Temperature Logger With Arduino And Artik Cloud

Sending temperature from Arduino MKR1000 to Artik Cloud.

Things used in this project

Hardware components

Arduino MKR1000
Arduino MKR1000
× 1

Software apps and online services

ARTIK Cloud for IoT
Samsung ARTIK Cloud for IoT
Arduino IDE
Arduino IDE


At last check this working video:



Used to detect temperature in LM35 and send in to ARTIKcloud ,
#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(temp, INPUT); // LM35 pin

  while (status != WL_CONNECTED){
    Serial.println("Attempting to connect to WiFi");
    status = WiFi.begin(ssid,pass);
  Serial.println("connected to WiFi ");
void loop() {
  client.connect(server, port);
  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");

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


int loadBuffer(int insTemp, int insHumid ) {  
   StaticJsonBuffer<200> jsonBuffer; // reserve spot in memory

   JsonObject& root = jsonBuffer.createObject(); // create root objects
     root["sdid"] = "<YOUR DEVICE ID>"; // FIX 
     root["type"] = "message";

   JsonObject& dataPair = root.createNestedObject("data"); // create nested objects
     dataPair["temp"] = insTemp;  
     dataPair["humid"] = insHumid;

   root.printTo(buf, sizeof(buf)); // JSON-print to buffer

   return (root.measureLength()); // also return length

 void ledToggle(){
  if (ledState == 0){
    ledState = 1;
  } else {
    ledState = 0;

Source : Temperature Logger With Arduino And Artik Cloud

About The Author

Ibrar Ayyub

I am an experienced technical writer holding a Master's degree in computer science from BZU Multan, Pakistan University. With a background spanning various industries, particularly in home automation and engineering, I have honed my skills in crafting clear and concise content. Proficient in leveraging infographics and diagrams, I strive to simplify complex concepts for readers. My strength lies in thorough research and presenting information in a structured and logical format.

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