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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v1.0A Battery-Monitoring System for UPS and Energy Storage Applications Solar Charge Controller with MPPT (1)Basic Principles of a Solar Controller for Stand-Alone Systems B-Field Integration Magnetometer With Home-Made Sensors Precise or Accurate?Your Instruments Need to Be Both! AD7124 A Precision ADC in PracticeFeatures for Sensor Signal Conditioning PID Control ToolOptimize Your Parameters Easily embedded world 2025 Starting Out in Electronics……Continues with Tone Control Academy Pro BoxBook + Online Course + Hardware Milliohmmeter AdapterUses the Precision of Your Multimeter The Next Leap in SemiconductorsOnward Toward 1.4 nm Through-Hole Technology ConnectorsThe Best of Two Worlds: THR Frequency CounterPortable and Auto-Calibrating Via GPS Analog MetersPeculiar Parts, the Series Stand-Alone Crystal TesterHow Accurate Is Your Clock Source? Low-Cost I²C TesterConnect I²C Devices Directly to Your PC From Life’s ExperienceWho Doesn’t Honor the Small Things? 2025: An AI OdysseyThe Transformative Impact on Software Development Err-lectronicsCorrections, Updates, and Readers’ Letters Raspberry Pi Standalone MIDI Synthesizer (2)Enhancing Our Setup with Intelligence Nortonized Wien Bridge OscillatorSmall Changes Yield Significant Improvements Putting a $0.10 Controller to the TestThe CH32V003 RISC-V Microcontroller and MounRiver Studio in Practice An FPGA-Based Audio Player with Equalizer (2)Adding Volume Control, Advanced Mixing, and a Web Interface

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LoRa with the Raspberry Pi PicoFun with MicroPython What Is RISC-V?And Why the Industry Is So Excited About a New Processing Core! Elektor @ 60Circuits of Summer Past Versatile Power Supply for BreadboardsPositive and Negative Voltages Out of 5 V from USB Raspberry Pi Pico EssentialsSample Chapter: Wi-Fi with the Raspberry Pi Pico Magnetic Levitation the Easy Way Hands On the Parallax Propeller 2Part 3: Smart Pins and Serial Data (UART) Nucleo Boards Programming with the STM32CubeIDESample Chapter: FreeRTOS for the STM32 MCU Developer's ZoneTips & Tricks, Best Practices and Other Useful Information Miniware DT71 Digital Tweezers Wearable Wi-Fi Gadget: ESPHome Does the Job Again Starting out in ElectronicsEasier Than Imagined! This Concludes the Subject of “Capacitors” Simple Sketches Using the Qwiic Ecosystem Java on the Raspberry Pi (Part 2)Controlling GPIOs with a Spring REST Service Raspberry Pi Compute Module 4A Raspberry Pi for Industry Portable, Stand-Alone Air Quality Display for 2.5 µm ParticlesKeep(s) an Eye on Your Health From Life’s ExperienceThe Future Was Better in the Past MicroPython for the ESP32 and FriendsPart 1: Installation and Our First Programs Charge-Coupled Devices in OscilloscopesPeculiar Parts, the series ESD – The Invisible DestroyerComponents Trashed by a Bolt from the Blue Solar Power for Mowing RobotsEcological, Inexpensive, Simple! Europe’s Efforts to Tame Big Tech HexadokuThe Original Elektorized Sudoku

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A Fast-Lane Ride From Concept to Project The core of the book explains the use of the Raspberry Pi Zero 2 W running the Python programming language, always in simple terms and backed by many tested and working example projects. On part of the reader, familiarity with the Python programming language and some experience with one of the Raspberry Pi computers will prove helpful. Although previous electronics experience is not required, some knowledge of basic electronics is beneficial, especially when venturing out to modify the projects for your own applications. Over 30 tested and working hardware-based projects are given in the book, covering the use of Wi-Fi, communication with smartphones and with a Raspberry Pi Pico W computer. Additionally, there are Bluetooth projects including elementary communication with smartphones and with the popular Arduino Uno. Both Wi-Fi and Bluetooth are key features of the Raspberry Pi Zero 2 W. Some of the topics covered in the book are: Raspberry Pi OS installation on an SD card Python program creation and execution on the Raspberry Pi Zero 2 W Software-only examples of Python running on the Raspberry Pi Zero 2 W Hardware-based projects including LCD and Sense HAT interfacing UDP and TCP Wi-Fi based projects for smartphone communication UDP-based project for Raspberry Pi Pico W communication Flask-based webserver project Cloud storage of captured temperature, humidity, and pressure data TFT projects Node-RED projects Interfacing to Alexa MQTT projects Bluetooth-based projects for smartphone and Arduino Uno communications

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Internet of Things (DE) | E-book

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The Arduino Uno is an open-source microcontroller development system encompassing hardware, an Integrated Development Environment (IDE), and a vast number of libraries. It is supported by an enormous community of programmers, electronic engineers, enthusiasts, and academics. The libraries in particular really smooth Arduino programming and reduce programming time. What’s more, the libraries greatly facilitate testing your programs since most come fully tested and working. The Raspberry Pi 4 can be used in many applications such as audio and video media devices. It also works in industrial controllers, robotics, games, and in many domestic and commercial applications. The Raspberry Pi 4 also offers Wi-Fi and Bluetooth capability which makes it great for remote and Internet-based control and monitoring applications. This book is about using both the Raspberry Pi 4 and the Arduino Uno in PID-based automatic control applications. The book starts with basic theory of the control systems and feedback control. Working and tested projects are given for controlling real-life systems using PID controllers. The open-loop step time response, tuning the PID parameters, and the closed-loop time response of the developed systems are discussed together with the block diagrams, circuit diagrams, PID controller algorithms, and the full program listings for both the Raspberry Pi and the Arduino Uno. The projects given in the book aim to teach the theory and applications of PID controllers and can be modified easily as desired for other applications. The projects given for the Raspberry Pi 4 should work with all other models of Raspberry Pi family. The book covers the following topics: Open-loop and closed-loop control systems Analog and digital sensors Transfer functions and continuous-time systems First-order and second-order system time responses Discrete-time digital systems Continuous-time PID controllers Discrete-time PID controllers ON-OFF temperature control with Raspberry Pi and Arduino Uno PID-based temperature control with Raspberry Pi and Arduino Uno PID-based DC motor control with Raspberry Pi and Arduino Uno PID-based water level control with Raspberry Pi and Arduino Uno PID-based LED-LDR brightness control with Raspberry Pi and Arduino Uno

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De FNIRSI GC-03 is een multifunctionele stralingsdetector, ontworpen voor professionele metingen van nucleaire straling in alledaagse omgevingen zoals thuis, op kantoor, in de auto en buitenshuis. Het apparaat is voorzien van een 2,4-inch high-definition kleurendisplay en maakt real-time monitoring mogelijk van zowel nucleaire straling als de sterkte van elektrische en magnetische velden. Voor extra veiligheid beschikt het toestel over drie alarmmodi: een geluidssignaal, trillingen en een visuele lichtwaarschuwing. Kenmerken 3-in-1 detectie: Meet elektrische, magnetische en nucleaire straling met één enkel apparaat. Uiterst nauwkeurige GM-buis: Detecteert nauwkeurig gamma-, röntgen- en harde bètastraling bij een laag energieverbruik. Realtime grafiek + 50 alarmmeldingen: Volgt stralingstrends en slaat de alarmgeschiedenis op voor eenvoudige controle. Aanpasbare drievoudige alarmen: Ondersteunt visuele, akoestische en trilwaarschuwingen met instelbare drempelwaarden. Lange batterijduur: 1500 mAh-accu voor langdurig en betrouwbaar gebruik in het veld. Specificaties Kernstraling Bereik: 0,01 μSv/u - 999,99 μSv/u Nauwkeurigheid: 0,01 μSv/u Elektrisch veld Bereik: 1 V/m - 1999 V/m Nauwkeurigheid: 1 V/m Magnetisch veld Bereik: 0,01 μT - 99,99 μT Nauwkeurigheid: 0,01 μT Stralingsvermogen 0,2 - 1000 mW/m² Type gedetecteerde straling Ioniserende straling (gammastraling, enz.) Detector GM-buis met energiecompensatie (Geigertellerbuis) Dosisdebiet 0,00 - 10000 μSv/u (10 mSv/u) Cumulatief dosis-equivalent 0,00 μSv - 500,0 mSv Energiebereik 48 keV - 1,5 MeV ≤ ±30% (voor 137Cs) Gevoeligheid 80 CPM/μSv Dosis-eenheid μSv/u, μGy/u, mR/u, CPS, CPM Alarmmodus Licht, trilling, geluid Display 2,4-inch kleurenscherm Achtergrondverlichting Helderheid instelbaar Voeding USB-C (5 V/1 A) Batterij 1500 mAh Talen Engels, Chinees Afmetingen 138 x 63 x 32 mm Gewicht 141 g Inbegrepen 1x FNIRSI GC-03 stralingsdetector 1x USB-kabel 1x Manual Downloads Manual Firmware v1.0.4

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. CaptureCountAn Object Detector and Counter on the Raspberry Pi 5 Voltage Reference With Arduino Pro MiniLinearize and Calibrate Your Analog Inputs FPGAs for BeginnersThe Path From MCU to FPGA Programming Update: STM32 Wireless Innovation Design Contest 2024 Bluetooth LE With MAUIControl Apps for Android & Co. Port-Expanding Breakout BoardIncrease the Number of I/Os on Your Dev Board AI SpecialistMachine Learning with the Jetson Nano 2024: An AI OdysseyFirst Forays Into TensorFlow 262,144 Ways to Play The Game of LifeA Reader’s Project in Brief From Life’s ExperienceThe Chinese Dragon Get Your (Brushed DC) Motor Running!Sample Projects from the Elektor Motor Control Development Bundle ESP32-RS-232 AdapterA Wireless Link for Classic Test Equipment Starting Out in Electronics……More About Opamps ESP Library Recommendations Piezoelectric DevicesPeculiar Parts, the Series A Smart Object CounterImage Recognition Made Easy with Edge Impulse Resolve Your Trickiest Embedded Development Challenges ESP32 TerminalA Handheld Device with a Touch-Capable Display Getting Started With the Zephyr RTOSAs Powerful as It Is Hard to Master Award-Winning EthicsA Dialog with CTO Alexander Gerfer of Würth Elektronik eiSos on Enabling Innovation and Mindful Behavior Err-lectronicsCorrections, Updates, and Readers’ Letters Infographics: Embedded and AI Square Wave Generation BenchmarksExploring ESP32, Pico, and Other Microcontrollers

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Contents Projects PicoVoiceVoice alienation and sound effects with the Raspberry Pi Pico Navigation with Vibration Feedback POV Display Pulse Width Modulation (PWM) with the Raspberry Pi Pico Wi-Fi with the Raspberry Pi Pico 'Hello World' from the Raspberry Pi Pico and RP2040A look at the Raspberry Pi Foundation’s first microcontroller Simple On-Off Temperature Controller with Raspberry Pi HAT Multitasking with the Raspberry PiShowcase: a traffic lights controller The Raspberry Pi Ruler GadgetFun with a time-of-flight sensor Raspberry Pi Buffer Board (Mk. 1)Never blow up the I/O again FM radio with RDSA top HAT project for the Raspberry Pi LoRa with the Raspberry Pi PicoFun with MicroPython! Tutorials Qt for the Raspberry Pi Raspberry Pi Pico Programmingwith MicroPython and Thonny Raspberry Pi Full StackRPi and RF24 at the heart of a sensor network Raspberry Pi Bash Command Cheat Sheet Community Java on the Raspberry PiAn interview with Frank Delporte Reviews Introducing the New Raspberry Pi Pico W, H, and WH Secure Boot Solution for Raspberry PiRetrofit security at a reasonable price Review: SmartPi – Smart Meter Extension for Raspberry Pi Review: The Enviro+ Raspberry Pi HATMeasuring environmental data with Raspberry Pi and the HAT Enviro+ Review: Meet the Raspberry Pi 4All new but still good? Raspberry Pi Gets a Fast 3.5' Touch DisplayMore power at no extra charge Book Launch: Raspberry Pi for Radio Amateurs

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2 kanalen • 350 MHz • 1 GSa/s • 50.000 wfm/s • 7 inch Touchscreen De FNIRSI DPOS350P is een gestroomlijnde 4-in-1 krachtpatser in tabletvorm! Dit compacte en draagbare apparaat biedt serieuze functionaliteit: het combineert een 2-kanaals oscilloscoop (350 MHz), een signaalgenerator (50 MHz), een frequentieresponsanalyzer (50 MHz) en een spectrumanalyzer (200 kHz–350 MHz) – alles in één apparaat. Of u nu bezig bent met R&D, probleemoplossing of veldtesten, de DPOS350P biedt de tools die u nodig hebt om elektronische signalen nauwkeurig en helder te meten, genereren, analyseren en visualiseren. Het responsieve touchscreen met hoge resolutie en de intuïtieve bediening maken signaalanalyse snel, flexibel en efficiënt. Kenmerken Krachtige multifunctionele integratie 350 MHz 2-kanaals oscilloscoop met 1 GSa/s realtime sampling 50 MHz signaalgenerator met 14 standaard + aangepaste golfvormen Spectrum analyzer (200 kHz–350 MHz): Perfect voor EMI, RF en HF-testen Frequentieresponsanalyzer (FRA) tot 50 MHz Hoogwaardige golfvormregistratie Vernieuwingsfrequentie van 50.000 wfm/s voor realtime signaalhelderheid Bandbreedte van 350 MHz (enkelkanaalsmodus) Detecteert zeldzame en onwaarschijnlijke afwijkingen Scherp display & Soepele werking 7" IPS-touchscreen (resolutie 1024 x 600) Schakelen tussen grijstinten- en kleurtemperatuurweergave Eenvoudig te bedienen in verschillende testomgevingen Betrouwbaar, beveiligd en snel opladen Hoogspanningsbeveiliging tot 400 V Snel opladen met QC 18 W (volledig opladen in 2 uur) Gebouwd voor stabiele, langdurige werking Gegevensopslag en -export Sla tot 500 golfvormrecords + 90 screenshots op USB-export voor eenvoudige rapportage en offline analyse Specificaties Algemeen Scherm 7 inch (IPS, volledige kijkhoek) Resolutie 1024 x 600 pixels Interactiemodus Capacitief touchscreen Totaal stroomverbruik 10 W Inschakelconfiguratie 5 voorinstellingen Opladen QC 18 W, 12 V/1,5 A (USB-C) Accu 3,7 V, 8000 mAh lithiumbatterij Accuduur ca. 3 uur in gebruik, 5 uur stand-by Warmteafvoer Luchtkoeling Uitbreidingsinterface USB-poort Automatische uitschakeling 15 tot 60 minuten / uit Firmware-upgrade Ondersteunt .iso-image-upgrade Talen Engels / Portugees / Russisch / Chinees Afmetingen 190 x 128 x 37 mm Oscilloscoop Analoge kanalen 2 Analoge bandbreedte 350 MHz Stijgtijd 1 ns Real-time bemonsteringsfrequentie 1 GSa/s Geheugendiepte 60 Kpts Ingangsimpedantie 1 MΩ / 14PF Tijdbasisbereik 5 ns ~ 50 s Roltijdbasis 50 ms ~ 50 s Verticale gevoeligheid 2 mV ~ 20 V (1X) Verticaal bereik 16 mV ~ 160 V (1X) DC-nauwkeurigheid ±2% Tijd nauwkeurigheid ±0,01% Ingangskoppeling DC / AC Probe-verzwakking 1X / 10X / 100X Hardwarebandbreedtelimiet 150M / 20M Hoge-resolutiemodus 8 bit ~ 16 bit Parametermetingen 12 typen Cursormeting Tijd, periode, frequentie, niveau, spanning Triggerdetectie Digitale trigger Triggerkanaal CH1 / CH2 Triggermodus Auto / Single / Normal Triggerflank Rising edge / Falling edge Triggeronderdrukking L1 ~ L3 Triggerniveau Handmatig / automatisch 10% ~ 90% Screenshot-opslag 90 afbeeldingen Golfvormopslag 500 groepen Achtergrondraster Weergeven/verbergen Golfvormbeweging Grof/fijn afstellen Overspanningsbeveiliging Bestandsspanning 400 V Helderheid golfvorm Instelbaar Eenvoudig FFT-display Ja Digitale fluorescentie Ja Kleurtemperatuurweergave Ja X-Y-modus Ja ZOOM-tijdbasis Ja Automatische aanpassing met één druk op de knop Ja Terug naar nul met één druk op de knop Ja Gegevensbrowser Ja Signaalgenerator Golfvormtypen 14 standaardfuncties + vastgelegde golfvorm Frequentie 0~50 MHz (alleen sinusgolf, andere golfvormen tot 10M/5M/3M) Amplitude 0~5 VPP Offset -2,5 V ~ +2,5 V Bedrijfstype cyclus 0,1~99,9% Frequentieresolutie 1 Hz Amplituderesolutie 1 mV Offsetresolutie 1 mV Inschakelduurresolutie 0,1% Aanpasbare vastgelegde golfvorm 500 groepen Frequentieresponsanalyzer (FRA) Frequentie van het excitatiesignaal 100 Hz ~ 50 MHz Ampitude van het excitatiesignaal 0~5 VPP Offset van het excitatiesignaal -2,5 V ~ +2,5 V Aantal excitatiefrequenties 20~500 Cursormeting Frequentie / versterking / fase Bedrijfsmodus Enkelvoudig / cyclisch Systeemkalibratie Ja Spectrumanalyzer Conversiemethode FFT FFT-lengte 4K ~ 32K Frequentiebereik 200 kHz ~ 350 MHz Niveaubereik -60 dBmV ~ +260 dBmV Cursormeting Frequentie / amplitude Markeringsparameter Maximale energieharmonischen Watervalgrafiek Ja 3D-watervalgrafiek Ja Automatische afstelling Ja Systeemkalibratie Ja Inbegrepen 1x FNIRSI DPOS350P (4-in-1) 2x 350 MHz-sondes 1x QC 18 W snellader (EU) 1x USB-datakabel 1x Krokodillenklem 1x Opbergtas 1x Manual Downloads Manual Firmware

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In 35 Projects with the Raspberry Pi and Arduino The Internet of Things (IoT) is a trend with a strong technological impulse. At home, we want to do everything on our tablets, from browsing Facebook to watching TV, from operating lights to keeping an eye on the temperature. In 35 fun projects, this book will show you how to build your own Internet of Things system. We'll cover the hardware (primarily the Raspberry Pi and Arduino) and the software that makes control via Internet possible. We employ Wi-Fi and radio links so no requirement any longer to install cabling crisscross through your home. Assuming the projects in the book are finished, you have a complete Internet of Things system that allows you to control and view of everything in your home. For example, if there's something in the mail box or the car is securely in the garage. Also, you can switch on the lights and the alarm from your couch. The crisp explanations allow the projects to be customized with ease, for example, to turn on your coffee machine or TV remotely. The index gives easy access to creative projects that can serve as an example, enabling you to do all the connecting to the IoT independently. All project software can be downloaded free of charge from the Elektor website. In this unique book, Raspberry Pi, Arduino and HTML webpages with stylesheets and JavaScript come together in clearly-described, easy-to-build projects. This special book is an essential part of your collection!

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De behuizing van de Raspberry Pi 5 is een verfijning van de behuizing van de Raspberry Pi 4, met verbeterde thermische eigenschappen om het hogere piekstroomverbruik van de Raspberry Pi 5 te ondersteunen. Het integreert een ventilator met variabele snelheid die wordt gevoed en bestuurd via een speciale connector op de Raspberry Pi 5.

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Learn to program displays and GUIs with Python This book is about Raspberry Pi 4 display projects. The book starts by explaining how to install the latest Raspbian operating system on an SD card, and how to configure and use the GPIO ports. The core of the book explains the following topics in simple terms with fully tested and working example projects: Simple LED projects Bar graph LED projects Matrix LED projects Bitmap LED projects LED strips LCDs OLED displays E-paper displays TFT displays 7-inch touch screen GUI Programming with Tkinder One unique feature of this book is that it covers almost all types of display that readers will need to use in their Raspberry Pi based projects. The operation of each project is fully given, including block diagrams, circuit diagrams, and commented full program listings. It is therefore an easy task to convert the given projects to run on other popular platforms, such as Arduino or PIC microcontrollers. Python program listings of all Raspberry Pi projects developed in this book are available for download at Elektor.com. Readers can use these programs in their projects. Alternatively, they can modify the programs to suit their applications.

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