How to use Retrofit in Android Studio?

This is a simple tutorial on how to implement Retrofit, the REST api in your android application. If you are intending to save the REST data for offline usage, then How to use GreenDao in android studio? is a good read. Make sure you download the complete project. STEPS PART 1: Setting up Retrofit REST…


Ionic IOT ( MQTT ) Client using Eclipse Paho – Part 4

This app will help you monitor sensor datas uploaded to cloud via MQTT and visualize it in  the form of Spline. Use-case scenario: The app’s primary objective is to monitor elder peoples health condition from remote periodicaly. In-fact, we wanted to integrate more sensors in the device, like Temperature, GPS etc. This could also be…

Sensors for ESP8266-01 : Part 5

This is a follow up of the tutorial series, on IOT-with-ESP-01. If you can’t follow this article, make sure to read the complete series. NOTE: 1. First of all, you should know that, ESP-01 has only 2 GPIO pins and no ADC pins. So we can only use digital output sensors. 2. LM35 (Temperature Sensor),…

ESP8266 programming for Cloud MQTT using Pubsubclient- Part 3

In this tutorial, I will walk you through the process of installing Pubsubclient library for ESP8266, and help you understand a simple program for sending data to cloud MQTT. Please read my tutorial series on IOT….

Programming ESP8266 (ESP-01) using ESP8266 Programmer CH340G Chip Adapter-PART 2

Before we get started, I would like to walk you through my discovery about this programmer. I spend 2 days to get into the following conclusion. Please read my tutorial series on IOT….