3 in 1 Heatsink Set Aluminium voor Raspberry Pi 4 en 5 Inhoud 1x 14x14x6 mm 1x 15x10x5 mm 1x 8,8x8,8x5 mm

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Deze robuuste, passieve aluminium koelbehuizing is speciaal gemaakt voor de Raspberry Pi 5 en biedt een strak ontwerp dat zowel duurzaamheid als effectieve warmteafvoer garandeert. De behuizing is exclusief compatibel met de Raspberry Pi 5 en biedt een passieve koeloplossing, waardoor er geen ventilator meer nodig is en de warmte toch efficiënt wordt beheerd. Kenmerken Hoogwaardige aluminium constructie: Deze behuizing is gemaakt van hoogwaardig aluminium en is gebouwd om lang mee te gaan en bestand te zijn tegen regelmatig gebruik. Geoptimaliseerde warmteafvoer: Het passieve koelingsontwerp maakt gebruik van de aluminium structuur om uw Raspberry Pi 5 koel te houden zonder dat er een ventilator nodig is. Volledige poorttoegankelijkheid: Elke poort op de Raspberry Pi 5 is gemakkelijk toegankelijk, van de microSD-kaartsleuf tot USB-, micro-HDMI- en GPIO-poorten. GPIO-kabelondersteuning: Een gereserveerde interface voor de GPIO-kabel zorgt ervoor dat u deze belangrijke functie kunt blijven gebruiken zonder dat u de behuizing hoeft te verwijderen. Handige aan/uit-schakelaar: De case heeft een geïntegreerde aan/uit-schakelaar waarmee u uw apparaat aan en uit kunt zetten.

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De HT-M00 is een tweekanaals gateway die speciaal is ontworpen voor LoRa-toepassingen voor slimme gezinnen die werken met minder dan 30 LoRa-nodes. De gateway is gebouwd rond twee SX1276-chips die worden aangestuurd door ESP32. Om monitoring van de 125 kHz SF7~SF12-spreidingsfactor mogelijk te maken, is een softwaremixer ontwikkeld, die gewoonlijk een basisbandsimulatieprogramma wordt genoemd. De softwaremixer is een cruciaal onderdeel waardoor de HT-M00-gateway met hoge efficiëntie kan werken. Het is ontworpen om basisbandsignalen te simuleren, die vervolgens worden gemengd met de radiofrequentiesignalen om de gewenste uitvoer te produceren. De softwaremixer is met grote zorg en precisie ontwikkeld en heeft strenge tests ondergaan om ervoor te zorgen dat hij nauwkeurige en betrouwbare resultaten kan leveren. Kenmerken ESP32 + SX1276 Emuleert LoRa-demodulatoren Automatische adaptieve spreadspectrumfactor, SF7 tot SF12 voor elk kanaal is optioneel Maximale output: 18 ±1dBm Ondersteuning voor LoRaWAN klasse A, klasse C-protocol Specificaties MCU ESP32-D0WDQ6 LoRa-chipset SX1276 LoRa-band 863~870 MHz Voedingsspanning 5 V Ontvangstgevoeligheid -110 dBm bij 300 bps Interface USB-C Max. TX-vermogen 17dB ±1dB Bedrijfstemperatuur −20~70°C Afmetingen 30 x 76 x 14 mm Inbegrepen 1x HT-M00 2-kanaals LoRa Gateway 1x Muurbeugel 1x USB-C-kabel Downloads Manual Software Documentation

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Van de makers van MagPi, het officiële Raspberry Pi-magazine Ga aan de slag met Raspberry Pi 5, de nieuwste en beste in de Raspberry Pi-microcomputerlijn; leer programmeren en creeren met deze fantastische computer. Daarnaast zijn er nog genoeg dingen die je kunt doen met Raspberry Pi 4, Raspberry Pi Zero 2 W en Raspberry Pi Pico W in dit handboek. Met de nieuwste recensies, tutorials, projectpresentaties, handleidingen en nog veel meer is dit je ultieme bron voor Raspberry Pi! 228 pagina’s Raspberry Pi Alles wat je moet weten over de Raspberry Pi 5 Snelle en praktische gids voor elke Raspberry Pi Beleef serieus plezier met elektronica en de Pico W Inspirerende projecten voor uw volgende bouwidee Leer μPython door een “handheld” te bouwen Aan de slag met de Raspberry Pi Camera-module Kunstmatige Intelligentie; bouw je eigen GPT Chatbot

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Van de makers van MagPi, het officiële Raspberry Pi-magazine Ga aan de slag met Raspberry Pi 5, de nieuwste en beste in de Raspberry Pi-microcomputerlijn; leer programmeren en creeren met deze fantastische computer. Daarnaast zijn er nog genoeg dingen die je kunt doen met Raspberry Pi 4, Raspberry Pi Zero 2 W en Raspberry Pi Pico W in dit handboek. Met de nieuwste recensies, tutorials, projectpresentaties, handleidingen en nog veel meer is dit je ultieme bron voor Raspberry Pi! 228 pagina’s Raspberry Pi Alles wat je moet weten over de Raspberry Pi 5 Snelle en praktische gids voor elke Raspberry Pi Beleef serieus plezier met elektronica en de Pico W Inspirerende projecten voor uw volgende bouwidee Leer μPython door een “handheld” te bouwen Aan de slag met de Raspberry Pi Camera-module Kunstmatige Intelligentie; bouw je eigen GPT Chatbot

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Niemand twijfelt er aan dat buizenversterkers een opmerkelijk mooi geluid produceren. Ze klinken levendig, diep en doortekend; het klankbeeld is zeer aangenaam en dynamisch schijnen ze nagenoeg geen beperkingen te kennen.Via een systematisch theoretisch onderzoek gaat de auteur na waardoor deze fraaie eigenschappen ontstaan. Hij ontwikkelt nieuwe modellen voor versterkerbuizen en transformatoren, waardoor het mogelijk wordt om op voorhand, tijdens het ontwerp, al te bepalen wat de eigenschappen van de buizenversterker worden. De koppeling tussen eindbuizen en de uitgangstransformator wordt diepgaand gemodelleerd. Daarbij ontstaan nieuwe inzichten in een uitzonderlijk soort vervorming: de dynamische dempingsfactor vervorming (DDFD). Via rekenmodellen in het complexe domein worden vooral de eigenschappen in de grenzen van het hoorbare gebied (tussen 20 Hz en 20 kHz) onderzocht en ontstaan stabiliteitsvoorwaarden waar de versterker minstens aan moet voldoen. In versterkers wordt vaak tegenkoppeling toegepast, die uitgebreid wordt gemodelleerd en waarvan de gehoorsmatige gevolgen diepgaand worden besproken.Vervolgens wordt een fraaie selectie van bijzondere buizenversterkers besproken. Kenmerkend in dit boek is dat de auteur niet alleen technisch schrijft, maar verhalend laat zien dat het ontwikkelen van buizenversterkers ook ingrijpt in je dagelijkse leven; zelfs het nut van patenten wordt besproken. Samenvattend: nieuwe theorieën en oplossingen voor een perfecte audiokwaliteit met buizenversterkers. Zowel de zelfbouwer als diegene die kennis en inzicht wil verwerven zal dit boek met plezier ter hand nemen.

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A Toolbox for Audio Lovers and Engineers Without any ambition to reach scientific levels, this book aims to be a toolbox for both audio lovers and high-end equipment designers. The elementary theory presented is the bare minimum for readers to grasp the operation and practical use of electrical, electromagnetic, physics, and electronic operations available in the designers’ toolbox. Each tool is explained in a minimum of words and theory without needless coverage of underlying equations or figures. The book chapters guide you through the process of designing quality amplifiers with vacuum tubes, from the very beginning, considering both technical and subjective requirements – in theory and practice. The book is a compilation of the author’s notes used in his professional and educational career but was nevertheless primarily written as a result of true love for the audiophile hobby.

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A Toolbox for Audio Lovers and Engineers Without any ambition to reach scientific levels, this book aims to be a toolbox for both audio lovers and high-end equipment designers. The elementary theory presented is the bare minimum for readers to grasp the operation and practical use of electrical, electromagnetic, physics, and electronic operations available in the designers’ toolbox. Each tool is explained in a minimum of words and theory without needless coverage of underlying equations or figures. The book chapters guide you through the process of designing quality amplifiers with vacuum tubes, from the very beginning, considering both technical and subjective requirements – in theory and practice. The book is a compilation of the author’s notes used in his professional and educational career but was nevertheless primarily written as a result of true love for the audiophile hobby.

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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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The QAV250 Kit is the perfect way to get started developing on either PX4 or Ardupilot. It pairs a carbon fiber 250 racing frame and essential electronics with Pixhawk 6C mini autopilot. The kit is easy to assemble. No soldering needed. Specifications Micro Power Module (PM06 v2) Motors: 2207 KV1950 Wheelbase: 250 mm Dimensions: 198 x 235 x 70 mm Weight: 347 g Included Carbon fiber 250 airframe with hardware Micro Power Module (PM06 v2) Motors: 2207 KV1950 5" Plastic Props Fully assembled Power Management Board with ESCs (BLHeli S ESC 20A) Battery Straps Note: LiPo battery is not included.

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The X500 V2 ARF Kit is an affordable, lightweight, and robust carbon fiber professional drone kit that is easy to assemble (less than 15 minutes). It comes with the X500 V2 Frame Kit and motors, ESCs, power distribution boards and propellers preinstalled. It is perfectly compatible with various flight controllers such as the Holybro Pixhawk series, Durandal, Pix32 V5, etc. There are numerous improvements compared the previous model. Specifications Wheelbase: 500 mm Motor mount pattern: 16x16 mm Frame body: 144x144 mm, 2 mm thick Landing gear height: 215 mm Space between top and bottom plates: 28 mm Weight: 610 g Flight time: ~18 minutes hover with no additional payload. Tested with 5000 mAh battery. Payload: 1500 g (without battery, 70% throttle) Battery recommendation: 4S 3000-5000 mAh 20C+ with XT60 Lipo battery (not Included) Included X500 V2 Frame Kit With Preinstalled Items: 4x Motors: Holybro 2216 KV920 Motor (4 pcs) with XT30 Plug 4x ESCs (BLHeli S ESC 20A) 6x 1045 Propellers Power Distribution Board – XT60 plug for battery & XT30 plug for ESCs & peripherals Note: Depth camera mount is sold separately.

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Affordable solutions with the ESP8266 and 3D printing If you are looking for a small yet powerful IoT device, you are likely to come across the ESP8266 and compatible products on the market today. One of these, the Wemos/Lolin D1 Mini Pro board strikes a remarkable balance between cost and performance. A small and very affordable prototype board, the D1 Mini Pro stands out with its WiFi functionality and a 16-Mbytes flash memory for easy creation of a flash file system. In addition, there are sufficient input and output pins (only one analog input though) to support PWM, I²C, and One-Wire systems to mention but a few. The book describes the operation, modding, construction, and programming of home appliances including a colorful smart home accessory, a refrigerator/greenhouse controller, an AC powerline monitor, a door lock monitor, and an IKEA Trådfri controller. As a benefit, all firmware developed for these DIY, "IoT-ized" devices can be updated over-the-air (OTA). For most of the designs in the book, a small printed circuit board (PCB) and an enclosure are presented so readers can have a finished and attractive-looking product. Readers having – or with access to! – a 3D printer can "print" the suggested enclosures at home or in a shop. Some of the constructions benefit from a Raspberry Pi configured as a gateway or cms server. This is also described in detail with all the necessary configuring. You don’t need to be an expert but the prerequisites to successful replication of the projects include basic skills with PC software including the ability to surf the Internet. In terms of hardware, you should be comfortable with soldering and generally assembling the PCBs presented in the book. All custom software written for the IoT devices, the PCB layouts, and 3D print files described in the book are available for free downloading.

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Projecten met Arduino, ESPHome, Home Assistant en Raspberry Pi & Co. Dit e-book bevat verschillende voorbeeldprojecten, te beginnen met een inleiding tot elektronica. Het legt ook uit hoe je Home Assistant installeert op een Raspberry Pi, hoe je binnenklimaatsensoren gebruikt voor temperatuur en vochtigheid, hoe je het MQTT-protocol en andere interfaces implementeert, en hoe je ESPHome gebruikt om sensoren en actuatoren te integreren in Home Assistant. Talrijke video tutorials vullen het boek aan. The book begins with an introduction to electrical engineering. You will learn the basics of voltage, current, resistors, diodes and transistors. Arduino and microcontrollers A complete section is dedicated to the Arduino Uno. You will get to know the structure, write your first programs and work on practical examples. Home Assistant and automation You will learn how to set up Home Assistant on a Raspberry Pi and how to use automations, scenes and devices. In addition, Zigbee, MQTT and ESP-NOW – important technologies for home automation – will be discussed. ESP8266, ESP32 and ESP32-CAM The popular ESP microcontrollers are covered in detail. A theoretical introduction is followed by practical projects that show you how to get the most out of these devices. Sensors and actuators The book explains the functionality and application of numerous sensors such as temperature and humidity sensors, motion detectors and RFID readers. For actuators, stepper motors, e-ink displays, servo motors and much more are covered. There are practical application examples for all devices. ESPHome This chapter shows you how to integrate sensors and actuators into Home Assistant without any programming effort. You will be guided step by step through the setup with ESPHome. LEDs and lighting technology In this chapter, you will learn about different types of LEDs and how they can be used. The basics of lighting technology are also explained. Node-RED A whole chapter is dedicated to Node-RED. You will learn the basics of this powerful tool and be guided step by step through its setup and use. Integrated Circuits (ICs) In electronics, there are numerous ICs that make our lives easier. You will get to know the most important ones and apply your knowledge in practical projects. Professional programming Advanced topics such as the correct use of buttons, the use of interrupts and the use of an NTP server for time synchronisation are covered in detail in this chapter. Downloads GitHub

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Using the RFID Starter Kit An Arduino board has now become ‘the’ basic component in the maker community. No longer is an introduction to the world of microcontrollers the preserve of the expert. When it comes to expanding the capabilities of the basic Arduino board however, the developer is still largely on his own. If you really want to build some innovative projects it’s often necessary to get down to component level. This can present many beginners with major problems. That is exactly where this book begins. This book explains how a wide variety of practical projects can be built using items supplied in a single kit together with the Arduino board. This kit, called the 'RFID Starter Kit for Arduino' (SKU 17240) is not just limited to RFID applications but contains more than 30 components, devices and modules covering all areas of modern electronics. In addition to more simple components such as LEDs and resistors there are also complex and sophisticated modules that employ the latest technology such as: A humidity sensor A multicolor LED A large LED matrix with 64 points of light A 4-character 7-segment LED display An infra red remote-controller unit A complete LC-display module A servo A stepper motor and controller module A complete RFID reader module and security tag On top of that you will get to build precise digital thermometers, hygrometers, exposure meters and various alarm systems. There are also practical devices and applications such as a fully automatic rain sensor, a sound-controlled remote control system, a multifunctional weather station and so much more. All of the projects described can be built using the components supplied in the Elektor kit.

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Deze 10 cm lange lijmsticks zijn compatibel met alle standaard lijmpistolen met een diameter van 7,2 mm.

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From Rubbing Amber to Swiping Glass "The story of electricity, told one connection at a time."Why does rubbing amber attract dust? How did we go from that curious effect to a world where screens respond to a single touch? And how did we get from mysterious sparks to tiny chips packed with billions of transistors? For centuries, electricity puzzled and fascinated those who encountered its curious effects—long before it even had a name. From the earliest observations of static charge to the complex electronics that shape our lives today, this book traces the gradual, and often surprising, story of how humanity came to understand and harness this powerful force. This book offers an engaging and accessible account of the people, ideas, and inventions that transformed electricity from a scientific curiosity into the foundation of our digital age. Along the way, you’ll meet a host of inquisitive minds—some famous, others less so—whose persistence and creativity helped unravel the mysteries of the natural world and gave rise to the technologies we now take for granted. Covering everything from Leyden jars and batteries to transistors, microcontrollers and the internet, this book presents a clear and enjoyable overview of electronics and its relatively short, yet rich, history. Whether you have a technical background or simply a curiosity about how things work, From Rubbing Amber to Swiping Glass offers a thoughtful look at how far we’ve come—and a gentle nudge to wonder what might come next.

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De ICL8038-signaalgenerator levert veelzijdige golfvormen, waaronder sinus, driehoek, vierkant en voorwaartse/achterwaartse zaagtand, waardoor hij geschikt is voor een breed scala aan toepassingen. Aangedreven door de ICL8038-chip en snelle operationele versterkers, zorgt het voor uitzonderlijke precisie en signaalstabiliteit. Met een frequentiebereik van 5 Hz tot 400 kHz ondersteunt het toepassingen van audio- tot radiofrequenties. De instelbare werkcyclus, variërend van 2% tot 95%, maakt nauwkeurige aanpassing van de golfvorm mogelijk om aan verschillende behoeften te voldoen. De DIY-kit is beginnersvriendelijk en bevat componenten met doorlopende gaten voor eenvoudige montage. Het bevat alle benodigde onderdelen, een acrylomhulsel en een gedetailleerde handleiding, die alles biedt wat nodig is om de signaalgenerator efficiënt te bouwen en te gebruiken. Specificaties Frequentiebereik 5 Hz~400 KHz (instelbaar) Voedingsspanning 12 V~15 V Bereik van de werkcyclus 2%~95% (instelbaar) Sinusgolf met lage vervorming 1% Lage temperatuurafwijking 50 ppm/°C Uitvoer van driehoekige golflineariteit 0,1% DC-biasbereik −7,5 V~7,5 V Uitgangsamplitudebereik 0,1 V~11 VPP (werkspanning 12 V) Afmetingen 89 x 60 x 35 mm Gewicht 81 g Inbegrepen PCB incl. alle benodigde componenten Acrylbehuizing Manual

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This is another great IIC/I²C/TWI/SPI Serial Interface. As the pin resources of controller is limited, your project may be not able to use normal LCD shield after connected with a certain quantity of sensors or SD card. However, with this I²C interface module, you will be able to realize data display via only 2 wires. If you already has I²C devices in your project, this LCD module actually cost no more resources at all. It is fantastic for based project. I²C Address: 0X20~0X27 (the original address is 0X20,you can change it yourself) The backlight and contrast is adjusted by potentiometer Comes with 2 IIC interface, which can be connected by Dupont Line or IIC dedicated cable I²C Address: 0x27 (I²C Address: 0X20~0X27 (the original address is 0X27,you can change it yourself) Specifications Compatible for 1602 LCD Supply voltage: 5 V Weight: 5 g Size: 5.5 x 2.3 x 1.4 cm

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The Challenger RP2040 LoRa is an Arduino/CircuitPython compatible Adafruit Feather format microcontroller board based on the Raspberry Pi Pico (RP2040) chip.The transceiver features a LoRa long range modem that provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption.LoRaThe integrated module LoRa module (RFM95W) can achieve a sensitivity of over -148 dBm utilizing a low cost crystal and bill of materials. The high sensitivity combined with the integrated +20 dBm power amplifier yields industry leading link budget making it optimal for any application requiring range or robustness. LoRa also provides significant advantages in both blocking and selectivity over conventional modulation techniques, solving the traditional design compromise between range, interference immunity and energy consumption.The RFM95W is connected to the RP2040 via SPI channel 1 and a few GPIO’s that is required for signaling. A U.FL connector is used to attach your LoRa antenna to the board. 168 dB maximum link budget +20 dBm – 100 mW constant RF output vs. V supply +14 dBm high efficiency PA Programmable bit rate up to 300 kbps High sensitivity: down to -148 dBm Bullet-proof front end: IIP3 = -12.5 dBm Excellent blocking immunity Low RX current of 10.3 mA, 200 nA register retention Fully integrated synthesizer with a resolution of 61 Hz FSK, GFSK, MSK, GMSK, LoRaTM and OOK modulation Built-in bit synchronizer for clock recovery Preamble detection 127 dB Dynamic Range RSSI Automatic RF Sense and CAD with ultra-fast AFC Packet engine up to 256 bytes with CRC Specifications Microcontroller RP2040 from Raspberry Pi (133 MHz dual-core Cortex-M0) SPI Two SPI channels configured (second SPI connected to RFM95W) I²C One I²C channel configured UART One UART channel configured Analog inputs 4 analog input channels Radio module RFM95W from Hope RF Flash memory 8 MB, 133 MHz SRAM memory 264 KB (divided into 6 banks) USB 2.0 controller Up to 12 MBit/s full speed (integrated USB 1.1 PHY) JST Battery connector 2.0 mm pitch On board LiPo charger 450 mA standard charge current Dimensions 51 x 23 x 3,2 mm Weight 9 g Downloads Datasheet Design files

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The Challenger RP2040 NFC is a small embedded computer, equipped with an advanced on-board NFC controller (NXP PN7150), in the popular Adafruit Feather form factor. It is based on an RP2040 microcontroller chip from the Raspberry Pi Foundation which is a dual-core Cortex-M0 that can run on a clock up to 133 MHz. NFC The PN7150 is a full featured NFC controller solution with integrated firmware and NCI interface designed for contactless communication at 13.56 MHz. It is fully compatible with NFC forum requirements and is greatly designed based on learnings from previous NXP NFC device generation. It is the ideal solution for rapidly integrating NFC technology in any application, especially small embedded systems reducing Bill of Material (BOM). The integrated design with full NFC forum compliancy gives the user all the following features: Embedded NFC firmware providing all NFC protocols as pre-integrated feature. Direct connection to the main host or microcontroller, by I²C-bus physical and NCI protocol. Ultra-low power consumption in polling loop mode. Highly efficient integrated power management unit (PMU) allowing direct supply from a battery. Specifications Microcontroller RP2040 from Raspberry Pi (133 MHz dual-core Cortex-M0) SPI One SPI channels configured I²C Two I²C channel configured (dedicated I²C for the PN7150) UART One UART channel configured Analog inputs 4 analog input channels NFC module PN7150 from NXP Flash memory 8 MB, 133 MHz SRAM memory 264 KB (divided into 6 banks) USB 2.0 controller Up to 12 MBit/s full speed (integrated USB 1.1 PHY) JST Battery connector 2.0 mm pitch On board LiPo charger 450 mA standard charge current Dimensions 51 x 23 x 3,2 mm Weight 9 g Note: Antenna is not included. Downloads Datasheet Quick start example

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