Hello friends, I hope you all are doing well. Welcome to the next tutorial of our Raspberry Pi 4 programming course. In the previous lecture, we interfaced LCD 16x2 with Raspberry Pi 4. Today, we will interface a keypad 4x4 to Raspberry Pi 4. In embedded projects, a keypad is used to get user input i.e. calculator, ATM keypad etc. Different types of Keypads are available i.e. 4x4, 4x3 etc.
So, let's get started:
Components Required
We will need the following components in our today's project:Raspberry Pi 4Keypad 4x4BreadboardConnecting Wires
Keypad 4x4
A keypad is a collection of push buttons, arranged in a matrix form.Keypad 4x3 means the keypad has 4 rows and 3 columns and 12 buttons in total. A 4 by 4 keypad membrane has 8 pins in t ...
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Hello friends, hope you all are fine and enjoying. Today i am going a new project tutorial which is 11-level 3-phase Capacitor Clamped Inverter. In my previous post 11 Level 3-phase Cascaded H-Bridge Inverter, we have designed the simulation of 3 phase 11 level inverter but the only difference was the method used in that project was cascaded H Bridge but today we are gonna see How to design an 11 level 3 phase inverter using clamped capacitors.
Now i am going to share a new and advanced bulk of knowledge about inverters with you people. Since we are going to design a 3-phase capacitor clamped inverter so, we need to design some algorithm which should be able to invert DC into AC at some High voltages and after inverting these DC ...
XBee modules have become a cornerstone for wireless communication in today's electronics and embedded systems projects. Whether you are building a home automation system, an industrial control network, or simple point-to-point communication between devices, XBee offers a reliable and easy-to-use solution. In this comprehensive introduction, we will explore what the XBee module is, how it works, its core features, and how you can integrate it into microcontroller-based projects.
In future tutorials, we’ll delve deeper into specific interfacing guides, including how to interface the XBee module with a computer and connecting XBee to an Arduino. While Arduino will be our primary focus due to its popularity and accessibility, you can also connect XBee modules to other microcontrollers such as ...
Hello friends, I hope you all are fine and having fun. In today's tutorial, I am going to show you How to use Arduino Software Serial. In my previous tutorial, we have had a look at How to use Arduino Serial Write and How to use Arduino Serial Read. In both of these tutorials, we have done the hardware Serial Communication. But we all know that Arduino has just one Serial Port placed at pins 0 and 1.
So, if you are having two or more serial modules, then there's difficulty in adding two modules because we just have one hardware serial port. So, in such cases, there's a need to add one more serial port and that serial port can be created at any two pins of Arduino and is called software serial. Software Serial is also named Virtual Serial Port.
It's ...
Hello, learners welcome to The Engineering Projects. We are working on MATLAB, and in this tutorial, you are going to learn a lot about matrices in MATLAB. We are going to learn them from scratch, but we will avoid unnecessary details about the topic. So, without wasting time, have a look at the topics that you will learn in detail.
What is an array?
What is the matrix?
How can we declare a matrix in MATLAB?
What are the different types of matrices?
Can we find the unknown values of two equal matrices?
How can we solve the simultaneous equation in MATLAB?
What is an Array?
In this world of technology, the use of data is everywhere, and therefore, we can say there is a need for arrays in every field. You will find the reason soon. But before this, look at the introduction of a ...
Hello everyone! I hope you all will be absolutely fine and having fun. Today, I am going to share my knowledge about How to Create m File in MATLAB. It is also known as New Script or Editor in the MATLAB. It's an amazing MATLAB tool. We can write the complete source code on editor. If we want to visualize the result of the particular statement we should not put a semicolon after that statement in MATLAB. Before going into the details of this tutorial, you must first have a look at Introduction to MATLAB and if you don't know about MATLAB variables then you must read Declaration of Variables in MATLAB.
By doing this and by pressing the Run (Green Color) button at the top of the editor we will be able to see the result on the command window. In ot ...
To become familiar with the world of microcontrollers it is necessary to have a development board (also known as a kit), which generally allows you to start working on it easily. Fortunately, the ST provides a wide portfolio of development boards. In this guide, we will describe and use the Nucleo board.
The Nucleo has been introduced a few years ago and its line is divided into three main groups:
Nucleo-32;
Nucleo-64;
Nucleo-144.
Nucleo-32 Development Board
The number of pins available, so the package, gives the name to the board: Nucleo-32 uses an LQFP-32 package; Nucleo-64 and LQFP-64; Nucleo-144 an LQFP-144. The Nucleo-64 was the first line introduced and counts 16 different boards.
The Nucleo boards have interesting advantages compa ...
A student's academic career is full of writing assignments on different topics. This is so because assignments help students to learn and grow. Writing assignments throughout their academic career will not only contribute to increasing their knowledge but also develop skills that will be beneficial in both their academic career and practical life.
However, students can only experience these benefits, if they start writing incredible assignments. Writing good assignments is not an easy task to do, it requires a proper approach to follow. Don’t worry, we have got you covered.
In this blog post, we are going to explain a step-by-step procedure that will help academic students in writing incredible assignments. So, without discussing any other information, let’s head toward ...
Hello friends, hope you all are fine and enjoying your lives. Today, I am going to show you How to use comments in C++. In the previous tutorials, we first have a look at Introduction to C++ in which we have discussed a simple c++ program. After that we have discussed How to use Escape Sequence in C++, which is also essential because escape sequence is a very simple concept but is used quite a lot on C++ projects os you must have its knowledge.
Today, we are gonna discuss Comments in C++ i.e. how to use Comments in C++ and why to use Comments in C++. Just like escape sequence, comments in C++ is also very basic concept but its really important and a programmer must know How to use Comments because without it the code becomes really difficult and i ...
Hello friends, today's post is, as the name suggests, about the Voice Recognition using EasyVR Shield. Voice recognition is quite a difficult task and usually done on software like MATLAB, but what if someone needs a stand alone project, a kind of autonomous voice recognition project, which doesn't use computer.
EasyVR is the solution for such projects. I recently did one project on this module named as Voice Recognition using EasyVR Shield and it worked really cool so I thought to share this new technology with you guys. I couldn't write the next part of Proteus tutorial, actually firstly I was busy in this project and then I thought to share this one as its quite exciting one. After completing this project, I will come back to Proteus tutorial.
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