【应用教程】七夕-I'm with you 物联网装置 简单

#include <ThingSpeak.h>
#include <ESP8266WiFi.h>      
//needed for library
#include <DNSServer.h>
#include <ESP8266WebServer.h>
#include <WiFiManager.h>
 
#define grayscalePin D8
// Network Parameters
const char* ssid     = "DFRobot-guest";
const char* password = "dfrobot@2017";
 
// ThingSpeak information
char thingSpeakAddress[] = "api.thingspeak.com";
const char* server = "api.thingspeak.com";
unsigned long channelID = 541489;
char* readAPIKey = "TY5KLRMTB5E311RX";
char* writeAPIKey = "J1XHZ98DG0PGHKGW";
String apiKey = "TY5KLRMTB5E311RX";
const unsigned long postingInterval = 120L * 1000L;
unsigned int FieldLabelone= 1;                            // Field to write temperature data
unsigned long lastConnectionTime = 0;
long lastUpdateTime = 0; 
WiFiClient client;
float readTSData( long TSChannel,unsigned int TSField ){
     
  float data =  ThingSpeak.readFloatField( TSChannel, TSField, readAPIKey );
  Serial.println( " Data read from ThingSpeak: " + String( data, 9 ) );
  return data;
   
}
 
// Use this function if you want to write a single field
int writeTSData( long TSChannel, unsigned int TSField, float data ){
  int  writeSuccess = ThingSpeak.writeField( TSChannel, TSField, data, writeAPIKey ); // Write the data to the channel
  if ( writeSuccess ){
     
    Serial.println( String(data) + " written to Thingspeak." );
    }
     
    return writeSuccess;
}
 
//use this function if you want multiple fields simultaneously
int write2TSData( long TSChannel, unsigned int TSField1, float field1Data, unsigned int TSField2, long field2Data, unsigned int TSField3, long field3Data ){
 
  ThingSpeak.setField( TSField1, field1Data );
  ThingSpeak.setField( TSField2, field2Data );
  ThingSpeak.setField( TSField3, field3Data );
    
  int writeSuccess = ThingSpeak.writeFields( TSChannel, writeAPIKey );
  return writeSuccess;
}
 
void setup()
{
 Serial.begin(115200);
 WiFi.begin(ssid, password);
Serial.println();
Serial.println();
Serial.print("Connecting to ");
Serial.println(ssid);
WiFi.begin(ssid, password);
while (WiFi.status() != WL_CONNECTED) {
delay(500);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected");
}
void loop()
{
int val = analogRead(A0);
delay(100);
if (client.connect(server,80)) { // "184.106.153.149" or api.thingspeak.com
String postStr = apiKey;
postStr +="&field1=";
postStr += String(val);
postStr += "\r\n\r\n";
client.print("POST /update HTTP/1.1\n");
client.print("Host: api.thingspeak.com\n");
client.print("Connection: close\n");
client.print("X-THINGSPEAKAPIKEY: "+apiKey+"\n");
client.print("Content-Type: application/x-www-form-urlencoded\n");
client.print("Content-Length: ");
client.print(postStr.length());
client.print("\n\n");
client.print(postStr);
Serial.println(postStr);
Serial.println(val);
  }
client.stop();
Serial.println("Waiting…");
// thingspeak needs minimum 15 sec delay between updates
delay(2000);
}
int connectWiFi(){
     
    while (WiFi.status() != WL_CONNECTED) {
       
        WiFi.begin( ssid, password );
        delay(2500);
        Serial.println("Connecting to WiFi");
    }
     
    Serial.println( "Connected" );
    ThingSpeak.begin( client );
}

#include "config.h"
 
/************************ Example Starts Here *******************************/
 
// digital pin 5
#define LED_PIN D5
int DIR = D1;
int PWM = D2;
// set up the 'digital' feed
AdafruitIO_Feed *digital = io.feed("digital");
 
void setup() {
   
  pinMode(LED_PIN, OUTPUT);
  pinMode(DIR, OUTPUT);
  // start the serial connection
  Serial.begin(115200);
 
  // wait for serial monitor to open
  while(! Serial);
 
  // connect to io.adafruit.com
  Serial.print("Connecting to Adafruit IO");
  io.connect();
 
  // set up a message handler for the 'digital' feed.
  // the handleMessage function (defined below)
  // will be called whenever a message is
  // received from adafruit io.
  digital->onMessage(handleMessage);
 
  // wait for a connection
  while(io.status() < AIO_CONNECTED) {
    Serial.print(".");
    delay(500);
  }
 
  // we are connected
  Serial.println();
  Serial.println(io.statusText());
  digital->get();
 
}
 
void loop() {
 
  // io.run(); is required for all sketches.
  // it should always be present at the top of your loop
  // function. it keeps the client connected to
  // io.adafruit.com, and processes any incoming data.
  io.run();
 
}
 
// this function is called whenever an 'digital' feed message
// is received from Adafruit IO. it was attached to
// the 'digital' feed in the setup() function above.
void handleMessage(AdafruitIO_Data *data) {
 
  Serial.print("received <- ");
 
  if(data->toPinLevel() == HIGH)
    {
      Serial.println("HIGH");
      for( char i=0;i<10;i++)
      {
        digitalWrite(DIR, HIGH);       
        analogWrite(PWM, 150);
        delay(500);
      }
      digitalWrite(DIR, HIGH);       
      analogWrite(PWM, 0);
    }
  else
    {
      Serial.println("LOW");
      digitalWrite(DIR, HIGH);       
      analogWrite(PWM, 0);
    }
 
 
  digitalWrite(LED_PIN, data->toPinLevel());
}