Hello readers, hope you all are doing great. In this tutorial, we are going to discuss a mechanism that allows users to update the ESP32 with a new program wirelessly or over the air (without using a USB cable to upload a new program).
Over-The-Air (OTA) programming
Fig. 1 ESP32 OTA
OTA programming is the mean by which a product manufacturer or product service provider can update the features or functionality of the device wirelessly or over the air, after the device has been deployed in the field where connecting a cable or uploading the code serially is difficult.
One key advantage of OTA is that a single central node can send an update to multiple ESPs on the same network.
The device must have a provisioning client capable of receivin ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to give you detailed discussion on Introduction to LM2904. LM 2904 consists of two builtin amplifiers. These amplifiers have high gain and they are internally frequency compensated. These amplifiers are designed for the operation from a single power supply for a large range of voltages. We can also operate them from multiply power supplies as well.
LM-2904 operates on 3.3V power supply, it is the most common power supply in digital systems. LM 2904 is also available in small sizes i.e. they are available in the latest technology DSBGA. LM-2904 has a lot unique features in comparison to the other standard amplifiers. These features include large DC voltage ga ...
So you've installed a beautiful new solar energy system around your house or property. You're saving tons on your electric bill and never have to worry about blackouts, power surges, or planned outages—you control your power source now. Here's the problem: What do you do when you need to dispose of everything?
Eventually, you will need to replace the solar panels and the solar battery, which powers the whole system. Disposing of solar batteries isn't exactly simple, and it needs to be handled with the utmost care. But it is easy to navigate if you know the proper steps to take—and what to avoid. Here's our complete guide.
Disposing of the Battery
If you've recently purchased a solar energy system or portable solar generator, you know the current ...
Hello Everyone! I welcome you on board. Hope you’re well today. In this post today, I’ll detail the Introduction to FR106.The Fr106 is a fast recovery diode mainly employed in fast-switching applications. It supports loads under 1A and carries a peak inverse voltage of 800 V.
I suggest you read this post all the way through as I’ll walk you through the complete Introduction to FR106 covering datasheet, pinout, features, characteristics, and applications. Let’s jump right in.
Introduction to FR106
Fr106 is commonly known as a fast recovery diode mainly employed in fast-switching applications. This is a two-terminal device named anode and cathode.
The gray-colored band at one side of the diode indicates the cathode side while the other side is the anode terminal.
...
Update: We have created a new version of this library, which you can check here: Arduino Mega 2560 Library for Proteus V2.0.
Hello friends, hope you all are fine. In today's post, I am going to share Arduino Mega 2560 Library for Proteus. In the previous post, I have shared the Arduino UNO Library for Proteus and I have mentioned that I am gonna share more Arduino Libraries soon. Actually these days I am quite excited about this Proteus component designing and I am designing the Arduino boards as a starter. So, till now I have designed two Arduino boards in Proteus. First one was Arduino UNO which I have provided for download in previous post and today, I am going to share Arduino Mega 2560 Library for Proteus.
In the coming posts, I am gonna sh ...
Hey Guys! I aspire you a very happy and promising life. My job is to give you daily dose of information so you can stand out of the party. Today, I am going to uncover the details on the Introduction to 2sc4793. It is an NPN (Negative-positive-negative) bipolar junction transistor (BJT) which is mainly used for amplification and switching purpose. I'll give you a brief details about this transistor and try to cover as many aspects as possible related to this transistor. Let's hop on the board and explore what kind of transistor is this and what are its main applications? Let's get started.
Introduction to 2sc4793
2sc4793 is an NPN bipolar junction transistor where P-doped layer is sandwiched between the two N-doped layer.
It is mainly three t ...
Hello friends, I hope you all are doing great. In today's tutorial, we are gonna have a look at detailed Introduction to A4988. The A4988 is a micro-striding driver for governing the stepper motors, it is incorporated with the interpreter (translator) for the tranquil process. By this controller stepper motor can control by 2 pinouts, one pin is to regulate the direction of motor revolutions and other is for steps regulation of motor.
It works on 3 to 5.5V and it consumes per phase two amperes current in presence of the proper cooling environment. It consists of an immovable off-time current controller which has the capacity to works in sluggish or assorted falling-off styles. In today's post, we will have a look at its cascading, pinout, sorts, uses, etc. I will also share some li ...
Hi Guys! Hope you’re well today. I welcome you on board. In this post, I’ll walk you through How to Install PCBWay Plugin for FreeCAD PCB Software.
Before we move further and help you with the installation of the plugin, let’s get a brief introduction to the FreeCAD software.
FreeCAD is a free and open-source parametric 3D modeler used to design real-life objects. With parametric modeling, you can easily modify your design and change its parameters. The tool is mainly used in mechanical engineering for product design and also proves to be handy in electrical engineering for electronic board designs. It supports Windows, Linux and macOS operating systems. Python programming language is primarily used to extend the overall functioning of the software.
Hope you’ve got an ...
Hello readers, I hope you all are doing great.
ESP32 is a powerful chip for Internet of Things applications. This tutorial is also based on one of the ESP32 applications in the field of IoT.
Project Overview
In this tutorial, we will learn how to update LCD display with new data or input using a web server created with ESP32.
Fig. 1
To achieve the target, we will be using an HTML (Hypertext Markup Language) form to provide web input and then update the text displayed on LCD. The values or input received from the webserver will be further stored inside a variable in the code for further use (to display on LCD).
We have already posted a tutorial on LCD (Liquid Crystal Display) interfacing with ESP32. In that tutorial, we demonstrated how to displa ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I will provide you document on detailed discussion about Introduction to LM224. LM-224 has four internal builtin operational amplifiers. These amplifiers are frequency compensated. The basic purpose to design these type of device is to operate it from a single power supply sources. Moreover, they are also able to perform different tasks using split power supplies. Magnitude of power supply and the current current drain both are independent of each other.
LM-224 has a very wide range of application areas which include DC gain blocks, transducer amplifiers etc. LM 224 has a large number of amazing features include wide power supply ranges, large bandwidth, low input offs ...
