Published August 2, 2018 © GPL3+

ESP8266 NodeMCU & Antares IoT Platform

A simple IoT experiment, connecting a NodeMCU board to monitor a potentiometer and DHT11 via Antares IoT Platform.

BeginnerFull instructions provided1 hour2,131

Things used in this project

Hardware components

NodeMCU ESP8266 Breakout Board

Breadboard (generic)

Rotary potentiometer (generic)

DHT11 Temperature & Humidity Sensor (4 pins)

Jumper wires (generic)

Software apps and online services

Arduino IDE

Story

Antares offers an IoT platform specifically designed for any Internet of Things (IoT) projects. The platform is developed by Telkom Indonesia to support the integration of data from sensors and actuators on the Internet.

This article will present a step by step example how to upload analog value of a potentiometer and DHT11 (temperature & humidity sensor) from ESP8266 NodeMCU to Antares IoT platform. Watch video below for its demonstration, then follow these instructions to start building your project with ESP8266 NodeMCU and Antares.

NodeMCU & Antares IoT Platform

1. What You Need 🎁

To build this project, you will need the following items:

1 ESP8266 NodeMCU board

1 breadboard

1 potentiometer

1 DHT11 sensor

some jumper wires

Arduino IDE (download here)

Antares ESP8266 library (download here)

2. Schematics 🔧🔨

Gather your parts then follow the schematics below.

Schematics

3. Antares Setup ❤️

Create Antares Application & DeviceSignup/login to Antares then go to Applications menu, and click +Add Application button to create a project. Fill out the forms then click +Add Device button to create your virtual device on Antares.Please remember your application & device name, we'll use it later!

Create Application & Device

Get Antares Access KeyNow go to your Antares Account, grab your access key, and you're Done!

Access Key

4. Arduino Sketch 📋

First you need to install ESP8266 platform on Arduino IDE, follow these instructions: click here.

Install manually Antares library for ESP8266 (download here). Download, extract & copy its files to C:\...\Documents\Arduino\libraries. In my case, I have to deactivate WiFiClient library from Antares library. Simply open AntaresESPHTTP.h file, then delete/comment this line:

#include <WiFiClient.h>

Open your Arduino IDE, then copy sketch below to your Arduino IDE. Make sure you have chosen the right option for Board and Port under Tools menu, then upload to your NodeMCU board.

5. Have Fun! 😎

Now you can monitor your potentiometer & DHT11 sensor value every 10 seconds on Antares dashboard. You can also create some widgets under Widgets menu to visualize the data. For more information about Antares, read its full documentation: click here.

Lintang Wisesa 💌 lintangwisesa@ymail.com

Code

NodeMCU & Antares

#include "AntaresESPHTTP.h"
#include "DHT.h"
#define DHTPIN D5
#define DHTTYPE DHT11
DHT dht(DHTPIN,DHTTYPE);

#define SERVER "http://platform.antares.id"
#define PORT "8080"
#define ACCESSKEY "your_antares_access_key"
#define WIFISSID "your_wifi_name"
#define PASSWORD "your_wifi_password"

String projectName = "your_antares_application_name";
String deviceName = "your_antares_device_name";

Antares antares(ACCESSKEY,SERVER,PORT);

void setup() {
    Serial.begin(115200);
    pinMode(D5,INPUT); 
    antares.setDebug(true);
    antares.wifiConnection(WIFISSID,PASSWORD);
}

void loop() {
  String suhu = String(dht.readTemperature());
  String lembab = String(dht.readHumidity());
  String pot = String(analogRead(A0));
  
  int sizeData = 3;
  String dataName[sizeData],dataValue[sizeData];
  dataName[0]= "Suhu";
  dataName[1]= "Lembab";
  dataName[2]= "Pot";

  dataValue[0]= suhu;
  dataValue[1]= lembab;
  dataValue[2]= pot;

  Serial.println(antares.storeData(projectName, deviceName, dataName, dataValue, sizeData));
  delay(10000);
}