Caractéristiques
Microcontrôleur ATmega328 avec chargeur de démarrage Optiboot
Compatible avec le bouclier R3
Convertisseur série-USB CH340C
Cavalier de niveau de tension de 3,3 V à 5 V
Cavaliers A4/A5
Régulateur de tension AP2112
Rubrique FAI
Tension d'entrée : 7 V - 15 V
1 connexion Qwiic
Vitesse d'horloge de 16 MHz
Mémoire Flash 32 Ko
Construction entièrement CMS
bouton de réinitialisation amélioré
Branchez un lecteur dans les en-têtes, utilisez un câble Qwiic, scannez votre étiquette d’identification 125kHz et l’ID 32 bits unique s’affichera à l’écran. L’appareil est livré avec une DEL de lecture et un buzzer, mais ne vous inquiétez pas, il y a un cavalier que vous pouvez couper pour désactiver le buzzer si vous voulez. En utilisant le système Qwiic pratique de SparkFun, aucune soudure n’est nécessaire pour le connecter au reste de votre système. Cependant, nous avons encore des broches espacées de 0,1' si vous préférez utiliser une platine d'expérimentation. En utilisant l’ATtiny84A de bord, le Qwiic RFID prend l’étiquette d’identification de six octets de votre carte RFID 125kHz, lui attache un horodatage, et le met sur une pile qui contient jusqu’à 20 scans RFID uniques à la fois. Cette information est facile à obtenir avec quelques commandes I2C simples.
L'Arduino Pro Mini est une carte à microcontrôleur basée sur l' ATmega328P.
Elle dispose de 14 broches d'entrée/sortie numériques (dont 6 peuvent être utilisées comme sorties PWM), de 6 entrées analogiques, d'un résonateur embarqué, d'un bouton de réinitialisation et de trous pour monter des connecteurs. Un connecteur à six broches peut être connectée à un câble FTDI ou à une carte breakout de Sparkfun pour fournir une alimentation et une communication USB à la carte.
L'Arduino Pro Mini est destiné à des montages semi-permanents sur des dispositifs ou dans des expositions. La carte est livrée sans connecteurs, ce qui permet d'utiliser différents types de connecteurs ou de souder directement les fils. La disposition des broches est compatible avec celle de l'Arduino Mini.
Spécifications
Microcontrôleur
ATmega328P
Alimentation de la carte
5-12 V
Tension de fonctionnement du circuit
5 V
Broches E/S numériques
14
Broches PWM
6
UART
1
SPI
1
I²C
1
Broches d'entrée analogiques
6
Interruptions externes
2
Courant continu par broche d'E/S
40 mA
Mémoire flash
32 Ko dont 2 Ko utilisés par le bootloader
SRAM
2 Ko
EEPROM
1 KB
Fréquence d'horloge
16 MHz
Dimensions
18 x 33,3 mm
Téléchargements
Fichiers Eagle
Schémas
An Introduction to RISC-V
RISC-V is an Instruction Set Architecture (ISA) that is both free and open. This means that the RISC-V ISA itself does not require a licensing fee, although individual implementations may do so. The RISC-V ISA is curated by a non-profit foundation with no commercial interest in products or services that use it, and it is possible for anyone to submit contributions to the RISC-V specifications. The RISC-V ISA is suitable for applications ranging from embedded microcontrollers to supercomputers.
This book will first describe the 32-bit RISC-V ISA, including both the base instruction set as well as the majority of the currently-defined extensions. The book will then describe, in detail, an open-source implementation of the ISA that is intended for embedded control applications. This implementation includes the base instruction set as well as a number of standard extensions.
After the description of the CPU design is complete the design is expanded to include memory and some simple I/O. The resulting microcontroller will then be implemented in an affordable FPGA development board (available from Elektor) along with a simple software application so that the reader can investigate the finished design.
ENTRE UE ET É-U : LE PLAISIR DU PARTAGE DE L'ÉLECTRONIQUEAU SOMMAIRE DE CE NUMÉROVISION ET PASSION D'INGÉNIEUR : L'ÉTINCELLE DU PLAISIRDÉMARRER AVEC MICROMODCOUP DE BAGUETTE MAGIQUE SUR LE JETBOT DE SPARKFUNOu comment j'ai perfectionné mon JetBot, animé par la carte NVIDIA Jetson NanoPROGRAMMATION D'UN FPGAJ'AI CONSTRUIT MA STATION DE GÉOLOCALISATION PAR SATELLITES GNSSGlobal Navigation Satellite SystemCLOCKCLOCK : HORLOGE RÉCURSIVEArduino donne l'heure avec un FPGASOUS LE CAPOT : INVENTOR'S KIT DE SPARKFUNPOINT DE VUE DE GLENN SAMALA, SPARKFUN : NOUVEAU PRODUITS, NOUVELLES ENTREPRISESCIRCUITS IMPRIMÉS SUR MESURE AVEC SPARKFUN À LA CARTERECONNAISSANCE VOCALE AVEC LE MODULE BLE ARTEMISINTRODUCTION À L'ÉCOSYSTÈME QWIIC POUR LE PROTOTYPAGE RAPIDEPOSTER QWIICSOUS LE CAPOT : SUPERCHARGEUR & BOOSTER POUR LIPO EN KITÉLECTRONIQUE MÉMORABLE DU PASSÉ DE SPARKFUNSTATIONNEMENT PARFAIT AVEC LIDARTRÉPANATION D'UN CIRCUIT IMPRIMÉ À PASTILLES INACCESSIBLESCONCEVOIR POUR VENDRE : RTK SURVEYOR DE SPARKFUNHELLO WORLD : RASPBERRY PI PICO ET RP2040Pleins feux sur les premiers microcontrôleur et microprocesseur de Raspberry PiFABRIQUER SOI-MÊME DES ROBOTS À QUATRE PATTESPOSTER - MICROMODDÉVELOPPEMENT D'IDO RISC-V DANS AWS AVEC LES BIBLIOTHÈQUES FREERTOSL'ÉLECTRONIQUE POUR LE PLAISIRConversation entre passionnésUNE SÉLECTION DE PRODUITS SPARKFUNHEXADOKUcasse-tête pour elektorniciens
It is becoming important for microcontroller users to quickly learn and adapt to new technologies and architecture used in high performance 32-bit microcontrollers. Many manufacturers now offer 32-bit microcontrollers as general purpose processors in embedded applications.
ARM provide 32 and 64-bit processors mainly for embedded applications. These days, the majority of mobile devices including mobile phones, tablets, and GPS receivers are based on ARM technology. The low cost, low power consumption, and high performance of ARM processors makes them ideal for use in complex communication and mixed signal applications.
This book makes use of the ARM Cortex-M family of processors in easy-to-follow, practical projects. It gives a detailed introduction to the architecture of the Cortex-M family. Examples of popular hardware and software development kits are described.
The architecture of the highly popular ARM Cortex-M processor STM32F107VCT6 is described at a high level, taking into consideration its clock mechanisms, general input/output ports, interrupt sources, ADC and DAC converters, timer facilities, and more. The information provided here should act as a basis for most readers to start using and programming the STM32F107VCT6 microcontroller together with a development kit.
Furthermore, the use of the mikroC Pro for ARM integrated development environment (IDE) has been described in detail. This IDE includes everything required to create a project; namely an editor, compiler, simulator, debugger, and device programmer.
Although the book is based on the STM32F107VCT6 microcontroller, readers should not find it difficult to follow the projects using other ARM processor family members.
50+ Android Apps with Raspberry Pi, ESP32 and Arduino
This book is about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be in either standalone mode or use an external processor. In standalone mode, the developed application runs only on the mobile device (e.g. Android). In external processor-based applications, the mobile device communicates with an external microcontroller-based processor, such as Raspberry Pi, Arduino, ESP8266, ESP32, etc.
In this book, many tested and fully working projects are given both in standalone mode and using an external processor. Full design steps, block programs, circuit diagrams, QR codes and full program listings are given for all projects.
The projects developed in this book include:
Using the text-to-speech component
Intonating a received SMS message
Sending SMS messages
Making telephone calls using a contacts list
Using the GPS and Pin-pointing our location on a map
Speech recognition and speech translation to another language
Controlling multiple relays by speech commands
Projects for the Raspberry Pi, ESP32 and Arduino using Bluetooth and Wi-Fi
MIT APP Inventor and Node-RED projects for the Raspberry Pi
The book is unique in that it is currently the only book that teaches how to develop projects using Wi-Fi and Node-RED with MIT App Inventor. The book is aimed at students, hobbyists, and anyone interested in developing apps for mobile devices.
All projects presented in this book have been developed using the MIT App Inventor visual programming language. There is no need to write any text-based programs. All projects are compatible with Android-based mobile devices. Full program listings for all projects as well as detailed program descriptions are given in the book. Users should be able to use the projects as they are presented, modifying them to suit their own needs.
Conçu pour les overclockers et autres utilisateurs expérimentés, ce ventilateur maintient votre Raspberry Pi 4 à une température de fonctionnement confortable, même sous une charge importante. Le ventilateur à température contrôlée fournit jusqu'à 1,4 CFM de flux d'air sur le processeur, la mémoire et le circuit intégré de gestion de l'alimentation. Le dissipateur thermique fourni (18 x 8 x 10 mm) avec tampon autocollant améliore le transfert de chaleur du processeur.
Le ventilateur du boîtier Raspberry Pi 4 fonctionne avec le Raspberry Pi 4 et le boîtier officiel Raspberry Pi 4.
A Guide to Powerful Programming for Embedded Systems
You must be a well-rounded professional to excel in the ever-evolving, rapidly developing embedded design and programming industry. Simply put, when it comes to electronics design and programming, the more topics you can master, the more you’ll flourish at your workplace and at your personal workbench. This shouldn’t be a surprise, as the line between the skills of a hardware engineer and software engineer is blurring. The former should have a good grasp of programming in order to build efficient systems. The latter should understand the details of the design (whether it’s a physical or virtual application) for which he or she is writing code. Thus, to be successful, a modern professional electronics engineer must have a solid grasp of both hardware design and programming.
Assembly Language Essentials is a matter-of-fact guide to Assembly that will introduce you to the most fundamental programming language of a processor. Unlike other resources about Assembly that focus exclusively on specific processors and platforms, this book uses the architecture of a fictional processor with its own hardware and instruction set. This enables you to consider the importance of Assembly language without having to deal with predetermined hardware or architectural restrictions.
You’ll immediately find this thorough introduction to Assembly to be a valuable resource, whether you know nothing about the language or you have used it before. The only prerequisite is that you have a working knowledge of at least one higher-level programming language, such as C or Java.
Assembly Language Essentials is an indispensible resource for electronics engineering professionals, academics, and advanced students looking to enhance their programming skills. The book provides the following, and more:
An introduction to Assembly language and its functionality
Significant definitions associated with Assembly language, as well as essential terminology pertaining to higher-level programming languages and computer architecture
Important algorithms that may be built into high-level languages, but must be done the “hard way” in Assembly language — multiplication, division, and polynomial evaluation
A presentation of Interrupt Service Routines with examples
A free, downloadable Assembler program for experimenting with Assembly
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par Saad Imtiaz
SparkFun Thing Plus Matter (MGM240P) : Une carte de développement IoT polyvalente basée sur "Matter" (Essai)
La "SparkFun Thing Plus Matter - MGM240P" est une carte de développement polyvalente et riche en fonctionnalités, conçue pour réaliser des appareils IoT basés sur...