This book details the use of the ARM Cortex-M family of processors and the Arduino Uno in practical CAN bus based projects. Inside, it gives a detailed introduction to the architecture of the Cortex-M family whilst providing examples of popular hardware and software development kits. Using these kits helps to simplify the embedded design cycle considerably and makes it easier to develop, debug, and test a CAN bus based project. The architecture of the highly popular ARM Cortex-M processor STM32F407VGT6 is described at a high level by considering its various modules. In addition, the use of the mikroC Pro for ARM and Arduino Uno CAN bus library of functions are described in detail.
This book is written for students, for practising engineers, for hobbyists, and for everyone else who may need to learn more about the CAN bus and its applications. The book assumes that the reader has some knowledge of basic electronics. Knowledge of the C programming language will be useful in later chapters of the book, and familiarity with at least one microcontroller will be an advantage, especially if the reader intends to develop microcontroller based projects using CAN bus.
The book should be useful source of reference to anyone interested in finding an answer to one or more of the following questions:
What bus systems are available for the automotive industry?
What are the principles of the CAN bus?
What types of frames (or data packets) are available in a CAN bus system?
How can errors be detected in a CAN bus system and how reliable is a CAN bus system?
What types of CAN bus controllers are there?
What are the advantages of the ARM Cortex-M microcontrollers?
How can one create a CAN bus project using an ARM microcontroller?
How can one create a CAN bus project using an Arduino microcontroller?
How can one monitor data on the CAN bus?
All you need to know about good acoustics and sound systems in performance and worship spaces!
Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results.
A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform.
This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.
Ready to explore the world around you? By attaching the Sense HAT to your Raspberry Pi, you can quickly and easily develop a variety of creative applications, useful experiments, and exciting games.
The Sense HAT contains several helpful environmental sensors: temperature, humidity, pressure, accelerometer, magnetometer, and gyroscope. Additionally, an 8x8 LED matrix is provided with RGB LEDs, which can be used to display multi-color scrolling or fixed information, such as the sensor data. Use the small onboard joystick for games or applications that require user input. In Innovate with Sense HAT for Raspberry Pi, Dr. Dogan Ibrahim explains how to use the Sense HAT in Raspberry Pi Zero W-based projects. Using simple terms, he details how to incorporate the Sense HAT board in interesting visual and sensor-based projects. You can complete all the projects with other Raspberry Pi models without any modifications.
Exploring with Sense HAT for Raspberry Pi includes projects featuring external hardware components in addition to the Sense HAT board. You will learn to connect the Sense HAT board to the Raspberry Pi using jumper wires so that some of the GPIO ports are free to be interfaced to external components, such as to buzzers, relays, LEDs, LCDs, motors, and other sensors.
The book includes full program listings and detailed project descriptions. Complete circuit diagrams of the projects using external components are given where necessary. All the projects were developed using the latest version of the Python 3 programming language. You can easily download projects from the book’s web page. Let’s start exploring with Sense HAT.
Architecture, Programming and Applications
The MSP430 is a popular family of microcontrollers from Texas Instruments. In this book we will work with the smallest type, which is the powerful MSP430G2553. We will look at the capabilities of this microcontroller in detail, as it is well-suited for self-made projects because it is available in a P-DIP20 package.
We will take a closer look at the microcontroller and then build, step by step, some interesting applications, including a 'Hello World' blinking LED and a nice clock application, which can calculate the day of the week based on the date.
You also will learn how to create code for the MSP microcontroller in assembler. In addition to that, we will work with the MSP-Arduino IDE, which makes it quite easy to create fast applications without special in-depth knowledge of the microcontrollers.
All the code used in the book is available for download from the Elektor website.
In dit boek gebruiken we JAL (Just Another Language) om de PIC-microcontroller te programmeren in 60 oefeningen. JAL is makkelijk in gebruik en is een goede basis om programmeren in andere talen snel te leren. Na het lezen en toepassen van de voorbeelden in dit boek kan iedereen die zich hierin serieus heeft verdiept met behulp van JAL zelf de microcontroller aansturen. Je leert onder meer het programmeren van timers, analoog/digitaal omzetters, comparators, pulsbreedte regeling voor motoren en geluid, LED- en LCD-scherm aansturing, USB-connectie en communicatiemogelijkheden met computers of andere microcontrollers.
Ook weet je aan het eind van het boek wat je moet doen om nu nog onbekende mogelijkheden te gaan toepassen. Met deze kennis kan iedereen van beginner tot meer gevorderde zijn creativiteit vorm geven in projecten met microcontrollers.
Wil je verder met leren programmeren dan legt dit boek ook een zeer goede basis. Wie goed met JAL overweg kan en zich de gestructureerde wijze van denken heeft aangeleerd, zal de stap naar andere programmeertalen zoals Python, C++ enz. kunnen maken. Ook het programmeren van minicomputers zoals de Raspberry Pi en Arduino zijn mogelijkheden.
Om te starten is geen kennis van elektronica nodig. Wie niets weet van elektronica, krijgt overal in het boek de noodzakelijke kennis aangereikt. Alle belangrijke en benodigde informatie staat in de tekst.
EAGLE – the “Easily Applicable Graphical Layout Editor“ is a professional-grade CAD (computer aided design) software package for the design and drafting of electronic schematics as well as the design and fabrication of printed circuit boards (PCBs).
This publication, the ‘EAGLE Advanced User Guide’ provides the experienced EAGLE user with insight into using some of the more advanced features of EAGLE software. It is not a guide to teach the reader the basic concepts of EAGLE, nor does it discuss the ‘how to’ of the EAGLE interface and the simpler operations and commands of the software. That is the purpose of the author’s previous title EAGLE V6 Getting Started Guide also published by Elektor.
This book is intended as an enduring document covering the more advanced modules, commands, and functions which make up EAGLE. It is hoped that this book will sit on the desk or the bookshelf of the EAGLE user, and provide a quick, succinct reference to assist with more complex applications and uses of EAGLE – an ‘EAGLE User’s Companion’, if you like.
Complementing the EAGLE Advanced User Guide, the EAGLE User Language manual is included in this book in unabridged form, reproduced with permission of CadSoft GmbH.
At the time of writing, the material in this book covers version 7 of the EAGLE software suite.
Dit boek gaat over de Raspberry Pi, en over het programmeren in C. De programmeertaal C en het besturingssysteem Linux (Raspbian) passen uitstekend bij elkaar. Alles wat we nodig hebben om in C te programmeren wordt meegeleverd met het besturingssysteem van de Raspberry Pi.
In dit boek leert u hoe C gebruikt wordt met de Raspberry Pi, en krijgt u een overzicht van de taal.
WiringPi is een softwarebibliotheek voor de Raspberry Pi waarmee C hardware-uitbreidingen kan benaderen. Die bibliotheek wordt gebruikt om sensoren uit te lezen en om extra hardware aan te sturen. U gaat experimenteren met LED’s en schakelaars, met motoren, met geluid en met sensoren voor temperatuur, luchtdruk, en luchtvochtigheid.
Met een Linux-systeem kunt u een webserver maken, inclusief interactieve websites met PHP en WiringPi. Daarom is ook een beknopt overzicht van HTML en PHP in het boek opgenomen. In de voorbeelden worden sensoren via het web uitgelezen en worden apparaten bestuurd. In het laatste voorbeeld wordt een temperatuurlogger gemaakt. Die meet elk kwartier de temperatuur. Een tabel met de meetwaarden kan via het web worden uitgelezen.
Alle voorbeeldprogramma’s kunnen worden gedownload van de website van Elektor.
Dans ce livre, Rémy Mallard initie les débutants à la programmation des microcontrôleurs PIC de Microchip. Après une introduction (pas trop longue) à des principes essentiels de programmation, il propose des chapitres qui regroupent les informations théoriques et pratiques nécessaires à la réalisation de chaque montage.
Il fait la part belle aux « petits » microcontrôleurs 8 bits parce qu'ils sont bon marché et faciles à trouver. Toutefois comme il l'écrit : « ce n'est ni vouloir s'enfermer dans sa coquille, ni faire preuve d'insociabilité, que de s'attacher à ces petites bêtes… Cette famille 8 bits, même si on la qualifie « de base », permet tout de même de disposer de comparateurs, d'oscillateur interne, de modules de conversion analogique/numérique (CAN), de modules de communication à deux fils ou série, de générateurs à rapport cyclique variable entre autres ». C'est pourquoi les réalisations proposées vont bien au-delà du simple chenillard à LED et couvrent un grand nombre de besoins. Le lecteur apprendra comment interfacer des capteurs avec un microcontrôleur, comment acquérir et stocker des données, ou encore comment établir une liaison USB ou Ethernet pour transmettre des données. Toutes ces techniques, combinées les unes avec les autres comme des briques, permettront au lecteur de créer par la suite des montages encore plus ambitieux.
Le logiciel des différents montages est codé en langage Pascal. mikroPascal, l'environnement de développement proposé par MikroElektronika et utilisé par l'auteur, dispose dans sa version gratuite de toutes les fonctions (éditeur, débogueur, simulateur, compilateur, pilotage des programmateurs) de la version payante, mais la taille du code est limitée à 2 Ko (ce qui suffisant pour la plupart des projets du livre). Le lecteur a le choix du programmateur pour transférer le code dans le microcontrôleur (matériel MikroElektronika ou Microchip).
Après la lecture de ce livre, gagné par la bonne humeur communicative de Rémy et fort de sa longue expérience (qu'il partage volontiers), le lecteur n'aura qu'une seule envie : aller plus loin (transposer le code dans d'autres langages, le porter sur d'autres plates-formes de développement, s'attaquer aux PIC32…).
A Beginner's Guide to AI and Edge Computing
Artificial Intelligence (AI) is now part of our daily lives. With companies developing low-cost AI-powered hardware into their products, it is now becoming a reality to purchase AI accelerator hardware at comparatively very low costs. One such hardware accelerator is the Hailo module which is fully compatible with the Raspberry Pi 5. The Raspberry Pi AI Kit is a cleverly designed hardware as it bundles an M.2-based Hailo-8L accelerator with the Raspberry Pi M.2 HAT+ to offer high speed inferencing on the Raspberry Pi 5. Using the Raspberry Pi AI Kit, you can build complex AI-based vision applications, running in real-time, such as object detection, pose estimation, instance segmentation, home automation, security, robotics, and many more neural network-based applications.
This book is an introduction to the Raspberry Pi AI Kit, and it is aimed to provide some help to readers who are new to the kit and wanting to run some simple AI-based visual models on their Raspberry Pi 5 computers. The book is not meant to cover the detailed process of model creation and compilation, which is done on an Ubuntu computer with massive disk space and 32 GB memory. Examples of pre-trained and custom object detection are given in the book.
Two fully tested and working projects are given in the book. The first project explains how a person can be detected and how an LED can be activated after the detection, and how the detection can be acknowledged by pressing an external button. The second project illustrates how a person can be detected, and how this information can be passed to a smart phone over a Wi-Fi link, as well as how the detection can be acknowledged by sending a message from the smartphone to your Raspberry Pi 5.
35 Touch Develop & MicroPython Projects
The BBC micro:bit is a credit sized computer based on a highly popular and high performance ARM processor. The device is designed by a group of 29 partners for use in computer education in the UK and will be given free of charge to every secondary school student in the UK.
The device is based on the Cortex-M0 processor and it measures 4 x 5 cm. It includes several important sensors and modules such as an accelerometer, magnetometer, 25 LEDs, 2 programmable push-button switches, Bluetooth connectivity, micro USB socket, 5 ring type connectors, and a 23-pin edge connector. The device can be powered from its micro USB port by connecting it to a PC, or two external AAA type batteries can be used.
This book is about the use of the BBC micro:bit computer in practical projects. The BBC micro:bit computer can be programmed using several different programming languages, such as Microsoft Block Editor, Microsoft Touch Develop, MicroPython, and JavaScript.
The book makes a brief introduction to the Touch Develop programming language and the MicroPython programming language. It then gives 35 example working and tested projects using these language. Readers who learn to program in Touch Develop and MicroPython should find it very easy to program using the Block Editor or any other languages.
The following are given for each project:
Title of the project
Description of the project
Aim of the project
Touch Develop and MicroPython program listings
Complete program listings are given for each project. In addition, working principles of the projects are described briefly in each section. Readers are encouraged to go through the projects in the order given in the book.
Il n'existe que quelques séries de 50 projets passionnés pour initier la programmation JAL et maîtriser les microcontrôleurs PIC. La simple LED clignotante à la vision artificielle, l'alarme laser à la souris USB taquine, l'indicateur de niveau capacitif et le gradateur de lumière, ces projets s'appuient sur des consignes et des distrayants. Il est nécessaire d'étudier les techniques de base utilisées pour communiquer la commande d'un relais, et les caractéristiques des signaux utilisés par différents capteurs (constitués par l'exemple d'un codeur rotatif), la communication par bus I²C, SPI, RS232, USB , affiches de 7 segments et avec le bus CAN. On y apprend à pratiquer la commande de largeur d'impulsion, la conversion analogique-numérique et inversement, le traitement des interruptions, et bien des astuces.
L'auteur doit être enthousiaste et désireux de progresser dans son appréciation.
Abordez-le comme une récréatif et pédagogique : assemblez et utilisez les projets proposés. Les explications claires, les schémas et les photographies servent à révéler une activité enrichissante et captivante.
Considérez la conception, le style et les détails du projet. A l'aide de microcontrôleurs et de l'utilisation de compositions et de projets, l'exploitation des techniques est pleinement expliquée. Avec l'augmentation de l'apprentissage après la spécification, l'auteur continue avec les contrôles : le 16f877A, le 18f4455, et le18f4685. N'hésitez pas à nous contacter pour plus d'informations sur le projet et à utiliser l'adaptateur pour garantir une bonne utilisation. Vous apprendrez d'ailleurs comment transposer vos programmes d'un microcontrôleur à Utre. La procédure de transfert du programme du microcontrôleur via le programmateur Wisp648 est la procédure de test finale.
C'est aussi un guide de référence, comprenant des sources d'informations : une explication de la durée de la programmation des JAL et de l'utilisation des bibliothèques d'extension. Les outils de programmation (environnement de développement JALedit/XWisp, bibliothèques JAL, programmes décrits) sont téléchargeables gratuitement (voir ci-dessous). L'index permet de retrouver rapidement un projet et donc les principales commandes dans le contexte. En tant qu'expert, vous êtes le guide principal !
Lancé en mars 2012, plus les 30 millions d'exemples nanométriques du Raspberry Pi exposés. Il s’agit d’une contribution à la révolution des technologies de l’information et d’un grand stimulant pour le développement du monde de l’électronique. Le succès de la « tarte à la framboise » (traduction littérale de Raspberry Pie) est le résultat de l'industrie micro-électronique de transformation des produits.
Eben Upton, son créateur, âme à l'origine, les acheteurs étaient presque tous des makers , adultes en général. Cependant la plupart d'entre eux étaient également des ingénieurs professionnels. Rapidité, les gens sont responsables de leurs activités personnelles lors de l'utilisation du Raspberry Pi avec une plateforme informatique stable, et ils sont également adoptés pour leur métier.
La Fondation Raspberry Pi édite un magazine édité par la communauté Raspberry Pi : le MagPi (en anglais). Le magazine aborde les passions selon la nature du numérique nano-ordonné et global. Il contient des bancs d'essai de nouveaux produits, de nombreux tutoriels et un grand nombre de projets. Les membres de la communauté Raspberry Pi participent à leur expérience.
La maison d'édition Elektor s'associe à la Fondation Raspberry Pi pour la publication dans le magazine français MagPi. Il est conçu pour assembler 84 projets publics du MagPi en développant l'utilisation du Raspberry Pi et son inspiration.
Grâce à la taille fine et aux possibilités du Raspberry Pi, les créateurs du monde sont fiers des idées des plus folles.
Partez en voyage dans un monde où est faisable !
Le Raspberry Pi à toutes les sauces pour ?
s'inspirateur des projets réalisés par les membres de la communauté
dénicher des utilisations inouïes
découvrir des accessoires et technologies diverses
entrer dans une communauté intégrée et active de Raspberry Pi
Build your own AI microcontroller applications from scratch
The MAX78000FTHR from Maxim Integrated is a small development board based on the MAX78000 MCU. The main usage of this board is in artificial intelligence applications (AI) which generally require large amounts of processing power and memory. It marries an Arm Cortex-M4 processor with a floating-point unit (FPU), convolutional neural network (CNN) accelerator, and RISC-V core into a single device. It is designed for ultra-low power consumption, making it ideal for many portable AI-based applications.
This book is project-based and aims to teach the basic features of the MAX78000FTHR. It demonstrates how it can be used in various classical and AI-based projects. Each project is described in detail and complete program listings are provided. Readers should be able to use the projects as they are, or modify them to suit their applications. This book covers the following features of the MAX78000FTHR microcontroller development board:
Onboard LEDs and buttons
External LEDs and buttons
Using analog-to-digital converters
I²C projects
SPI projects
UART projects
External interrupts and timer interrupts
Using the onboard microphone
Using the onboard camera
Convolutional Neural Network
STmicroelectronics’ wireless IoT & wearable sensor development kit
‘SensorTile.box’ is a portable multi-sensor circuit board housed in a plastic box and developed by STMicroelectronics. It is equipped with a high-performance 32-bit ARM Cortex-M4 processor with DSP and FPU, and various sensor modules, such as accelerometer, gyroscope, temperature sensor, humidity sensor, atmospheric pressure sensor, microphone, and so on. SensorTile.box is ready to use with wireless IoT and Bluetooth connectivity that can easily be used with an iOS or Android compatible smartphone, regardless of the level of expertise of the users. SensorTile.box is shipped with a long-life battery and all the user has to do is connect the battery to the circuit to start using the box.
The SensorTile.box can be operated in three modes: Basic mode, Expert mode, and Pro mode. Basic mode is the easiest way of using the box since it is pre-loaded with demo apps and all the user has to do is choose the required apps and display or plot the measured data on a smartphone using an app called STE BLE Sensor. In Expert mode users can develop simple apps using a graphical wizard provided with the STE BLE Sensor. Pro mode is the most complex mode allowing users to develop programs and upload them to the SensorTile.box.
This book is an introduction to the SensorTile.box and includes the following:
Brief specifications of the SensorTile.box; description of how to install the STE BLE Sensor app on an iOS or Android compatible smartphone required to communicate with the box.
Operation of the SensorTile.box in Basic mode is described in detail by going through all of the pre-loaded demo apps, explaining how to run these apps through a smartphone.
An introduction to the Expert mode with many example apps developed and explained in detail enabling users to develop their own apps in this mode. Again, the STE BLE Sensor app is used on the smartphone to communicate with the SensorTile.box and to run the developed apps.
The book then describes in detail how to upload the sensor data to the cloud. This is an important topic since it allows the sensor measurements to be accessed from anywhere with an Internet connection, at any time.
Finally, Pro mode is described in detail where more experienced people can use the SensorTile.box to develop, debug, and test their own apps using the STM32 open development environment (STM32 ODE). The Chapter explains how to upload the developed firmware to the SensorTile.box using several methods. Additionally, the installation and use of the Unicleo-GUI package is described with reference to the SensorTile.box. This PC software package enables all of the SensorTile.box sensor measurements to be displayed or plotted in real time on the PC.
