webDht11ThingspeakThreeLEDvarableRegistance
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//webDht11ThingspeakThreeLEDvarableRegistance
#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>
#include "DHT.h"
#define led_red D1 //D1 連接上 led的紅色引腳
#define led_green D2
#define led_blue D3
#define led_red_brightness 200 //紅色通道數值 0~255
#define led_green_brightness 0
#define led_blue_brightness 200
float multipleNumber = 1.0;//等比例調整亮度
int sensorPin = A0; //類比輸入的PIN腳 電阻中間腳位->A0
float sensorValue = 0; // 類比輸入得到的數值
// Uncomment one of the lines below for whatever DHT sensor type you're using!
#define DHTTYPE DHT11 // DHT 11
//#define DHTTYPE DHT21 // DHT 21 (AM2301)
//#define DHTTYPE DHT22 // DHT 22 (AM2302), AM2321
/*Put your SSID & Password*/
const char* ssid = "wifi名字aaa"; // Enter SSID here
const char* password = "wifi密碼bbb"; //Enter Password here
ESP8266WebServer server(80);
// DHT Sensor
uint8_t DHTPin = D6;
// Initialize DHT sensor.
DHT dht(DHTPin, DHTTYPE);
float Temperature;
float Humidity;
//thingspeak
#define HOST "api.thingspeak.com" // ThingSpeak IP Address: 184.106.153.149
#define PORT 80
const char* resource = "/update?api_key=";
String APIKEY = "ccc"; //寫入需要的Write API Key
void setup() {
Serial.begin(9600);
delay(100);
pinMode(DHTPin, INPUT);
dht.begin();
Serial.println("Connecting to ");
Serial.println(ssid);
//connect to your local wi-fi network
WiFi.begin(ssid, password);
//check wi-fi is connected to wi-fi network
while (WiFi.status() != WL_CONNECTED) {
delay(1000);
Serial.print(".");
}
Serial.println("");
Serial.println("WiFi connected..!");
Serial.print("Got IP: "); Serial.println(WiFi.localIP());
server.on("/", handle_OnConnect);
server.onNotFound(handle_NotFound);
server.begin();
Serial.println("HTTP server started");
pinMode(led_red,OUTPUT); //設置爲輸出模式
pinMode(led_green,OUTPUT);
pinMode(led_blue,OUTPUT);
pinMode(D4, OUTPUT);//多餘的內建LED
analogWrite(led_red,0); //首先，先把所有的燈都關閉
analogWrite(led_green,0); //可以隨意設置開啓關閉哪些燈，搭配出不同組合有不同顏色
analogWrite(led_blue,255);
delay(5000);
}
void loop() {
server.handleClient();
updateDHT22();
// digitalWrite(D0, HIGH); //設定D0腳位高電壓（就是通電）
digitalWrite(D4, HIGH); //設定D4腳位高電壓（就是通電）
// analogWrite(led_red,0);
// analogWrite(led_green,200);
// analogWrite(led_blue,0);
// delay(2000);
// analogWrite(led_red,0);
// analogWrite(led_green,0);
// analogWrite(led_blue,200);
// delay(2000);
sensorValue = analogRead(sensorPin); //讀取類比輸入的值會得到0~1023
Serial.print("可變電阻類比輸入:");
Serial.println(sensorValue);
sensorValue = map(sensorValue,0,1023,0,255); //將0~1023轉化成0~255
Serial.print("可變電阻類比輸入轉化區間:");
Serial.println(sensorValue);
multipleNumber = sensorValue/255;
Serial.print("亮度調整值:");
Serial.println(multipleNumber);
analogWrite(led_red,led_red_brightness*multipleNumber); //將結果用PWM的方式輸出給LED，改變亮度
analogWrite(led_green,led_green_brightness*multipleNumber);
analogWrite(led_blue,led_blue_brightness*multipleNumber);
delay(2000);
}
void handle_OnConnect() {
Temperature = dht.readTemperature(); // Gets the values of the temperature
Humidity = dht.readHumidity(); // Gets the values of the humidity
server.send(200, "text/html", SendHTML(Temperature,Humidity));
}
void handle_NotFound(){
server.send(404, "text/plain", "Not found");
}
String SendHTML(float Temperaturestat,float Humiditystat){
String ptr = "<!DOCTYPE html> <html>\n";
ptr +="<head><meta name=\"viewport\" content=\"width=device-width, initial-scale=1.0, user-scalable=no\">\n";
ptr +="<meta charset='utf-8'>\n";
ptr +="<meta http-equiv = 'refresh' content = '1'>\n";
ptr +="<title>ESP8266 Weather Report</title>\n";
ptr +="<style>html { font-family: Helvetica; display: inline-block; margin: 0px auto; text-align: center;}\n";
ptr +="body{margin-top: 50px;} h1 {color: #444444;margin: 50px auto 30px;}\n";
ptr +="p {font-size: 24px;color: #444444;margin-bottom: 10px;}\n";
ptr +="</style>\n";
ptr +="</head>\n";
ptr +="<body>\n";
ptr +="<div id=\"webpage\">\n";
ptr +="<h1>ESP8266 NodeMCU Weather Report</h1>\n";
ptr +="<p>Temperature: ";
ptr +=Temperaturestat;
ptr +="°C</p>";
ptr +="<p>Humidity: ";
ptr +=Humiditystat;
ptr +="%</p>";
ptr +="</div>\n";
ptr +="</body>\n";
ptr +="</html>\n";
return ptr;
}
void updateDHT22()
{
// 設定 ESP8266 作為 Client 端
WiFiClient client;
if( !client.connect( HOST, PORT ) )
{
Serial.println( "connection failed" );
return;
}
else
{
// 準備上傳到 ThingSpeak IoT Server 的資料
// 已經預先設定好 ThingSpeak IoT Channel 的欄位
// field1：溫度；field2：濕度
client.print(String("GET ") + resource + APIKEY + "&field1=" + dht.readTemperature() + "&field2=" + dht.readHumidity() +
" HTTP/1.1\r\n" +
"Host: " + HOST + "\r\n" +
"Connection: close\r\n\r\n");
int timeout = 5 * 10; // 5 seconds
while(!!!client.available() && (timeout-- > 0)){
delay(100);
}
if(!client.available()) {
Serial.println("No response, going back to sleep");
}
while(client.available()){
Serial.write(client.read());
}
Serial.println("\nclosing connection");
client.stop();
}
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