IoT – the Internet of Things – has revolutionized the way we use and perceive technology over the last couple of decades. From introducing the world to smart homes and cars to envisioning a more efficient office and work environment, IoT has done it all.
We have integrated IoT in our industrial, tech, and agricultural sectors, as well as our personal lives. However, one of the most fascinating ways IoT has influenced our current society is through its contribution to the health and medical sector.
The healthcare sector managed to get the most out of the Internet of Things technology. Utilizing modern sensors to keep a close eye on their patients’ conditions, these IoT systems are making life easier for medical professionals. And while IoT systems ...
Hello readers, hope you all are doing great. In this tutorial, we will discuss low power modes in ESP32, their purpose and their implementation to increase the battery life by reducing power consumption.
Purpose of Low Power Modes
Fig.1
Along with multiple wireless and processing features, ESP32 also provides us with a power-saving feature by offering sleep modes. When you are powering the ESP32 module from the live supply using an adaptor or a USB cable, there is nothing to worry about power consumption. But when you are using a battery, as a power source to ESP32, you need to manage the power consumption for longer battery life.
Low Power Modes in ESP32
When ESP32 is in sleep mode, a small amount of power is required to maintain the state of ...
Hello readers, I hope you all are doing great. Welcome to the 3rd Lecture of Section 2 in the ESP32 Programming Series. In this tutorial, we are going to discuss another important feature of ESP32 i.e. PWM(Pulse Width Modulation).
Pulse Width Modulation is a technique to reduce the voltage by pulsating it. In today's lecture, we will first understand the basic concept of PWM, and after that will design two projects to fully grasp it. In the first project, we will control the brightness of an LED, while in the second one, we will control the speed of a DC Motor.
Here's the video demonstration of PWM Control in ESP32:
Before going forward, let's first have a look at the PWM working:
What is Pulse Width Modulation?
PWM is used to control the power delivered to the load by pul ...
The nearshoring phenomenon is a global economic trend that has been going on for decades. The phenomenon is defined as moving a company’s operations to a country that is in close proximity to the company’s home base.
Nearshoring offers many benefits in terms of cost savings, but it also has many drawbacks. It can have a negative effect on wages for local workers, and it can also have an impact on the environment if the process involves bringing in outsourced goods from overseas.
To conclude, nearshoring often benefits both companies and consumers who are looking for affordable goods at low prices. However, it can have a negative effect on wages and local jobs in the long run.
It's a great way for companies with smaller budgets to have more resour ...
Hello friends, I hope you all are doing great. In today's tutorial, we will have a look at the 5 Ways to Prevent Your Car from Being Stolen. Every year over 720,000 motor vehicles are stolen, according to the official site of the United States government. Thieves have gotten savvy, using technology and new methods to make stealing cars easier than ever. It is crucial to take steps to protect your vehicle from being stolen. Here are five ways to do just that:
Install a Security System
A good security system includes an alarm, immobilizer, and battery backup if you lose power to your car for any reason. It should have a remote lock/unlock capability which can be helpful if someone finds or steals your keys ...
Hello! Readers, I hope you are pretty good. I am here with a new article to enhance your knowledge about advanced technologies. Today, we will have a detailed overview of the Manufacturing Process of Multilayer PCB. First, we will have a look at its basic definition, why there Is a need for this new type of PCB in presence of single layer and double layer PCBs. What are the merits and demerits of multilayer PCBs and pedagogy behind the construction process of these PCBs? Let’s start to take in all information about these PCBs. I try my best to deliver all of my research capacity for doing this job.
Introduction to Multi-layer PCBs
As to the name, it's clear that multi-layer PCBs are those which have several conductive layers over substantial material which is knowns as substrate. Unlike ...
Hello readers, hope you all are doing great. In this tutorial, we will discuss another ESP32 protocol that is Web Socket and we will also explain how to create a web server using web socket protocol with ESP32. So, we will have a look at What is a web socket server, How web socket protocol is different from HTTP protocol, What is handshaking in networking, Three-way handshaking, Web socket application, Creating web socket server using ESP32 module etc. Let's get started:
What is a web socket protocol?
Fig 1 Web-socket server
A Web Socket is a full-duplex (both the server and the client can send and receive data at the same time) computer communication protocol. Web socket protocol, like HTTP (hypertext transfer protocol), also works in server an ...
Hello readers, hope you all are doing great. Today, we will discuss interrupts and timers in ESP32 and how to handle internal as well as external interrupts. So, we will discuss What is interrupt, Polling, ESP32 interrupt, Software interrupts, Hardware Interrupts, IRS (Interrupt Service routine), Steps to execute an interrupt or how is an interrupt handled in the microcontroller, Code description for ESP32 interrupts with Arduino IDE, Code description for hardware interrupts, Why is it preferred to use timer to add delay instead of using delay() function. So, let's get started:
What is Interrupt?
Interrupts are used when a micro-controller needs to continuously monitor for an event while the same micro-controller is executing a particular task ...
Hello readers, hope you all are doing great. This is our 3rd tutorial in the ESP32 programming series. In our previous tutorial, we discussed the ESP32 Web server, where we created the ESP32 web server in STA mode.
ESP32 can be operated as an access point (AP) or a Wi-Fi station (STA mode). So, in this tutorial, we will create an ESP32 web server in access point (AP) mode. Here's the video demonstration of ESP32 WebServer in Access Point Mode:
As I mentioned above, in our 2nd tutorial, we already discussed the basics of the ESP32 web server. So, in this tutorial, we will only discuss how to create the ESP32 in access point mode.
For detailed information about the basics of the ESP32 web server and how client-server communication takes place, fol ...
Hello readers, I hope you all are doing well. Welcome to the Section 2 (ESP32 Features) of the ESP32 Programming Series. ESP32 is equipped with numerous built-in features and in each chapter of this Section 2, we will explore one of these ESP32 features in detail.
In the previous Section(Section 1: ESP32 IDEs), we installed different software IDEs to program ESP32 boards. Among these IDEs, we are going to use Arduino IDE for programming ESP32. So, I hope all of your tools are configured properly and you are ready to explore the built-in features of ESP32.Today's the 1st Chapter of Section 2, and here we will discuss How to communicate with ESP32 Bluetooth Classic from a smartphone using Arduino IDE.
Here's the video tutorial for ESP32 Bluetooth Classic:
ESP32 Wireless Features ...
