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Easy and Affordable Digital Signal ProcessingThe aim of this book is to teach the basic principles of Digital Signal Processing (DSP) and to introduce it from a practical point of view using the bare minimum of mathematics. Only the basic level of discrete-time systems theory is given, sufficient to implement DSP applications in real time. The practical implementations are described in real time using the highly popular ESP32 DevKitC microcontroller development board. With the low cost and extremely popular ESP32 microcontroller, you should be able to design elementary DSP projects with sampling frequencies within the audio range. All programming is done using the popular Arduino IDE in conjunction with the C language compiler.After laying a solid foundation of DSP theory and pertinent discussions on the main DSP software tools on the market, the book presents the following audio-based sound and DSP projects: Using an I²S-based digital microphone to capture audio sound Using an I²S-based class-D audio amplifier and speaker Playing MP3 music stored on an SD card through an I²S-based amplifier and speaker Playing MP3 music files stored in ESP32 flash memory through an I²S-based amplifier and speaker Mono and stereo Internet radio with I²S-based amplifiers and speakers Text-to-speech output with an I²S-based amplifier and speaker Using the volume control in I²S-based amplifier and speaker systems A speaking event counter with an I²S-based amplifier and speaker An adjustable sinewave generator with I²S-based amplifier and speaker Using the Pmod I²S2 24-bit fast ADC/DAC module Digital low-pass and band-pass real-time FIR filter design with external and internal A/D and D/A conversion Digital low-pass and band-pass real-time IIR filter design with external and internal A/D and D/A conversion Fast Fourier Transforms (FFT)

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De FNIRSI TDM-120P is een multimeter met warmtebeeldtechnologie die thermische beeldvorming combineert met traditionele multimeterfuncties. Hierdoor levert het apparaat uitgebreidere en intuïtievere testresultaten voor elektrische tests en aanverwante toepassingen. Het wordt veelvuldig gebruikt in sectoren zoals elektrotechniek, industriële productie, de bouw en beveiligingsmonitoring. De TDM-120P biedt betrouwbare technische ondersteuning bij het testen van apparatuur, het opsporen van defecten en onderhoudsbeheer, en draagt zo bij aan een hogere productie-efficiëntie, betere productkwaliteit en meer veiligheid. Kenmerken 2-in-1: Warmtebeeldcamera + True RMS-multimeter (19.999 counts) 120 x 90 HD-beeldkwaliteit | Hoge thermische gevoeligheid <60 mK Temperatuurbereik -20°C tot 400°C | Instelbare emissiviteit 0,01–1,00 2,8-inch LCD-touchscreen | 7 kleurenpaletten | Opslaan met één druk op de knop & USB-export Volledige multimeterfuncties: AC/DC-spanning, weerstand en capaciteit Brede inzetbaarheid: HVAC, lekdetectie, elektrotechniek en autoreparatie Specificaties 7 kleurenpaletten Arctic / Hot Iron / Iron Red / Rainbow / Lava / Black Hot / White Hot Detectortype Vanadiumoxide Gezichtsveld 50° Scherm 2,8-inch LCD-touchscreen Beeldsnelheid ≤25 Hz Infraroodresolutie 120 x 90 Temperatuurweergave Middelpunt, automatische detectie van hoogste/laagste temperatuur Temperatuurbereik -20°C ~ 400°C (-4°F ~ 752°F) Temperatuureenheid °C / °F Nauwkeurigheid ±2°C of ±2% (hoogste gemeten waarde) Alarm voor hoge/lage temperatuur Ja Emissiviteit Instelbaar van 0,01 tot 1 Talen Engels, Chinees Gelijkspanning (DC) Bereik: 1,9999 V / 19,999 V / 199,99 V / 1000 V Nauwkeurigheid: ±(0,5% +3) Wisselspanning (AC) Bereik: 1,9999 V / 19,999 V / 199,99 V / 750,0 V Nauwkeurigheid: ±(1% +3) Weerstand Bereik: 19,999 MΩ / 1,9999 MΩ / 199,99 kΩ / 19,999 kΩ Nauwkeurigheid: ±(0,5% +3) Bereik: 1,9999 kΩ / 199,99 Ω Nauwkeurigheid: ±(2,0% +3) Capaciteit Bereik: 999,9 μF / 99,99 μF / 9,999 μF / 999,9 nF / 99,99 nF / 9,999 nF Nauwkeurigheid: ±(2,0% +5) Bereik: 9,999 mF / 99,99 mF Nauwkeurigheid: ±(5,0% +20) Diode Ja Continuïteit Ja Inbegrepen 1x FNIRSI TDM-120P warmtebeeld-multimeter 2x Multimeter-meetsnoeren 1x Opbergtas 1x USB-kabel 1x Manual Downloads Manual Firmware v1.2.6

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Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. qu’est-ce que l’edge AI ?L’IA, intégrée à l’appareil découvrez Edge Impulse StudioConcevez et déployez facilement des modèles d’IA en périphérie détection de mots-clés avec Edge ImpulseCollecter, entraîner et déployer contrôle d’appareils par commande vocale avec le Nordic Thingy:53 Termes clés pour comprendre l’edge AI et le machine learning cours accéléré : démarrez avec Edge ImpulseApprenez à collecter, entraîner et déployer un modèle ML avec l’Arduino Nano 33 BLE Sense un nouveau chapitre pour ArduinoD’une carte pour amateurs à une plateforme d’edge computing premiers pas avec la détection d’objets sur des appareils edge détection de défauts sur circuits imprimésVision par ordinateur avec Raspberry Pi adapter l’IA aux appareils les plus compacts optimiser l’efficacité énergétique des appareils edge AI alimentés sur batterie grille-pain intelligentL’IA qui reconnaît le toast parfait Thundercomm Rubik Pi 3Raspberry Pi et l’edge AI, enfin réunis Leadership, ML embarqué et révolution de l’IA en périphérie modèles vision-langage en périphérieCascade de modèles pour une meilleure fiabilité découvrez Edge ImpulseQuestions de la communauté Elektor mise à jour du projet n°5 : Compteur d’énergie ESP32Utiliser l’Edge AI pour identifier les charges domestiques reconnaissance de mouvements avec détection d’anomaliesUn tutoriel détaillé système de ventilation intelligent : fusion des données sonores et environnementalesUtilisation d’un microcontrôleur double-cœur et du ML pour l’automatisation des fenêtres et persiennes intégrer la commande vocale aux écouteurs et aux casques l'IA en périphérie : au cœur des appareils de demain

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Build Your Own RISC-V ControllerFirst Steps with the NEORV32 RISC-V Softcore for Low-Cost FPGAs How to Use Arduino’s Serial PlotterPlotting Graphs With Arduino Is Easy CLUE from AdafruitA Smart Solution for IoT Projects Buffer Board for the Raspberry Pi 400Protect the I/Os Raspberry Pi RP2040 Boards Aplenty A Handbook on DIY Electronic Security and EspionageSRAM Heated or Deep-Frozen Component IdentificationTips & Tricks, Best Practices and Other Useful Information DIY Touchless Light Switch Starting out in ElectronicsMatching and Transforming What’s New in Embedded Development?Rust and Keeping IoT Deployments Updated Infographics How the Industrial and Automotive Sectors Will Benefit from 5G Moving Coil RelaysPeculiar Parts, the series HomeLab ToursEverything Revolves Around the Tools... Understanding the Neurons in Neural Networks (Part 4)Embedded Neurons Magnetic Levitation the Very Easy WayThe Third and Most Compact Version PLC Programming with the Raspberry Pi and the OpenPLC ProjectVisualization of PLC Programs with AdvancedHMI From Life's ExperiencePack Up and Leave Under Your RadarMicrocontrollers You Should Know About Monitor and Debug Over the AirA Solution for Arduino, ESP32 and Co. Portable Temperature- and Humidity-Measuring DeviceUsing Ready-Made Modules Lithium Battery Pack RepairSave Money + More Power! GUIs with PythonMeme-Generator Three Questions to Build OnWhy, What, and Who? HexadokuThe Original Elektorized Sudoku

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This book is about the Raspberry Pi 3 computer and its use in various control and monitoring applications. The book explains in simple terms and with tested and working example projects, how to configure the Raspberry Pi 3 computer, how to install and use the Linux operating system, and how to write hardware based applications programs using the Python programming language. The nice feature of this book is that it covers many Raspberry Pi 3 based hardware projects using the latest hardware modules such as the Sense HAT, Swiss Pi, MotoPi, Camera module, and many other state of the art analog and digital sensors. An important feature of the Raspberry Pi 3 is that it contains on-board Bluetooth and Wi-Fi modules. Example projects are given in the book on using the Wi-Fi and the Bluetooth modules to show how real-data can be sent to the Cloud using the Wi-Fi module, and also how to communicate with an Android based mobile phone using the Bluetooth module. The book is ideal for self-study, and is intended for electronic/electrical engineering students, practising engineers, research students, and for hobbyists. It is recommended that the book should be followed in the given Chapter order. Over 30 projects are given in the book. All the projects in the book are based on the Python programming language and they have been fully tested. Full program listings of every project are given in the book with comments and full descriptions. Experienced programmers should find it easy to modify and update the programs to suit their needs. The following sub-headings are given for each project to make it as easy as possible for the readers to follow the projects: Project title Description Aim of the project Raspberry Pi type Block diagram Circuit diagram Program listing

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Whether you are an electronics enthusiast or engineering professional, this book provides the reader with an introduction to the use of the CadSoft’s EAGLE PCB design software package. EAGLE is a user-friendly, powerful and affordable software package for the efficient design of printed circuit boards. It offers the same power and functionality to all users, at a smaller cost than its competitors. A free version of EAGLE is available to enthusiasts for their own use. EAGLE can be used on the main computing platforms including: Microsoft Windows (XP, Vista or Windows 7); Linux (based on kernel 2.6 or above) and Apple Mac OS X (Version 10.6 or higher). Any hardware that supports these software platforms will run the EAGLE application. The book is intended for anyone who wants an introduction to the capabilities of EAGLE. The reader may be a novice at PCB design or a professional wanting to learn about EAGLE, with the intention of migrating from another CAD package. This book will quickly allow you to: obtain an overview of the main modules of EAGLE: the schematic editor; layout editor and autorouter in one single interface; learn to use some of the basic commands in the schematic and layout editor modules of EAGLE; apply your knowledge of EAGLE commands to a small project; learn more about some of the advanced concepts of EAGLE and its capabilities; understand how EAGLE relates to the stages of PCB manufacture; create a complete project, from design through to PCB fabrication. The project discussed in the book is a popular, proven design from the engineering team at Elektor. After reading this book while practicing some of the examples, and completing the projects, the reader should feel confident about taking on more challenging endeavors.

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Het Miniware draadloze soldeerstation TS1C (met ingebouwd OLED-scherm en Bluetooth) is een intelligent soldeer tool dat in minder dan 20 seconden opwarmt tot 400°C. Dankzij de ingebouwde accu ligt de draadloze soldeerbout prettig in de hand en is hij gemakkelijk in gebruik. Kenmerken Nieuwe energieopslag technologie met hoogrenderende supercondensator, 10.000-level laad- en ontlaadtijden Separaat ontwerp + true wireless, geniet daardoor van het draadloos solderen BLE4.2 Bluetooth technologie voor het op afstand bedienen en instellen Standaard PD2 20 V met 45 W max opgenomen vermogen, en tot 36 W soldeervermogen, kan continu meer dan 180 soldeerverbindingen (0805) solderen met één enkele volledige lading Voorverwarming in het control station, om de verwarmingsefficiëntie te verbeteren Drie uitbreidingssleuven voor accessoires Control station Standard PD2 20 V met 45 W max opgenomen vermogen, overstroom beveiliging OLED-scherm met 128x64 pixels, weergave van de status van de soldeerbout in realtime Voorverwarming in het control station, om de verwarmingsefficiëntie te verbeteren Afstandsbediening en instelling: temperatuurregeling, menu instelling, weergave van informatie en status van het apparaat, enzovoort. Functioneert als soldeerstandaard en laadstation Drie uitbreidingssleuven voor meerdere aanvullende accessoires, zoals een sponssleuf Soldeerbout Ingebouwde 750F supercondensator voor energieopslag met hoog rendement, kan worden opgeladen via het control station (of in noodgevallen via de USB type-C-interface) 36 W maximaal verwarmingsvermogen, kan continu meer dan 180 soldeerverbindingen (0805) solderen met één enkele volledige lading Compatibel met Miniware 3,5 mm audio-interface soldeerpunten (TS80/80P soldeerstift serie) Boost modus (de knop op de pen ingedrukt houden) Inbegrepen TS1C Soldeerbout TS1C Control Station Soldeerstift (TS-B02) Siliconen kabel Sponsgleuf incl. spons Handleiding

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Ready-to-use devices and self-built Arduino nodes in the 'The Things Network' LoRaWAN has developed excellently as a communication solution in the IoT. The Things Network (TTN) has contributed to this. The Things Network was upgraded to The Things Stack Community Edition (TTS (CE)). The TTN V2 clusters were closed towards the end of 2021. This book shows you the necessary steps to operate LoRaWAN nodes using TTS (CE) and maybe extend the network of gateways with an own gateway. Meanwhile, there are even LoRaWAN gateways suitable for mobile use with which you can connect to the TTN server via your cell phone. The author presents several commercial LoRaWAN nodes and new, low-cost and battery-powered hardware for building autonomous LoRaWAN nodes. Registering LoRaWAN nodes and gateways in the TTS (CE), providing the collected data via MQTT and visualization via Node-RED, Cayenne, Thingspeak, and Datacake enable complex IoT projects and completely new applications at very low cost. This book will enable you to provide and visualize data collected with battery-powered sensors (LoRaWAN nodes) wirelessly on the Internet. You will learn the basics for smart city and IoT applications that enable, for example, the measurement of air quality, water levels, snow depths, the determination of free parking spaces (smart parking), and the intelligent control of street lighting (smart lighting), among others.

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The Peak Atlas ESR70 gold is an enhanced version of the previous Peak Atlas ESR70 Plus. It does everything that the ESR70 Plus did but better. It now measures capacitance up to 10x faster, and over a wider range, thanks to new test algorithms. The capacitance measurement is also much less influenced by parallel resistances or leakage current thanks to our new Triple-Slope measurement system. Using the supplied gold plated probes (removable), the Atlas ESR70 gold can measure ESR down to a resolution of 0.01 ohms, up to 40 ohms. It can even measure ESR for capacitors that are in-circuit. Probes are removable, allowing 2 mm compatible probes to be fitted. Audible alerts are produced for various ESR levels allowing you to perform many tests in succession without having to look at the display. The ESR70 automatically takes capacitive reactance into account, so even low value capacitors (down to 0.3 uF) can have the ESR measured accurately. Kenmerken Uses a single AAA Alkaline cell (included). Alphanumeric LCD with backlight. Automatic analysis-start when you apply the probes. Automatic capacitor discharge using controlled discharge function. ESR (and low DC resistance) measurement (even in-circuit). Capacitive reactance automatically taken into account to ensure accurate ESR. Capacitance measurement (if testing out-of-circuit). Audible alerts for various ESR levels. Extended ESR measurement range up to 40 Ohms. Optional probe alternatives easily fitted. New gold Features Improved LCD with better backlight. 10x faster capacitance measurement for large capacitors. Enhanced user options system. New triple-slope measurement system to vastly reduce the influence of parallel resistance and/or leakage current on capacitance measurements. Much wider capacitance measurement range now 0.3 uF to 90,000 uF (was 1uF to 22,000uF). Specificaties Analyzer type ESR and Capacitance Component types Capacitors (>0.3 uF) ESR range 0.00 Ohms to 40.0 Ohms ESR resolution From 0.01 Ohms In-circuit use ESR only Capacitance range 0.3 uF to 90000 uF Battery type 1.5 V Alkaline AAA Cell (supplied). Life typically 1500 ops Display type Alphanumeric LCD (with backlight) Inbegrepen Peak Atlas ESR70 gold Extra-long and extra-flexible test cables (450 mm of Silicone covered cable) 2 mm gold plated plugs and sockets with removeable gold plated crocodile clips Comprehensive illustrated user guide AAA Alkaline cell Downloads Datasheet (EN) User Guide (EN)

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Designing, Wiring, and Controlling Build Your Own Coffee Roaster is a practical guide to constructing and operating the Cobra Smart Roaster and its companion Open Roaster Controller (ORC). The e-book walks the reader through every stage of the build, from assembling the powerhead and wiring the system to installing and configuring the controller. Along the way, you’ll learn how to use the Raspberry Pi to bring precision and flexibility to your roasting process. Clear, step-by-step chapters cover: Powerhead construction and required components Low- and high-voltage wiring Installing the ORC, network setup, and using the web interface Roasting coffee with the Cobra in different setups, including hand-stir and bread-machine roasting Advanced topics such as manual mode, fixed profiles, Artisan-Scope connections, and ORC system programming A complete parts list, practical guidance throughout, and concise explanations make this e-book a useful reference for anyone interested in building, modifying, or understanding their own coffee-roasting system.

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De ZD-8965 is een digitaal temperatuurgecontroleerd desoldeerstation uitgerust met aardingsbeveiliging en een LCD-display voor temperatuurweergave. Ondanks het compacte en robuuste ontwerp is dit krachtige desoldeerstation eenvoudig met één hand te bedienen. De ZD-8965 is voorzien van een soldeerpistool met een geïntegreerd filter dat al het geëxtraheerde materiaal opvangt, waardoor continu gebruik mogelijk is door simpelweg de filters te vervangen. Bovendien is er een temperatuursensor in de punt ingebed, waardoor een snelle reactie op temperatuurschommelingen mogelijk is, voor consistente prestaties. Kenmerken Pas de temperatuur moeiteloos aan tussen 160°C en 480°C met de handige omhoog/omlaag-knoppen op het voorpaneel. LED-display om de temperatuur in °C/°F aan te geven Beschikt over een ergonomische pistoolgreep met een trekker voor snelle en efficiënte verwijdering van soldeerafval. Het verbeterde soldeerpistool is voorzien van een trigger aan de achterkant, waardoor het uitzonderlijk handig is om componenten te vervangen en te reinigen. Wordt geleverd met een hoogwaardig soldeerpistool en een stevige houder. Uitgerust met een krachtige verwarming die keer op keer zorgt voor optimale desoldeerprestaties. Specificaties Station Spanningsvoorziening 220-240 V Stroomverbrui 140 W Vakumdruk 600 mm HG Desoldeerpistool Stroomverbruik 140 W (18 V DC)Opwarmvermogen: 140 W Temperatuur 160-480°C Verwarmingselement Keramische verwarming Inbegrepen 1x ZD-8965 Desoldeerstation 2x Reserve soldeerpunten 3x Reinigingsnaalden voor desoldeertips 3x Reservefilter voor desoldeerpistool 1x Reservefilter voor desoldeerstation 1x Manual

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Practical Projects and Programs With Experimenting with Red Pitaya STEMlab Gen 2, Red Pitaya goes beyond a versatile board. It becomes a powerful laboratory instrument for precision measurement, analysis, and control. From the fundamentals of electronic project development, monitoring, control, and design to testing, this book walks you step-by-step through everything you need to know to harness the full potential of Red Pitaya hardware and software. The book presents real-time, FPGA-based projects that are developed on a PC using the Vivado environment, then transferred to the Red Pitaya for execution and testing. You will learn about enhanced performance, expanded I/O capabilities, improved FPGA features, and advanced connectivity options that open up new frontiers for precision measurement, monitoring, and control in your embedded applications. Inside the book you will discover: A deep dive into Red Pitaya architecture and hardware design Electronic experiments using Red Pitaya for measurement and monitoring Hands-on projects using the Python programming language Practical guidance for FPGA programming using Red Pitaya Red Pitaya FPGA projects using the Verilog HDL under Vivado IDE Practical design of electronic projects including measurement and testing Step-by-step examples that bridge theory and real-world implementation Whether you are designing your own electronic circuits, developing signal analysis tools, or creating real-time control or monitoring systems, this book provides you the knowledge and confidence you need to fully learn and customize the Red Pitaya platform.

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