Temperature Logger With Arduino And Artik Cloud

Sending temperature from Arduino MKR1000 to Artik Cloud.

Things used in this project

Hardware components

Arduino MKR1000

Software apps and online services

Samsung ARTIK Cloud for IoT

Arduino IDE

Story

Hi,

In this project find temperature using LM35 ic and post data into artik cloud.

The LM35 series are precision integrated-circuit temperature devices with an output voltage linearly-proportional to the Centigrade temperature read more

Artik cloud:

Samsung ARTIK gives you tools to reduce your IoT product development timelines, getting your product to market faster. Our end-to-end ecosystem strategy means you don’t have to develop your own modules, network stack, or cloud on-boarding. for more.

You can find many tutorial about Artik in hackster.io.

Step 1:

First create a free Artik Cloud account .CLICK HERE

After that Open Developers portal

then Click on Device type from the Dashboard menu

click Create Device type and Create a new device .

After creating a device we need some information to connect with Artik cloud.

For that click on the small gear (Settings) icon on the near the device name and a pop-up will come. Click ongenerate device token and you will get a token. Copy the Device ID and the Device Token for later use. artik

Code:

Next we are doing code to Take temperature and post temperature details in ARTIK cloud.

Code to take temperature using LM35:

int val; 
int tempPin = 9; // temperature pin  
void setup() 
{ 
Serial.begin(9600); 
} 
void loop() 
{ 
val = analogRead(tempPin); //read analog data  
float mv = ( val/1024.0)*;  //FInd temperature  
float cel = mv/10;          //convert in to celsius  
float farh = (cel*9)/5 + 32; //convert in to fahrenheat (optional)  
Serial.print("TEMPRATURE = "); 
Serial.print(cel); 
Serial.print("*C"); 
Serial.println(); 
delay(1000); 
}

After that we post this data into ARTIK cloud in a fixed interval. For that following have a code please checkout that. After uploading Go to ARTIK cloud and check all is fine.

You can find your data by simply go to here. ARTIK cloud

temperature

measure

ARTIK cloud

At last check this working video:

Thank you for watching my tutorial!

Schematics

ARDUINO_PIN_CONNECTION

Code

#include <WiFi101.h>
#include <ArduinoJson.h>
int temp = 9; //temperature pin
int val;

// Web REST API params
char server[] = "api.artik.cloud";  
int port = 443; //(port 443 is default for HTTPS)

String AuthorizationData = "Authorization: Bearer  <YOUR DEVICE TOKEN>";


char buf[200];
int LED = 6;
int ledState = 0;

WiFiSSLClient client;
char ssid[] = "YOUR SSID";      //  your network SSID (name)
char pass[] = "YOUR PASSWORD";
int status = WL_IDLE_STATUS;

void setup() {

  pinMode(LED,OUTPUT);
  pinMode(temp, INPUT); // LM35 pin

  Serial.begin(9600);
  while (status != WL_CONNECTED){
    Serial.println("Attempting to connect to WiFi");
    status = WiFi.begin(ssid,pass);
  }
  Serial.println("connected to WiFi ");
  
}
  
void loop() {
  Serial.println("loop");
  ledToggle();
  client.connect(server, port);
  delay(1000);
  if (!client.connected()) { 
    Serial.println(" error ");
  } else {
      //int t = dht.readTemperature();
      //int h = dht.readHumidity();
      val = analogRead(temp);
float mv = ( val/1024.0)*5000; //FInd temperature
float cel = mv/100;            //convert in to celsius 
float farh = (cel*9)/5 + 32;   //convert in to fahrenheat (optional) 
      Serial.println("Sending data"+String(cel)); // sending data 
      client.println("POST /v1.1/messages HTTP/1.1");
      client.println("Host: api.artik.cloud");
      client.println("Accept: */*");
      client.println("Content-Type: application/json");
      client.println("Connection: close");
      client.println(AuthorizationData);

       // Automated POST data section
       client.print("Content-Length: ");
       client.println(loadBuffer(cel,farh)); // loads buf, returns length
       client.println();
       client.println(buf);
       Serial.println("Data posted");
       client.stop();       
  }
 
  delay(3*60*1000); // setting delay foe 3 minutes 

}