:::
6. 新增Channels
7. Thingspeak程式
/*
OpenJumper WebServer Example
[url] http://www.openjumper.com/ethernet/ [/url]
顯示室內照度+開關燈控制
通過手機、平板、計算機等設備訪問
Arduino Server，就看到當前室內光線照度
在A0引腳連接光敏模塊，用於採集室內光線；在2號引腳連接LED模塊。
奈何col 2014.12.25
ng344 2018.05.09
*/
#include <SPI.h>
#include <Ethernet.h>
#include "DHT.h"
#define DHTPIN 2 // what digital pin we're connected to
#define DHTTYPE DHT21 // DHT 22 (AM2302), AM2321
DHT dht(DHTPIN, DHTTYPE);
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
byte gateway[] = { 203, 68, 102, 254 }; // internet access via router
byte subnet[] = { 255, 255, 255, 0 }; // 24bit Subnet Mask
byte dns1[] = {163,26,1,1};
IPAddress ip(203,68,102,217);
EthernetServer server(80);
EthernetClient client;
// ThingSpeak Settings
char thingSpeakAddress[] = "api.thingspeak.com";
String APIKey = "YCIX1HI3P48BGM6X"; // enter your channel's Write API Key
const int updateTSInterval = 20 * 1000; // 20 second interval at which to update ThingSpeak
// ifttt
char iftttAddress[] = "maker.ifttt.com";
String tttKey = "dZIsDaOk8yzMG8vaATmoRx";
const int updateiftttInterval = 30 * 1000; // 20 second interval at which to update ifttt
// Variable Setup
long tslastCT = 0;
long tttlastConnectionTime = 0;
void setup() {
Serial.begin(9600);
//初始化Ethernet通信
Ethernet.begin(mac, ip, dns1, gateway, subnet);
server.begin();
dht.begin();
Serial.print( "Server is at " );
Serial.println(Ethernet.localIP());
}
void loop() {
float h = dht.readHumidity();
float t = dht.readTemperature();
if (isnan(h) || isnan(t)) {
Serial.println("Failed to read from DHT sensor!");
return;
}
// 監聽連入的客戶端
client = server.available();
if (client) {
Serial.println( "new client" );
// boolean currentLineIsBlank = false ;
while (client.connected()) {
if (client.available()) {
SendHTML(h,t);
break ;
}
}
delay(1);
client.stop();
Serial.println( "client disonnected" );
}
// Update ThingSpeak
if ((millis() - tslastCT) > updateTSInterval) {
Serial.println( "Update ThingSpeak" );
updateThingSpeak("GET /update?api_key="+APIKey+"&field1="+String(t)+"&field2="+String(h));
}
/*
// Update ifttt
if ((millis() - tttlastConnectionTime > updateiftttInterval)) {
Serial.println( "Update ifttt" );
updateifttt("GET /trigger/sensortnic/with/key/"+tttKey+"?value1="+String(t)+"&value2="+String(h)+" HTTP/1.1\r\n");
}
*/
}
// 用於輸出HTML文本的函數
void SendHTML(float h, float t)
{
client.println( "HTTP/1.1 200 OK" );
client.println( "Content-Type: text/html" );
client.println( "Connection: close" );
client.println();
//client.println( "<!DOCTYPE HTML>" );
//client.println( "<html><head><meta charset=\"UTF-8\"><title>Arduino Web Server</title>" );
//client.println( "</head><body>" );
client.println("<prtg>");
client.println("<result><channel>Humidity</channel>");
client.print("<float>1</float><unit>%</unit><DecimalMode>2</DecimalMode><value>");
client.print(h);
client.println("</value></result>");
client.println("<result><channel>Temperature</channel>");
client.print("<float>1</float><unit>degree</unit><DecimalMode>2</DecimalMode><value>");
client.print(t);
client.println("</value></result>");
client.println("</prtg>");
//client.println( "</body></html>" );
}
void updateThingSpeak(String tsData) {
if ( !client.connect("api.thingspeak.com", 80)) {
Serial.println( "connection failed" );
return;
} else {
client.print(tsData);
Serial.println(tsData);
client.print("Host: api.thingspeak.com\r\n");
client.print("Connection: close\r\n\r\n");
client.stop();
tslastCT = millis();
}
}
void updateifttt(String tttData) {
if ( !client.connect("maker.ifttt.com", 80)) {
Serial.println( "connection failed" );
return;
} else {
Serial.println(tttData);
client.print(tttData + " HTTP/1.1\r\n" +
"Host: maker.ifttt.com\r\n" +
"Connection: close\r\n\r\n");
delay(100);
client.stop();
tttlastConnectionTime = millis();
}
}