Category: iot

How to Interface RFM69HCW RF Module with Arduino for Wireless Communication
The RFM69HCW is a cheap easy to use radio module that operates in the unlicensed ISM (Industry, Science and Medicine) band similar to the nRF24L01 RF Module that we have used in previous projects. It can be used to communicate between two modules or can be configured as a Mesh Network to communicate among hundreds of modules that makes it a perfect choice for building inexpensive short-range wireless networks for sensors used in home automation and other data acquisition projects.

View the full article: https://circuitdigest.com/microcontroller-projects/how-to-interface-rfm69hcw-rf-module-with-arduino

What is Industry 4.0? Nine Pillars of Industry 4.0

Industry 4.0 is the fancy name given to the fourth Industrial revolution. In this article, we will discuss about what is Industry 4.0 and how is it going to enhance the future of Industries? Why such a buzz about it? Why failing to adopt it may kill your business? Let us take a look. It is sometime spelled as Industrie 4.0, this is the German translation of Industry so both can be used interchangeably.

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ESP8266 based Smart Plug to Make Your Home Appliances IoT Enabled

Ever since I started to work with the ESP Wi-Fi Modules, I always wanted to build a smart Wi-Fi socket that enables me to control my AC loads wirelessly through smart phone. While products like these are already available in the market, like the popular Moko WiFi Smart Plug or Sonoff, they are a bit expensive and on top of that it doesn’t give you the joy of building your own.  So, in this project I will show you how you can build your very own Smart plug using ESP8266 Wi-Fi module. The device that we built can easily be plugged into any exiting AC socket and then on the other end you can connect the actual load simply by plugging it into this socket on our device. After that just keep the main switch of your socket always on, and you can control your Load directly from your Smartphone. Fun right? Check out the project at below link ….

https://circuitdigest.com/microcontroller-projects/diy-smart-plug-using-esp8266

What is Blockchain and how can it be used to keep your data secure
Today Human civilization is highly dependent on computers and other machines. Everything around us from a simple alarm clock, to a complicated online banking system, works based on the program written for it. But how dependable are these programs, it is okay to wake up late when your alarm clock fails you, but think about losing your life’s savings just because your banking system was compromised. In fact, an article from Forbes states that in 2017 banks have lost about $16.8 billion to cybercriminals. This puts a big frown on our face, if these programs are subjected to loopholes, How can we trust them to drive our future autonomous cars? How can we trust them to automatically administer drugs and help take critical decisions in biomedical field?

Check out the full article here

Log Temperature Sensor Data to Google Sheet using NodeMCU ESP8266

There are many IoT clouds available to store and monitor the data from various sensors. With increasing popularity of IoT, more number of sensors are used every day and these sensors produce anonymous data which are useful to control other devices on the IoT network. These data can be studied further and used to modify design or improve the system performance. The Applications of Data Logging is vast and can be applied in Research Centres, Scientific Labs, Operation Theatres, Patient Monitoring System and many more.

Check out this useful DIY IoT tutorial: https://circuitdigest.com/microcontroller-projects/log-temperature-sensor-data-to-google-sheet-using-nodemcu-esp8266

Lora Based GPS Tracker using Arduino and LoRa Shield
In this tutorial we will build GPS tracking system using LoRa, the system will consist of a Transmitter which will read the location information from the NEO-6M GPS module and transmit it wireless over Lora. The receiver part will receive the information and display it on a 16×2 LCD display.

Check out the tutorial here: https://circuitdigest.com/microcontroller-projects/lora-based-gps-tracker-using-arduino-and-lora-shield

Top Open Source IoT Platforms to Cut Down Your IoT Development Cost
Just like with software, there are several IoT APIs available for different tasks, but most of them usually do not come free. For today’s tutorial, we will be looking at the top 10, very useful (in our opinion) Open Source IoT APIs to help you cut down on your development cost and time. These APIs are Open, free (or have free packages) and can be used by not just professionals but also makers, hobbyist and pretty much anyone who finds them useful and is okay with the terms of use. These APIs are listed in no particular order, were selected randomly across verticals, and are probably not comparable as they perform different tasks.

Article link: https://circuitdigest.com/article/top-10-open-source-iot-platforms-to-cut-down-your-iot-development-cost

Sending Sensor Data to Android Phone using Arduino and NRF24L01 over Bluetooth (BLE)

Here in this tutorial we will demonstrate how to send any data over BLE using nRF24L01. We will send temperature readings from DHT11 to smartphone using Arduino and nRF module over BLE.

Link to the tutorial: https://circuitdigest.com/microcontroller-projects/sending-sensor-data-to-android-phone-using-arduino-nrf24l01-over-bluetooth-ble

IoT Based Biometric Attendance system using Arduino and Thingsboard

In this project our aim is to leverage this IoT into the boring attendance system to make it smart and more effective. Most conventional attendance systems available today store the information over a micro SD card and have to be connected to software via a computer to access the information. Here, we will build a biometric attendance system using Arduino that scans for finger print and on successful identification of the person it will log the information to a cloud platform like ThingsBoard by using the ESP8266 Wi-Fi module. This information can then be displayed in the dashboard of ThingsBoard making it available for the required authorities to view and analysis information over the internet without having any direct physical access to the hardware. However the conventional Attendance system without involving IoT can also be built by following the link and Finger print sensor can be further used for many other biometric applications like Voting Machine, Security system etc.

Check out the full project details and instructions here: https://circuitdigest.com/microcontroller-projects/iot-based-biometric-attendance-system-using-arduino-and-thingsboard

Programming NodeMCU ESP8266 Over-the-Air (OTA) using Arduino IDE

OTA Programming (Over the Air) is a process which allows devices to upgrade their firmware or software wirelessly without any physical access. It uses wireless technology like Wi-Fi, Bluetooth, GPRS or 4G/3G rather than wired serial communication. OTA is used to reprogram the devices like microcontrollers, cellphones, computers, set-top box etc. OTA updates are generally sent for updating the software, resolving the bugs, adding some features etc. With the increasing use of IoT devices OTA is transferred using frequency bands having low data transmission rate (868 MHz, 900 MHz, 2400 MHz).

Learn more: https://circuitdigest.com/microcontroller-projects/esp8266-ota-update-programming-using-arduino-ide