Difference between revisions of "WeMOS: DHT11 - sensor suhu dan humidity"

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(Source code)
 
Line 6: Line 6:
  
  
==Source code==
+
==Code==
  
 
  #include <DHT.h>
 
  #include <DHT.h>
 
  #include <ESP8266WiFi.h>
 
  #include <ESP8266WiFi.h>
 
    
 
    
  // replace with your channel’s thingspeak API key and your SSID and password
+
  // replace with your channel’s thingspeak API key and your SSID and password
  String apiKey = "thingspeak api key";
+
  String apiKey = "0C2X0PGNFHOEGYZA";
  const char* ssid = "ssid name";
+
  const char* ssid = "Wisma Anggrek";
  const char* password = "ssid password";
+
  const char* password = "@nggr3kbul@n";
 
  const char* server = "api.thingspeak.com";
 
  const char* server = "api.thingspeak.com";
 
    
 
    
  #define DHTPIN D2
+
  #define DHTPIN D7
 
  #define DHTTYPE DHT11  
 
  #define DHTTYPE DHT11  
 
    
 
    
Line 25: Line 25:
 
  void setup()  
 
  void setup()  
 
  {
 
  {
Serial.begin(115200);
+
  Serial.begin(115200);
delay(10);
+
  delay(10);
dht.begin();
+
  dht.begin();
 
+
 
WiFi.begin(ssid, password);
+
  WiFi.begin(ssid, password);
 
+
 
Serial.println();
+
  Serial.println();
Serial.println();
+
  Serial.println();
Serial.print("Connecting to ");
+
  Serial.print("Connecting to ");
Serial.println(ssid);
+
  Serial.println(ssid);
 
+
  WiFi.begin(ssid, password);
WiFi.begin(ssid, password);
+
 
 
+
  while (WiFi.status() != WL_CONNECTED)  
while (WiFi.status() != WL_CONNECTED)  
+
  {
{
+
    delay(500);
delay(500);
+
    Serial.print(".");
Serial.print(".");
+
  }
}
+
  Serial.println("");
Serial.println("");
+
  Serial.println("WiFi connected");
Serial.println("WiFi connected");
+
 
  }
 
  }
 
    
 
    
 
  void loop()  
 
  void loop()  
 
  {
 
  {
 +
  float h = dht.readHumidity();
 +
  float t = dht.readTemperature();
 +
  if (isnan(h) || isnan(t))
 +
  {
 +
    Serial.println("Failed to read from DHT sensor!");
 +
    return;
 +
  }
 
    
 
    
float h = dht.readHumidity();
+
  if (client.connect(server,80)) {
float t = dht.readTemperature();
+
    String postStr = apiKey;
  if (isnan(h) || isnan(t))  
+
    postStr +="&field1=";
{
+
    postStr += String(t);
  Serial.println("Failed to read from DHT sensor!");
+
    postStr +="&field2=";
  return;
+
    postStr += String(h);
 +
    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.print("Temperature: ");
 +
  Serial.print(t);
 +
  Serial.print(" degrees Celsius Humidity: ");
 +
  Serial.print(h);
 +
  Serial.println("\nSending data to Thingspeak");
 +
  }
 +
  client.stop();
 +
   
 +
  Serial.println("Waiting 20 secs");
 +
  // thingspeak needs at least a 15 sec delay between updates
 +
  // 20 seconds to be safe
 +
  delay(20000);
 
  }
 
  }
 
 
if (client.connect(server,80)) {
 
String postStr = apiKey;
 
postStr +="&field1=";
 
postStr += String(t);
 
postStr +="&field2=";
 
postStr += String(h);
 
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.print("Temperature: ");
 
Serial.print(t);
 
Serial.print(" degrees Celsius Humidity: ");
 
Serial.print(h);
 
Serial.println("Sending data to Thingspeak");
 
}
 
client.stop();
 
 
 
Serial.println("Waiting 20 secs");
 
// thingspeak needs at least a 15 sec delay between updates
 
// 20 seconds to be safe
 
delay(20000);
 
}
 
 
 
 
  
 
==Referensi==
 
==Referensi==

Latest revision as of 08:07, 9 November 2019

Sumber: http://www.esp8266learning.com/dht11-sensor-data-to-thingspeak-using-a-wemos-d1.php

Dht11 application.jpg



Code

#include <DHT.h>
#include <ESP8266WiFi.h>
 
// replace with your channel’s thingspeak API key and  your SSID and password
String apiKey = "0C2X0PGNFHOEGYZA";
const char* ssid = "Wisma Anggrek";
const char* password = "@nggr3kbul@n";
const char* server = "api.thingspeak.com";
 
#define DHTPIN D7
#define DHTTYPE DHT11 
 
DHT dht(DHTPIN, DHTTYPE);
WiFiClient client;
 
void setup() 
{
  Serial.begin(115200);
  delay(10);
  dht.begin();
  
  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() 
{
  float h = dht.readHumidity();
  float t = dht.readTemperature();
  if (isnan(h) || isnan(t)) 
  { 
    Serial.println("Failed to read from DHT sensor!");
    return;
  }
 
  if (client.connect(server,80)) {
    String postStr = apiKey;
    postStr +="&field1=";
    postStr += String(t);
    postStr +="&field2=";
    postStr += String(h);
    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.print("Temperature: ");
  Serial.print(t);
  Serial.print(" degrees Celsius Humidity: ");
  Serial.print(h);
  Serial.println("\nSending data to Thingspeak");
  }
  client.stop();

  Serial.println("Waiting 20 secs");
  // thingspeak needs at least a 15 sec delay between updates
  // 20 seconds to be safe
  delay(20000);
}

Referensi


Pranala Menarik