "A";
    key += pin;
    Bridge.put(key, String(value));
  }
}

void modeCommand(BridgeClient client) {
  int pin;

  // Read pin number
  pin = client.parseInt();

  // If the next character is not a '/' we have a malformed URL
  if (client.read() != '/') {
    client.println(F("error"));
    return;
  }

  String mode = client.readStringUntil('\r');

  if (mode == "input") {
    pinMode(pin, INPUT);
    // Send feedback to client
    client.print(F("Pin D"));
    client.print(pin);
    client.print(F(" configured as INPUT!"));
    return;
  }

  if (mode == "output") {
    pinMode(pin, OUTPUT);
    // Send feedback to client
    client.print(F("Pin D"));
    client.print(pin);
    client.print(F(" configured as OUTPUT!"));
    return;
  }

  client.print(F("error: invalid mode "));
  client.print(mode);
}

參考資料