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Il s'agit d'un kit de bricolage simple utilisant l'ESP32-S3 3,5" TFT parallèle de Makerfabs avec module tactile (320 x 480) et Mabee MLX90640 pour surveiller la température et l'afficher sur l'écran ou l'enregistrer sur une carte SD. C'est un bel outil pour tester les circuits et non -détection de température de contact. Caractéristiques Basé sur ESP32-S3, TFT 3,5 pouces avec tactile capacitif Vérification automatique du point de température le plus élevé Précision de la température : <1°C Convient aux applications telles que la vérification de la température humaine ou le débogage des cartes électroniques Tous les matériels et logiciels sont ouverts, les utilisateurs peuvent modifier et ajouter plus de fonctions, telles que la transmission de données WiFi/Bluetooth Téléchargements Micrologiciel par défaut Nouveau firmware de surveillance à distance Blog

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A Hands-On Lab Course This introduction to circuit design is unusual in several respects. First, it offers not just explanations, but a full course. Each of the twenty-five sessions begins with a discussion of a particular sort of circuit followed by the chance to try it out and see how it actually behaves. Accordingly, students understand the circuit's operation in a way that is deeper and much more satisfying than the manipulation of formulas. Second, it describes circuits that more traditional engineering introductions would postpone: on the third day, we build a radio receiver; on the fifth day, we build an operational amplifier from an array of transistors. The digital half of the course centers on applying microcontrollers, but gives exposure to Verilog, a powerful Hardware Description Language. Third, it proceeds at a rapid pace but requires no prior knowledge of electronics. Students gain intuitive understanding through immersion in good circuit design. The course is intensive, teaching electronics in day-at-a-time practical doses so that students can learn in a hands-on way. The integration of discussion of design with a chance to try the circuits means students learn quickly. The course has been tried and tested, and proven successful through twenty-five years of teaching. The book is practical: it avoids mathematics and mathematical arguments and even includes a complete list of parts needed in the laboratory exercises, including where and how to buy them. The much-anticipated new edition of 'Learning the Art of Electronics' is here! It defines a hands-on course, inviting the reader to try out the many circuits that it describes. Several new labs (on amplifiers and automatic gain control) have been added to the analog part of the book, which also sees an expanded treatment of meters. Many labs now have online supplements. The digital sections have been rebuilt. An FPGA replaces the less-capable programmable logic devices, and a powerful ARM microcontroller replaces the 8051 previously used. The new microcontroller allows for more complex programming (in C) and more sophisticated applications, including a lunar lander, a voice recorder, and a lullaby jukebox. A new section explores using an Integrated Development Environment to compile, download, and debug programs. Substantial new lab exercises, and their associated teaching material, have been added, including a project reflecting this edition's greater emphasis on programmable logic. Online resources including online chapters, teaching materials and video demonstrations can be found at: www.LearningTheArtOfElectronics.com Downloads Table of Contents

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Learn programming for Alexa devices, extend it to smart home devices and control the Raspberry Pi The book is split into two parts: the first part covers creating Alexa skills and the second part, designing Internet of Things and Smart Home devices using a Raspberry Pi. The first chapters describe the process of Alexa communication, opening an Amazon account and creating a skill for free. The operation of an Alexa skill and terminology such as utterances, intents, slots, and conversations are explained. Debugging your code, saving user data between sessions, S3 data storage and Dynamo DB database are discussed. In-skill purchasing, enabling users to buy items for your skill as well as certification and publication is outlined. Creating skills using AWS Lambda and ASK CLI is covered, along with the Visual Studio code editor and local debugging. Also covered is the process of designing skills for visual displays and interactive touch designs using Alexa Presentation Language. The second half of the book starts by creating a Raspberry Pi IoT 'thing' to control a robot from your Alexa device. This covers security issues and methods of sending and receiving MQTT messages between an Alexa device and the Raspberry Pi. Creating a smart home device is described including forming a security profile, linking with Amazon, and writing a Lambda function that gets triggered by an Alexa skill. Device discovery and on/off control is demonstrated. Next, readers discover how to control a smart home Raspberry Pi display from an Alexa skill using Simple Queue Service (SQS) messaging to switch the display on and off or change the color. A node-RED design is discussed from the basic user interface right up to configuring MQTT nodes. MQTT messages sent from a user are displayed on a Raspberry Pi. A chapter discusses sending a proactive notification such as a weather alert from a Raspberry Pi to an Alexa device. The book concludes by explaining how to create Raspberry Pi as a stand-alone Alexa device.

Lis Plus Moins

LoRaWAN s'est remarquablement développé en tant que solution de communication dans l'IdO. The Things Network (TTN) y a contribué. The Things Network a été mis à niveau vers The Things Stack Community Edition (TTS (CE)). Les clusters TTN V2 ont été fermés vers la fin de l'année 2021. Ce livre vous explique les étapes nécessaires pour exploiter les n?uds LoRaWAN à l'aide de TTS (CE) et peut-être étendre le réseau de passerelles avec votre propre passerelle. Entre-temps, il existe même des passerelles LoRaWAN adaptées à une utilisation mobile avec lesquelles vous pouvez vous connecter au serveur TTN via votre téléphone portable. L'auteur présente plusieurs n?uds LoRaWAN commerciaux et un nouveau matériel peu coûteux et alimenté par batterie pour construire des n?uds LoRaWAN autonomes. L'enregistrement des n?uds et des passerelles LoRaWAN dans le TTS (CE), la transmission des données collectées via MQTT et la visualisation via Node-RED, Cayenne, Thingspeak et Datacake permettent de réaliser des projets IdO complexes et des applications inédites à très faible coût. Ce livre vous permettra de fournir et de visualiser les données collectées avec des capteurs alimentés par batterie (n?uds LoRaWAN) sans fil sur Internet. Vous apprendrez les bases des applications de villes intelligentes et d'IdO qui permettent, entre autres, de mesurer la qualité de l'air, le niveau de l'eau, l'épaisseur de la neige, de déterminer les places de stationnement libres (smart parking) et de contrôler intelligemment l'éclairage public.

Lis Plus Moins

Learn programming for Alexa devices, extend it to smart home devices and control the Raspberry Pi The book is split into two parts: the first part covers creating Alexa skills and the second part, designing Internet of Things and Smart Home devices using a Raspberry Pi. The first chapters describe the process of Alexa communication, opening an Amazon account and creating a skill for free. The operation of an Alexa skill and terminology such as utterances, intents, slots, and conversations are explained. Debugging your code, saving user data between sessions, S3 data storage and Dynamo DB database are discussed. In-skill purchasing, enabling users to buy items for your skill as well as certification and publication is outlined. Creating skills using AWS Lambda and ASK CLI is covered, along with the Visual Studio code editor and local debugging. Also covered is the process of designing skills for visual displays and interactive touch designs using Alexa Presentation Language. The second half of the book starts by creating a Raspberry Pi IoT 'thing' to control a robot from your Alexa device. This covers security issues and methods of sending and receiving MQTT messages between an Alexa device and the Raspberry Pi. Creating a smart home device is described including forming a security profile, linking with Amazon, and writing a Lambda function that gets triggered by an Alexa skill. Device discovery and on/off control is demonstrated. Next, readers discover how to control a smart home Raspberry Pi display from an Alexa skill using Simple Queue Service (SQS) messaging to switch the display on and off or change the color. A node-RED design is discussed from the basic user interface right up to configuring MQTT nodes. MQTT messages sent from a user are displayed on a Raspberry Pi. A chapter discusses sending a proactive notification such as a weather alert from a Raspberry Pi to an Alexa device. The book concludes by explaining how to create Raspberry Pi as a stand-alone Alexa device.

Lis Plus Moins

Learning circuit design the fun way Welcome to the world of electronics! Getting started in electronics is not as difficult as you may think. Using this book, you will explore and learn the most important electrical and electronics engineering concepts in a fun way by doing various experiments and by simulating circuits. It will teach you electronics practically without getting into complex technical jargon and long calculations. As a result, you will be creating your own projects soon. No prior knowledge of electronics is required, only some basic algebra is used in a few simple calculations. Many tested and working projects and simulations are presented to familiarise yourself with the construction of electronic circuits. Circuit simulation is introduced at an early stage to enable you to experiment with circuits easily without breaking anything. You will learn: The concepts of voltage, current, and power AC and DC Basic lamp circuits with switches Passive components: resistors, capacitors & inductors RC & RCL circuits Electromagnetism Loudspeakers, relays, buzzers, and transformers Active components: diodes & LEDs, bipolar transistors & MOSFETs Transistor-based switching circuits Optocoupler circuits Astable & monostable multivibrators Using the 555 timer IC The operational amplifier Digital logic Advanced examples: amplifiers, oscillators, filters, and sensors Test and measurement tools Microcontrollers: Arduino UNO, ESP32, Raspberry Pi Pico, and Raspberry Pi Reading datasheets and best practices for selecting components EMC & EMI and norms & regulations

Lis Plus Moins

As demand for solar panel installation has risen sharply, especially for installations larger than balcony power plants, the order books of solar companies are full. If you ask for a quote today, you may have to wait a while, if your request isn't simply postponed indefinitely. Another consequence of the solar boom is that some companies are charging very high prices for installations. Yet there is an obvious and radical solution to the problem of excessive prices: Do it yourself, as the English say. The price of materials is currently affordable, and it's the ideal time for those who do the work themselves. They couldn't save more. Add to this the satisfaction of doing something useful, both economically and ecologically, and the pleasure of building yourself. In this special issue, you'll find a wide selection of Elektor assemblies, from solar panel controllers to solar water heaters and solar panel orientation systems. The issue also contains practical information on solar panel installation and the technology behind them. Finally, there are a number of articles on the subject of balcony power plants, from how to install them to how to connect them to the Internet... Contents BASICS Dimensioning Photovoltaic Panel ArraysAn introduction to photovoltaic energy and the commonest techniques,followed by simplified calculation models and setup guidelines. Light Sensor TechnologyMeasuring daylight using LEDs. Solar Power Made SimpleSolar charging with and without a controller. Cable Cross-sections and Energy Losses in Solar SystemsKey considerations on the minimum values to respect for electricalcurrent in solar panel cabling. Solar ModulesEverything you always wanted to know about solar panels... Ideal Diode ControllerDiode Circuits with Low Power Dissipation. TIPS Tracking for Solar Modules zBot Solar/Battery Power Supply Solar Cell Array Charger with Regulator Solar Cell Voltage Regulator Solar-Powered Night Light Alternative Solar Battery Charger PROJECTS Energy LoggerMeasuring and Recording Power Consumption. Tiny Solar SupplySunlight In, 3.3 V Out. A Do-It-Yourself DTURead Data from Small Inverters by μC. Solar ChargerPortable energy for people on the move. Solar Thermal Energy RegulatorMaximum power point tracking explored. 2-amp Maximum Power Tracking ChargerSolar Power To The Max. Computer-driven HeliostatFollow the sun or the stars. Garden LightingUsing solar cells. Solar Panel Voltage Converter for IoT DevicesYes we CAN exploit indoor lighting. Travel ChargerFree power in the mountains. Solar Cell Battery Charger/MonitorWith protection against deep discharge. Solar-powered Battery ChargerPIC12C671 avoids overcharging and deep charging. Converters for Photovoltaic PanelsContributed by TME (Transfer MultisortElektronik). Solar Charging RegulatorFor panels up to 53 watts. Solar-Powered ChargerFor lead-acid batteries. CAN Bus + Arduino for Solar PV Cell MonitoringDetect and locate serviceable panels in large arrays. Balcony Power Plant 2.0The latest: solar panels, installation and inverters

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Maîtriser le langage et la plateforme de développement Beaucoup de gens aimeraient apprendre Java mais se lancer n'est pas facile puisque programmer avec Java nécessite au moins deux choses : maîtriser le langage de programmation et l'environnement de développement. A l'aide de nombreux exemples, ce livre montre comment le langage est structuré. De plus, il utilise l'environnement de développement Eclipse comme exemple d'outil puissant pour enseigner le développement de programmes Java. Dans Basics, la première partie du livre, vous acquérez vos connaissances de base sur Java et Eclipse. Cette partie pose les bases de la programmation, vous donne un aperçu de la technologie Java et vous montre les particularités de la programmation orientée objet. Dans la deuxième partie intitulée Java Language, tout tourne autour des subtilités du langage Java et c'est là que sont créées les premières petites applications Java, aidées par un savant mélange de partie connaissances et d'exercices pratiques. La technologie Java est à la fois le nom et le thème de la troisième partie qui vous présente également les règles à respecter lors de la programmation, ce que sont les bibliothèques de classes et leurs avantages. De plus, vous apprendrez comment tester des programmes, ce que sont les algorithmes et comment les programmer. La quatrième partie, Projets Java, vous permet d'appliquer tous les éléments précédents dans une application avec une interface utilisateur graphique. Le projet montre comment développer une application plus grande pièce par pièce avec l'environnement de développement Eclipse. L'annexe se termine par une section sur les erreurs fréquentes pouvant survenir lors de l'utilisation d'Eclipse et un glossaire.

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Practical Applications and Project with Arduino, ESP32, and RP2040 Immerse yourself in the fascinating world of control engineering with Arduino and ESP32! This book offers you a practical introduction to classic and modern control methods, including PID controllers, fuzzy logic, and sliding-mode controllers. In the first part, you will learn the basics of the popular Arduino controllers, such as the Arduino Uno and the ESP32, as well as the integration of sensors for temperature and pH measurement (NTC, PT100, PT1000, and pH sensor). You will learn how to use these sensors in various projects and how to visualize data on a Nextion TFT display. The course continues with an introduction to actuators such as MOSFET switches, H-bridges, and solid-state relays, which are used to control motors and actuators. You will learn to analyze and model controlled systems, including PT1 and PT2 control. The book focuses on the implementation of fuzzy and PID controllers for controlling temperature and DC motors. Both the Arduino Uno and the ESP32 are used. The sliding-mode controller is also introduced. In the second-to-last chapter, you will explore the basics of neural networks and learn how machine learning can be used on an Arduino. In the last chapter, there is a practical example of a fuzzy controller for feeding electricity into the household grid. This book is the perfect choice for engineers, students, and electronics engineers who want to expand their projects with innovative control techniques.

Lis Plus Moins

Learning circuit design the fun way Welcome to the world of electronics! Getting started in electronics is not as difficult as you may think. Using this book, you will explore and learn the most important electrical and electronics engineering concepts in a fun way by doing various experiments and by simulating circuits. It will teach you electronics practically without getting into complex technical jargon and long calculations. As a result, you will be creating your own projects soon. No prior knowledge of electronics is required, only some basic algebra is used in a few simple calculations. Many tested and working projects and simulations are presented to familiarise yourself with the construction of electronic circuits. Circuit simulation is introduced at an early stage to enable you to experiment with circuits easily without breaking anything. You will learn: The concepts of voltage, current, and power AC and DC Basic lamp circuits with switches Passive components: resistors, capacitors & inductors RC & RCL circuits Electromagnetism Loudspeakers, relays, buzzers, and transformers Active components: diodes & LEDs, bipolar transistors & MOSFETs Transistor-based switching circuits Optocoupler circuits Astable & monostable multivibrators Using the 555 timer IC The operational amplifier Digital logic Advanced examples: amplifiers, oscillators, filters, and sensors Test and measurement tools Microcontrollers: Arduino UNO, ESP32, Raspberry Pi Pico, and Raspberry Pi Reading datasheets and best practices for selecting components EMC & EMI and norms & regulations

Lis Plus Moins

Cette clé USB contient une sélection de plus de 300 articles liés à Arduino publiés dans le magazine Elektor. Le contenu comprend à la fois des articles de fond et des projets sur les sujets suivants : Développement logiciel et matériel : tutoriels sur le développement logiciel avec l’IDE Arduino, Atmel Studio, les shield, et les concepts essentiels de programmation. Apprentissage : le Microcontroller Bootcamp propose une approche structurée pour programmer des systèmes embarqués. Acquisition et mesure de données : projets comme un enregistreur de données 16 bits, un tachymètre pour tour, et un analyseur de réseau électrique pour capturer et analyser des signaux en temps réel. Communication sans fil : apprenez à mettre en œuvre des réseaux sans fil, créer une interface Android, et communiquer efficacement avec des microcontrôleurs. Robotique et automatisation : le Arduino Nano Robot Controller, des cartes de support pour l'automatisation, et l'exploration de divers shield Arduino pour enrichir les fonctionnalités. Projets à construire soi-même : Des projets uniques tels qu’un projecteur laser, une horloge et un thermomètre Numitron, un récepteur TBF, Theremino, et des interfaces LED tactiles mettent en valeur des applications créatives. Que vous soyez débutant ou expérimenté, cette collection est une ressource précieuse pour apprendre, expérimenter et repousser les limites de la technologie Arduino.

Lis Plus Moins