Hello readers, I hope you all are doing great. In this tutorial, we will learn how to update a webpage using Server-Sent Events and the ESP32 web server.
What is Server-Sent Events (SSE)?
It is a server push technology that enables the client devices to receive automatic updates from a server over HTTP (Hypertext Transfer Protocol) connection. SSE also describes how the server can initiate data transmission towards the client once an initial connection with the client has been established.
We have already posted a tutorial on how to implement Web socket protocol with ESP32 which is also a protocol used to notify events to a web client. Both the Server-Sent Events (SSE) and Web-Socket technologies seem to be quite similar but they are not.
The major difference between the two is that SSE ...
Hi friends and hope you are all very well. Today, we are going to deal with one of the most important and common problems that would be there in everyday tasks in industry and its solution. The problem is the safety of equipment and operators by preventing the machine from running under specific conditions for realizing the safety of equipment and human as well. Not only does it fulfill safety but also it is for performing the designed sequence of operation. If there is a problem, then it should be the solution for it. the solution is what so-called “Interlock”. So, what is interlock? And why do we need it? And how we can design a good interlock? Well! We may find such concerns exist in two aspects which are safety and operation sequence. In the f ...
Hi Everyone! Glad to have you on board. Thank you for clicking this read. In this post today, I’ll cover the Role of Cloud Computing in IoT.
Digital transformation has gained momentum in the past few years, the reason traditional technologies are becoming obsolete over time. Now organizations are incorporating modern technologies into their business model at an accelerated pace. These technologies produce the influx of data and at times it becomes very difficult to process and handle that data, thanks to cloud computing that has made the handling of data easy and effective. You don’t need traditional data centers anymore to store and process information. Everything will be taken care of remotely in the cloud with data centers.
Not to mention, this is the era of automation. Companies striv ...
Hello readers, I hope you all are doing great. In our previous tutorial, we discussed the installation procedure of Visual Studio Code for programming Raspberry Pi Pico.
We have already mentioned in our previous tutorials that RP2040 or Raspberry Pi Pico supports multiple programming languages like C/C++, Circuit python, MicroPython cross-platform development environments. Raspberry Pi Pico module consists of a built-in UF2 bootloader enabling programs to be loaded by drag and drop and floating-point routines are baked into the chip to achieve ultra-fast performance.
There are multiple development environments to program a Raspberry Pi Pico board like Visual Studio Code, Thonny Python IDE, Arduino IDE etc.
So, in this tutorial, we will learn how t ...
Hello friends, I hope you all are doing great. Today, I am going to share the 6th tutorial of Section-III in the Raspberry Pi Programming Course. In our previous tutorial, we have seen how to interface an Ultrasonic Sensor with Raspberry Pi 4 and used Python to perform its calculations. In today's tutorial, we'll discuss how to interface a DHT11 temperature and humidity sensor to a Raspberry Pi. So, let's get started:
ComponentsHere's the list of components, we are going to use in today's circuit:
LCD display
DHT11 sensor
Raspberry pi
Breadboard
Male-to-female jumper wires
What is a DHT11 sensor?
DHT11 is a low-cost digital sensor, used to measure temperature and humidity in the surr ...
Hello readers, I hope you all are doing great. This is the second tutorial of the Raspberry Pi programming series. In our previous tutorial, we discussed the basic features and hardware architecture of Raspberry Pi Pico.
In this tutorial, we will discuss the various available development environments for programming the Raspberry Pi Pico. Later, in this tutorial, we will also discuss the installation of Visual Studio Code for Pi Pico programming.
Fig. Raspberry Pi Pico
RP2040 supports multiple programming languages like C/C++, Circuit python, and MicroPython cross-platform development environments. Raspberry Pi Pico module consists of a built-in UF2 bootloader enabling programs to be loaded by drag and drop and floating point routines are bake ...
Welcome to the next tutorial of our Raspberry Pi programming course. Our previous tutorial taught us to how to tweet from Raspberry pi. We also discussed some methods used by the tweepy library to perform some API calls in our project. We will learn how to print from a Raspberry pi in this lesson.
Let us get started
There are several benefits of having a print server. Print servers may link numerous computers to one or multiple printers, either physically or wirelessly, allowing you to access the printer with various devices and send print instructions from all the other connected computers.
It is not easy to print from an Android smartphone to a cabled printer; however, a printer server makes it simple. A print server is useful in small workpl ...
Hi Guys! Glad to have you on board. Thank you for clicking this read. In this post today, I’ll walk you through the Types of Internet of Things (IoT).
IoT has been around for a while and has started making the headlines over the past couple of years. Some people experience IoT in their everyday life but are not aware of what it actually is. When physical objects “things” interact with the digital world, IoT is born. In simple words, it’s the network of connected devices integrated with sensors that work to exchange and share data over the internet. It is a rapidly growing technology with more than 18 billion connected IoT devices today and with the inception and boost of 5G technology this figure is expected to touch 125 billion by 2030. Experts say we may witness the stage when everythin ...
ESP32 module comes with multiple inbuilt features and peripheral interfacing capability is one of those features. ESP32 module also consists of an inbuilt temperature sensor, but that can only measure the temperature of the ESP32 core not the temperature of the surrounding environment. So it is required to use a peripheral sensor to measure the temperature of the surrounding environment like home, garden, office etc.
Hello readers. I hope you all are doing great. In this tutorial, we will learn how to interface DHT11 (temperature and humidity sensor) with the ESP32. Later in this tutorial, we will discuss how to share the sensor readings obtained from the DHT11 sensor to a web server.
Before moving towards the interfacing and programming part, let’s have a short introduction to the DHT11 ...
Hi Guys! Hope you’re well today. I welcome you on board. In this post, I’ll walk you through Introduction to Workflow Automation.
Workflow automation is a critical part to run a successful business. It is used to improve the efficiency and productivity of the business to provide a better user experience, reduce errors and increase revenue. Workflow automation is the process of automating a set of repeatable tasks to achieve a certain goal within the software or app you use.
Confused?
Don’t be.
We’ll touch on this further in the article.
Curious to know more about workflow automation, its benefits, how to choose workflow automation software, and how it can help your business?
Keep reading.
Introduction to Workflow Automation
Before we get into th ...
