Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Kiesschijftelefoon als afstandsbedieningvoor licht kies 1; voor koffie kies 2 GPS-gebaseerde snelheidsmeternooit meer bekeuringen RGB-stroboscoop met Arduinokleurige toepassing van een nuttig instrument Draadloze nooddrukknopmeer veiligheid met LoRa Alle begin......volgt de emitter Vrij te kiezen onafhankelijke hystereseniveaus voor comparatorenmet simulaties, spreadsheets en algebra Impedantie-analyzer op basis van een ESP32simpel, weinig onderdelen en goedkoop! Oost West Lab Bestzelfbouw moet gestimuleerd! Het MCCAB Arduino Nano Training Boardalle hardware voor de “Microcontrollers Hands-On Course” Uit het leven gegrepenmodern luddisme Sensor-ABC: de DS18B20 temperatuursensoraansluiting op de 1-Wire bus Gaan Matter en Thread het Smart Home redden?nieuwe standaarden om het slimme huis te vereenvoudigen Een kwestie van samenwerkingontwikkelen met het Thing Plus Matter Board en Simplicity Studio Elektor IIIIinfographicIoT en sensoren Matter, ExpressLink, Rainmaker – waar hebben we het over?vraaggesprek met Amey Inamdar van Espressif De juiste keuze van microcontroller-ontwikkelkitsvoor IoT- en IIoT-toepassingen Condensatoren gedragen zich niet altijd capacitief! Een NTP-klok met CircuitPythonwaarom zou je deze programmeertaal gebruiken? Bouw een cool IoT-display'met de Phambili Newt De doppler-bewegingssensor HB100theorie en praktijk Een gids voor puristisch programmeren (deel 1)voor STM32 en andere controllers Siglent SDM3045X-multimeter Microprocessoren voor embedded systemenvreemde onderdelen Microcontroller-documentatie verklaarddeel 3: blokschema’s en meer Low-power LoRa-weerstationbouw zelf een weerstation met een groot bereik Transverter voor de 70cm-band Klimaat aan ingenieurssnelheid is geboden! Hexadoku

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Elektromotoren zijn te vinden in talloze elektronica toepassingen en apparaten in en rond huis. In deze apparaten worden motorregelaars gebruikt om op efficiënte, veilige en nauwkeurige wijze de snelheid of de actuatorpositie van de gebruikte motor(en) te regelen.Elektromotoren kunnen worden geclassificeerd als gelijkstroom of wisselstroom, afhankelijk van het type spanning dat wordt gebruikt om ze te voeden. DC-motoren zijn het oudste type elektromotoren en ze worden veel gebruikt door elektronica-ontwikkelaars, zowel in thuislaboratoria als in scholen en externe laboratoria. Bijna alle printers, camera's, robots en CNC-machines in consumenten-, commerciële en industriële toepassingen gebruiken een gelijkstroommotor. AC-motoren daarentegen worden in veel huishoudelijke apparaten en gereedschappen gebruikt omdat ze rechtstreeks uit een stopcontact kunnen worden gevoed.Cytron's Maker Pi RP2040 Development Board is een geavanceerd systeem, gebaseerd op de RP2040-processor, en ontwikkeld met toepassingen als motorbesturing in het achterhoofd. Het board wordt geleverd met tweekanaals geborstelde DC-motor controller hardware, 4 servomotor poorten en 7 Grove-compatibele I/O-poorten, waardoor het een ideaal platform is voor mobiele roboticatoepassingen, voor robotarmbesturing, of bij elk ander type toepassing dat nauwkeurige besturing van motoren en actuatoren vereist.Het projectboek, geschreven door de bekende Elektor auteur Dogan Ibrahim, bevat meer dan 50 projecten met leds, een zoemer, een OLED-display, een ADC-converter, een ultrasone sensor, PWM en temperatuur- en vochtigheidsregeling. De belangrijkste hoofdstukken behandelen DC-motorbesturing, servomotorbesturing en stappenmotorbesturing, waarbij het Maker Pi RP2040 Dev Board op een creatieve en educatieve wijze wordt ingezet.Inbegrepen in de bundelCytron Maker Pi RP2040 Development BoardElectronica onderdelen1 kΩ weerstanden10 kΩ weerstand12 kΩ weerstand470 Ω weerstandLedRelais, 3 V / 10 ALDR, 10 kΩJumperdraden (male-male)BreadboardSensorenTMP36 (temperatuur)DHT11 (temperatuur en vochtigheid)Modules5 V stappenmotor met ULN2003 driverHC-SR04 (ultrasoon)SSD1306 (I²C OLED)KY-021 (reed switch)DC motor (geborsteld, miniatuur, 3 V, 12 krpm)SG90 (servomotoren)Project Book (191 pagina's)52 Projecten in het boekEenvoudige led projectenKnipperende ledKnipperend SOS signaalAlle leds AAN en UITBinair tellen met ledsRoterende ledsWillekeurig knipperende ledsRoterende leds met drukknop bedieningReactietimerReactiespel voor twee spelersDe ingebouwde NeoPixel leds gebruiken – toon verschillende kleurenDe ingebouwde NeoPixel leds gebruiken - laat beide NeoPixels willekeurig knipperenEenvoudige buzzer projectenDe toon van de centrale C spelenDe zoemer gebruiken als hoorbaar-geluid indicatorEen melodie spelen – Happy BirthdayFrequentie variërenOLED-schermen gebruikenTekst weergeven op OLEDVeel voorkomende vormen weergevenSeconden tellerBitmaps tekenenAnaloog naar digitaal converters gebruikenVoltmeterTemperatuurmetingAAN/UIT temperatuurregelaarAAN/UIT temperatuurregelaar met OLED-displayMeting van de intensiteit van het omgevingslichtOhmmeterPulse Width Modulation (PWM)Genereer een 1000 Hz PWM-golfvorm met 50% duty cycleDe helderheid van een led wijzigenAlarm geluid op de zoemerElektronisch orgelUltrasone sensor projectenUltrasone afstandsmetingUltrasone afstandsmeting met OLED-uitlezingHet meten van het waterniveau in een tankUltrasone achteruitrijhulp met zoemerTemperatuur en relatieve vochtigheidTemperatuur- en relatieve vochtigheidsmetingTemperatuur- en relatieve vochtigheidsmeting met OLEDProjecten met DC-motorbesturingDC-motor AAN/UIT regelingToerentalregeling voor DC-motor met twee snelhedenHet motortoerental variërenTwee DC-motoren gebruikenDe draairichting van de motor veranderenOp LDR gebaseerde motorbesturingMotorbesturing gebaseerd op magnetische reed switchDe snelheid van een DC-motor weergeven – met behulp van een rotary encoderDe snelheid van een DC-motor op OLED weergeven – met behulp van een rotary encoderTijdrespons van de motor met de encoderHet motortoerental meten en weergeven met behulp van interruptsProportional+Integral+Derivative (PID) regeling van het motortoerentalProjecten met servomotorbesturingServomotorbesturing – draai naar positie 0, 90 en 180 gradenGebruik van twee servomotoren – draai naar positie 0, 90 en 180 gradenUltrasone sonarProjecten met stappenmotorbesturingBasis stappenmotorbesturingThermometer met wijzerplaat

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Fluit ernaar en hij tjilpt naar u terug!Hoewel allerlei soorten vogels door veel mensen liefdevol worden verzorgd en bekeken hebben de meeste vogels helaas nog niet geleerd om ook met ons te communiceren. Deze volledig elektronische vogel zet een stap in de goede richting: als u ernaar fluit, dan tjilpt hij terug!Kenmerken Reageert op fluiten Instelbare vogelgeluiden (toon en lengte) Elektor Heritage circuit symbolen Uitgeprobeerd en getest door Elektor Labs Educatief en nerdy project Through-hole onderdelen Inbegrepen Printplaat Alle componenten Houten standaard Stuklijst Weerstanden R1, R2 = 2,2 kΩ R3, R4, R13 = 47 kΩ R5 = 4,7 kΩ R6 = 3,3 kΩ R7, R10, R11, R12, R17 = 100 kΩ R8, R19, R23 = 1 kΩ R9 = 1 MΩ R14, R15 = 10 kΩ R16, R18 = 470 kΩ R20 = 68 kΩ R21 = 10 MΩ R22 = 2,7 kΩ R24 = 22 Ω P1, P2 = 1 MΩ P3, P5 = 470 kΩ P4 = 100 kΩ Condensatoren C1, C2, C12 = 100 nF C3, C4 = 10 nF C5 = 22 μF, 16 V C6, C7, C11 = 10 μF, 16 V C8 = 2,2 μF, 100 V C9 = 1 μF, 50 V C10 = 2,2 nF C13 = 10 nF Halfgeleiders D1, D3, D4, D5, D6, D7, D8 = 1N4148 D2 = 3V3 zener diode T1, T2 = BC557B T3 = BC547B T4 = BC327-40 IC1 = TL084CN IC2 = 4093 Diversen BT1 = bedrade batterijclip voor 6LR61/PP3 LS1 = miniatuur luidspreker, 8Ω, 0,5W S1 = schakelaar, schuif, SPDT MIC1 = electret microfoon PCB 230153-1 v1.1

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Trek de hendel naar beneden voor de hoogste score!Deze Elektor Circuit Classic uit 1984 toont een speelse toepassing van logische IC's uit de CMOS 400x serie in combinatie met leds, destijds een zeer populaire combinatie. Het project imiteert een gokkast met ronddraaiende cijfers.Het spelVoordat het spel start dient u eerst het aantal rondes af te spreken. Speler 1 trekt de schakelhendel naar beneden zo lang als hij wenst en laat hem dan los. De leds tonen vervolgens de score die de som is van de 20-10-5-2-1 leds die oplichten. Mocht het Play Again! ledje gaan branden dan heeft speler 1 een extra 'gratis' ronde. Zo niet, dan is speler 2 aan de beurt. De spelers houden hun scores bij en de hoogste score wint.Kenmerken Leds geven de score aan Meerdere spelers en Play Again! Elektor Heritage circuit symbolen Uitgeprobeerd en getest door Elektor Labs Educatief en nerdy project Through-hole onderdelen Inbegrepen Printplaat Alle componenten Houten standaard Stuklijst Weerstanden (5%, 250 mW) R1, R2, R3, R4 = 100 kΩ R5, R6, R7, R8, R9, R10 = 1 kΩ Condensatoren C1 = 4,7 nF, 10 %, 50 V, 5 mm C2 = 4,7 μF, 10%, 63 V, axiale C3, C4 = 100 nF, 10 %, 50 V, keramiek X7R, 5 mm Halfgeleiders Led1 – Led6 = rood, 5 mm (T1 3/4) IC1 = 74HC4024 IC2 = 74HC132 Diversen S1 = schakelaar, tuimel, 21 mm hendel, SPDT, kortstondig S2 = schakelaar, tactiel, 24 V, 50 mA, 6x6 mm S3 = schakelaar, schuif, SPDT IC1, IC2 = IC-voetje, DIP14 BT1 = CR2032 PCB batterijhoudertje Tafel standaard PCB 230098-1 Niet inbegrepen: BT1 = CR2032 knoopcel batterij

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Learn to 3D Model & 3D Print with Tinkercad With this book and the complementary videos, you’ll be 3D printing in no time at all. This course is meant to have you make casings for electronic components but also goes into optimizing your print technique as well as adding a little flair to your 3D creations. The course is perfect for you if you just bought your (first) 3D printer and want to print your own designs as soon as possible while also being able to get more background information. You’ll get to know the workings of a 3D printer and what software to use to model your object, not forgetting to make it print perfectly. We’ll even use the magic of 3D printing to create things that appear impossible to make (this fast and simple) with any other rapid-prototyping technique. At the end of this course, it’ll be second nature for you to design an object for 3D printing and fine-tune your print-setting to get the perfect print! The book includes the following 7 video tutorials: Introduction Basic 3D modeling for 3D printing Modeling a casing Post-processing Pushing the limits Movable parts Snap fits

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Learn to 3D Model & 3D Print with Tinkercad With this book and the complementary videos, you’ll be 3D printing in no time at all. This course is meant to have you make casings for electronic components but also goes into optimizing your print technique as well as adding a little flair to your 3D creations. The course is perfect for you if you just bought your (first) 3D printer and want to print your own designs as soon as possible while also being able to get more background information. You’ll get to know the workings of a 3D printer and what software to use to model your object, not forgetting to make it print perfectly. We’ll even use the magic of 3D printing to create things that appear impossible to make (this fast and simple) with any other rapid-prototyping technique. At the end of this course, it’ll be second nature for you to design an object for 3D printing and fine-tune your print-setting to get the perfect print! The book includes the following 7 video tutorials: Introduction Basic 3D modeling for 3D printing Modeling a casing Post-processing Pushing the limits Movable parts Snap fits

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Nobody has any doubt that valve amplifiers produce a remarkably beautiful sound. They have a lively, deep, clear, and expressive sound, and dynamically they do not appear to have any limitations. The author investigates, in a systematic theoretical approach, the reasons for these beautiful properties. He develops new models for power valves and transformers, thus enabling the designer to determine the properties of the amplifier during the design process. Mathematical models for the coupling of power valve(s) and output transformer are provided. These will generate new insights in a special kind of distortion: the dynamic damping factor distortion (DDFD). With mathematical models in the complex domain, especially the properties at the limits of our hearing range (from 20 Hz to 20 kHz) are investigated and the minimal stability criteria for the amplifier are formulated. The often-applied negative feedback in amplifiers is extensively modelled and discussed in relation to our hearing appreciating. And after all this theory a fine selection of special amplifiers is presented and discussed. You will notice in this book that the author not only writes about amplifier technique, but tells about the way the development of valve amplifiers can have an influence on your daily life; even the usefulness of patents is discussed. Summarizing: new theories and solutions for perfect audio with valve amplifiers. Not only the professional and the DIY-er but everyone who wants to understand valve amplifiers will read this book with much pleasure.

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This book covers a series of exciting and fun projects for the Arduino, such as a silent alarm, people sensor, light sensor, motor control, internet and wireless control (using a radio link). Contrary to many free projects on the internet all projects in this book have been extensively tested and are guaranteed to work! You can use it as a projects book and build more than 45 projects for your own use. The clear explanations, schematics, and pictures of each project make this a fun activity. The pictures are taken of a working project, so you know for sure that they are correct. You can combine the projects in this book to make your own projects. To facilitate this, clear explanations are provided on how the project works and why it has been designed the way it has That way you will learn a lot about the project and the parts used, knowledge that you can use in your own projects. Apart from that, the book can be used as a reference guide. Using the index, you can easily locate projects that serve as examples for the C++ commands and Arduino functionality. Even after you’ve built all the projects in this book, it will still be a valuable reference guide to keep next to your PC.

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Een op de Raspberry Pi Pico gebaseerde Eye Catcher Een standaard zandklok laat meestal slechts zien hoe de tijd verstrijkt. Deze door een Raspberry Pi Pico aangestuurde zandklok toont daarentegen de exacte tijd door de vier cijfers voor uren en minuten in een zandlaag te "graveren". Na een vooraf ingestelde periode wordt het zand door twee trilmotoren vlak getrild en begint alles weer van voren af aan. Het hart van de zandklok wordt gevormd door twee servomotoren, die via een pantograafmechanisme een schrijfpen aandrijven. Een derde servomotor tilt deze pen op en neer. Het zandbakje is voorzien van twee trilmotoren om het zand weer vlak te trillen. Het elektronische deel van de zandklok bestaat uit een Raspberry Pi Pico en een RTC/driverbord met een real-time klok, plus drivercircuits voor de servomotoren. Een gedetailleerde bouwhandleiding is beschikbaar via download. Kenmerken Afmetingen: 135 x 110 x 80 mm Bouwtijd: ca. 1,5 tot 2 uur Inbegrepen 3x Voorgesneden acrylaatplaten met alle mechanische onderdelen 3x Mini servomotoren 2x Trilmotoren 1x Raspberry Pi Pico 1x RTC/driverkaart met geassembleerde onderdelen Moeren, boutjes, afstandhouders en draden voor de montage Fijnkorrelig wit zand

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From Detector to Software Defined RadioRadio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics.For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here.But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios.This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.

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From Detector to Software Defined RadioRadio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics.For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here.But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios.This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.

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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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Easy and Affordable Digital Signal Processing The 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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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member so far, and this workhorse has been with us for many years. Recently, the new Arduino Uno R4 was released, based on a 48-MHz, 32-bit Cortex-M4 processor with a huge amount of SRAM and flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The new board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules, which are available as a kit from Elektor. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4×4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Programming and Projects for the Minima and WiFi Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member so far, and this workhorse has been with us for many years. Recently, the new Arduino Uno R4 was released, based on a 48-MHz, 32-bit Cortex-M4 processor with a huge amount of SRAM and flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The new board also supports the CAN Bus with an interface. Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules, which are available as a kit from Elektor. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate. The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including LEDs 7-segment displays (using timer interrupts) LCDs Sensors RFID Reader 4×4 Keypad Real-time clock (RTC) Joystick 8×8 LED matrix Motors DAC (Digital-to-analog converter) LED matrix WiFi connectivity Serial UART CAN bus Infrared controller and receiver Simulators … all in creative and educational ways with the project operation and associated software explained in great detail.

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Mastering the Language and the Development PlatformMany people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs.In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming.In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises.Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them.The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Mastering the Language and the Development PlatformMany people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs.In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming.In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises.Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them.The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Ontwikkel audio-, DSP- en motorbesturingsprojecten met Arm Cortex-M7 Het hart van de MIMXRT1010 Development Kit van NXP Semiconductors wordt gevormd door de i.MX RT1010 Crossover MCU met een Arm Cortex-M7 core. Deze processor kan DSP-toepassingen uitvoeren, die veel vermogen en geheugen vragen. Met de populaire MCUXpresso IDE kan men software ontwikkelen voor de dev kit. Tevens wordt een krachtige SDK (Software Development Kit) wordt meegeleverd om sneller programma's te ontwikkelen. De dev kit biedt zeer goede connectiviteit via de audio CODECs, 4-weg hoofdtelefoonaansluiting, externe speaker-aansluiting, microfoon en de Arduino-interface. De dev kit heeft verschillende ingebouwde debug-probes, zodat je je programma's kunt debuggen door rechtstreeks met de MCU te praten. Met behulp van de debugger kun je een programma in één stap doorlopen, onderbrekingspunten invoegen, variabelen bekijken en wijzigen, enzovoort. Met behulp van de MCUXpresso IDE en de SDK worden in het boek veel geteste projecten ontwikkeld met behulp van diverse onderdelen, modules en technologieën, zoals: LED's en LCD's ADC I²C-projecten SPI-projecten UART-projecten Motorbesturing Audio en digitale signaal processor (DSP) Deze bundel bevat: Getting started with the NXP i.MX RT1010 Development Kit Boek (normale prijs: € 34,95) NXP i.MX RT1010 Kit Development Kit Hardware (normale prijs: € 49,95)

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Practical Introduction to 3D Modeling from Enclosure to Front PanelEmbedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination.Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies.In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos.Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly.Soon you will definitely not want to do without FreeCAD!

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Practical Introduction to 3D Modeling from Enclosure to Front PanelEmbedding a vintage component, creating a professional looking home for a circuit board, or even designing a complex apparatus complete with a chassis – these and many other challenges turn into a stimulating pleasure with FreeCAD. Once you have internalized the basic processes, there are virtually no limits to your imagination.Starting to use a new software is never straightforward – especially with a tool as versatile as FreeCAD. Manageable, but at the same time easily usable individual components provide the starting point in this book. Putting these components together later results in assemblies.In the FreeCAD universe, a workable trajectory is demonstrated. The described procedure is illustrative so the examples are easily applied to custom tasks. The devices were made by the author and illustrated with photos.Creating a 3D design is requiring some effort but the initial investment pays off soon. Besides the impressive spatial representation of the projects, the extracted drawings yield a solid base for documentation and production. Extended FreeCAD capabilities like the unfolding of sheet metal parts enormously add to efficiency and pushes models forward into practical assembly.Soon you will definitely not want to do without FreeCAD!

Lees meer minder