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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. ESP32 Audio Transceiver Board (Part 2)Wireless Audio Transmission Inductive AM TransmitterUses Pico’s PIO in an Arduino Sketch Navigating Wireless ProtocolsA Technical Guide Satellite Tracking Using LoRaThe TinyGS Network Bringing Space Data to Earth 4G-Compatible SMS Remote ControlRemotely Control Your Equipment High-Speed ProbeHigh-Impedance Inputs for Signals up to 200 MHz From Life’s ExperienceKafka KrakenSDR Performance Tests with the RP2350Is an Upgrade from Raspberry Pi Pico 1 to Pico 2 Worthwhile? Contact-Free E-Field Measurements (2)A Laser Vibrometer for Assessing the Membrane's Vibrations Crystals and OscillatorsImproving Crystal Accuracy Through Capacitor Selection Starting Out in ElectronicsSpecial Audio ICs Getting Started with Coding a DIY Project SPECTRAN® V6 MobileModular, Configurable Real-Time Spectrum Analyzer for Reliable Measurements Across All Frequency Ranges The Future of AI Is Forged in SiliconAn Interview with Anastasiia Nosova Autonomous Sensor Node v2.0 (System Architecture)Solar-Powered Sensing Platform with Integrated GPS, LoRaWAN, and More Precise PositioningBluetooth Channel Sounding Tested Powering the Future of Wireless CommunicationBTRY’s Ultra-Thin Solid-State Batteries Test-Driven Development in Firmware Writing Phone-Controlled Model CarWi-Fi + ESP32 + Smartphone = Remote Control 2025: An AI OdysseyAI Reasoning Models: The Chain-of-Thought Revolution Solar Charge Controller with MPP Tracking (3)Software and Commissioning Raspberry Pi Zero Web Streaming CameraUsing the ZeroTier VPN

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Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit! Sie sind noch kein Mitglied? Hier klicken! Die Open-Source-Prozessorarchitektur RISC-V16 Boards und MCUs, die Sie kennen sollten Audio-Player mit FPGA und EqualizerTeil 1. Digitale Audiosignale mischen mit einem MKR Vidor 4000 von Arduino Laserkopf für Pico-basierte SanduhrZeichnen mit Licht Nehmen Sie teil am STM32 Edge AI Contest! Umweltüberwachung von Pflanzen mit mehreren SensorenDrahtlose Messung der Wasserversorgung und Lichtverhältnisse Maixduino: Automatischer KI-TüröffnerGesichtserkennung mit einer Kamera Embedded-Elektronik 2024KI wird die Branche neu definieren Ladungsbasiertes In-Memory Compute bei EnCharge AI KI-Inferencing bei 10-fach geringerer Leistungsaufnahme zu 20-fach geringeren Kosten Click-Board hilft bei der Entwicklung und dem Training von ML-Modellen für die Schwingungsanalyse Der Elektor Mini-WheelieEin Bausatz für einen selbstbalancierenden Roboter MCU, ich sehe dich!MCUViewer, ein Open-Source-Multiplattform-Debugging-Werkzeug USB-2.0-IsolatorGeräte galvanisch isoliert per USB verbinden Eingriff vor dem SchadenPredictive Maintenance in der Praxis SPoE - Elektromagnetische VerträglichkeitSingle-Pair mit Power-over-Ethernet im EMV-Fokus Retro-TechnikWie das Farbfernsehen eine neue Welt schuf EKG-MonitorMit Hexabitz-Modulen und einem STM32CubeMonitor Der Kampf um KI at the Edge HaLow erreicht Rekorddistanz von 16 km für WLAN bei 900 MHz Erster CHERI RISC-V-Embedded Chip und Early Access Programm Die dritte Generation der Waldbrandfrüherkennung nutzt Satellitenverbindungen Aus dem Leben gegriffenDie Qual der Wahl Aller Anfang......ist nicht schwer: Wir setzen die Filterung und Klangregelung fort. Riesen-LED-UhrNeuauflage eines Elektor-Klassikers Ein modularer Ansatz für die SensorprüfungDas Sensor Evaluation Board mit ESP32-S3 2025: Eine Odyssee in die KIDer Aufstieg der Basismodelle und ihre Rolle bei der Demokratisierung der KImocratizing AI Standalone MIDI-Synthesizer mit Raspberry PTeil 1: Eine Plattform für Edge-KI-Experimente vorbereiten Projekt 2.0Korrekturen, Updates und Leserbriefe CPU, GPU, DSP, FPGA; ein universeller KI-RISC-V-Prozessor kann alles! CEO-Interview: Ventivas dünne und kühle Technologie Dual-Core-Programmierung beim Raspberry Pi PicoEinstieg in die Welt der parallelen Programmierung

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Der ESP8266 von Espressif ist ein Wi-Fi-Mikrochip mit vollem TCP/IP-Stack und Mikrocontroller-Fähigkeit. Es hat mit seinem niedrigen Preis Wellen in der Herstellergemeinschaft geschlagen. Aber viele Entwickler waren unzufrieden mit dem hohen Stromverbrauch von ESP8266. Der ESP32, ausgestattet mit einem ULP (Ultra Low Power) Coprozessor, bietet eine Lösung. Dieses E-Book enthält eine Reihe von Projekten mit ESP32 & ESP8266 sowie ein Interview mit dem CEO von Espressif Teo Swee Ann. Artikel ESP32 für den Einsatz in Geräten der Industrie 4.0 Scrollende Nachrichtenanzeige, 512 LEDs per WLAN mit ESP-12F ansteuern Das vernetzte Treibhaus, IoT-Modellprojekt mit MQTT und Node-RED VFD-Röhren-Uhr mit ESP32, Internet-Zeit auf Vintage-Displays ESP32 stromsparend, die Programmierung des ULP-Coprozessors DCF77-Emulator mit ESP8266, DCF durch Internet-Zeit ersetzen Was steckt hinter dem berühmtem ESP8266? WLAN-Thermostat, flexible und programmierbare Temperatursteuerung Timer für den WLAN-Thermostat, sieben Kanäle mit atomarer Genauigkeit Schweizer Taschenmesser für Mikrocontroller, PlatformIO als universelles Programmier-Tool ESP32 für Power-User, native Programmierung Weather-Display, aktuelle Wetterdaten auf einem LC-Display darstellen GoNotify, ein flexibles IoT-Sensorinterface. Einfach in die Cloud. Der große Bruder des ESP8266, erste Schritte mit dem ESP32 und der Arduino-IDE MicroPython, Python für kleine Systeme RGBDigit Clock, farbenfrohe 7-Segment-Displays zeigen Zeit und Klima USB-Programmieradapter für die ESP-Module von Espressif Heizkesselmonitor mit ESP8266, Haustechnik für die Energiewende WLAN für Mikrocontroller, steuern mit dem ESP8266 Die Rückkehr des WLAN-Controller-Boards, Smartphone steuert IoT-Objekte WLAN kompakt und autonom, oder: Wie man den ESP8266 auch ohne MCU einsetzen kann

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. DIY Solar Energy StorageBuild Your Own Energy Store for a PV Solar Array Solar Module SimulatorA Solution for Testing and Optimizing MPP Trackers and Inverters The STM32 Edge AI ContestExplore the new STM32N6 and Compete for a Share of €5,000 in Prizes! Widening the BandgapWhy There Is So Much Interest in SiC and GaN Notebook Power BankExtend the Life of Your Aged Laptop Medical RobotsOvercoming Technical and Regulatory Hurdles Frost Guard for Fruit Plants With Temperature Data Logger The Analog ThingThe Arduino of Analog Computing? Energy Saving Relay DriverSaves 90% of Relay Drive Power Improving the ET5410A+ DC loadKeep Cool and Be Quiet, Please electronica 2024 in Review Electromagnetic CompatibilityEMC in a Nutshell! Starting Out in Electronics……Filters Actively Reducing Power Dissipation With Dropping CapacitorsA Clever Use of Capacitive Reactance The Affordable MCP4725 12-Bit Digital-to-Analog ConverterAn EEPROM Feature Enables Safe Switch-On Behavior Fnirsi LCR-ST1 Smart LCR SMD Tweezers Raspberry Pi-Based Private Test & Measurement LabFirst Things First: The ADC Electronic Load ResistorAn Out-of-the-Box Project 2025: An AI OdysseySome Projects to See in the New Year AmpVolt v2.0 Project Update100 Amps and Beyond! Err-lectronicsCorrections, Updates, and Readers’ Letters Unveiling Ethical TransparencyInsights from Ethics in Electronics’s 2024 Survey Elektor Audio DSP FX Processor Board (2)Creating Applications

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The ESP8266 from Espressif is a Wi-Fi microchip with full TCP/IP stack and microcontroller capability. It has made waves in the maker community with its low price. But many developers were unhappy with ESP8266's high power consumption. The ESP32, equipped with a ULP (Ultra Low Power) coprocessor, offers a remedy for this. This e-book features a number of projects featuring ESP32 & ESP8266 as well as an interview with the CEO of Espressif Teo Swee Ann. Articles ESP32 for Use in Industry 4.0 Equipment Scrolling Message Display, 512 LEDs controlled over Wi-Fi via an ESP-12F The Connected Greenhouse IoT demonstration project using MQTT and Node-RED VFD-tube Clock with ESP32 with an accurate Internet-derived time ESP32 Low Power DCF77 Emulator with ESP8266 ESP8266 on the Elektor Android I/O Board The Reason Behind the Hugely Popular ESP8266? Wi-Fi Desktop Thermostat Timers for the Wi-Fi Desktop Thermostat PlatformIO, the Universal Programming Tool Weather Display, Visualize current weather data on an LC display GoNotify, a Flexible IoT Sensor Interface ESP32 for Power Users USB Programming Adaptor for ESP8266 Getting started with ESP32 and the Arduino IDE MicroPython, Python for small systems RGBDigit Clock WLAN for Microcontrollers Return of the Wi-Fi Controller Board Compact and Self-contained WLAN

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UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 1)Artificial Neurons EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 1)Dual DC LISN ELECTRONIC LOAD FOR DC AND ACUp to 400 V and 10 A (Peak) STARTING OUT IN ELECTRONICSEasier Than Imagined! ...Taking on the Choke! IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 1)The Hardware and Software AN IN-DEPTH LOOK AT MAINS TRANSFORMERSHow Do They Behave When They Are Switched On and Off? YES WE CAN WITH PICAN 3A CAN Bus HAT for the Raspberry Pi 4 BALCONY POWER PLANTDIY Solar Balcony = Speedy Payback! IMAGING AND VIDEO-STREAMING WITH A RASPBERRY PI 4The Raspberry Pi High-Quality Camera in Practice USING DISPLAYS IN RASPBERRY PI PROJECTSSample Chapter: Organic Light Emitting Diode Displays (OLED) HANDS ON THE PARALLAX PROPELLER 2 (PART 4)Sending Strings ELEKTOR @ 60A Look Back at Previous Septembers HOMELAB TOURSIn the Friesian Countryside, Where the Tubes Bloom ... HYBRIDSPeculiar Parts, the series A COMPASS ROSE USING THE GY-271Or Why We Move in Figures of Eight to Calibrate a Sensor FINDING YOUR FOOTPRINTCalculate the Carbon Footprint of Your Electronics ESP32-CONNECTED THERMOSTATKeep Your Wine at the Right Temperature! MAGNETIC LEVITATION THE DIGITAL WAYESP32 Pico Replaces the Analog Comparator ULTIMATE ARDUINO UNO HARDWARE MANUALSample Chapter: Main Microcontroller Bootloader MICROPYTHON FOR THE ESP32 AND FRIENDS (PART 2)Control Matrix Displays Easily MADMACHINE SWIFTIO BOARDModern Language Meets Modern Hardware FROM LIFE’S EXPERIENCEOn-Again, Off-Again Relationship HEXADOKUThe Original Elektorized Sudoku

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Temporary Delay in the Delivery of Unitree Robots Like many other suppliers, we are currently experiencing delays in the delivery of Unitree robots. A shipment from our supplier is currently held in customs, which has unfortunately led to later-than-planned deliveries for previously placed orders. We are actively working with our supplier to resolve this issue and expect more clarity soon, but at this time, we cannot provide any guarantees. Additionally, a new shipment is already on its way, though it will take some time to arrive. Since other suppliers are facing similar challenges, switching to a different provider is unlikely to result in a faster solution. Our top priority remains fulfilling existing orders. If you have any questions or would like to update your order, please do not hesitate to contact our customer service team. We will keep you informed of any further developments. Unitree Go2 series consists of quadruped robots for the research & development of autonomous systems in the fields of human-robot interaction (HRI), SLAM & transportation. Due to the four legs, as well as the 12DOF, this robot can handle a variety of different terrains. The Go2 comes with a perfected drive & power management system, which enables a speed (depending on the version) of up to 3.7 m/s or 11.88 km/h with an operating time of up to 4 hours. Furthermore, the motors have a torque of 45 N.m at the body/thighs and at the knees, which also allow jumps or backflips. Features Super Recognition System: 4D LIDAR L1 Max Running Speed: approx. 5 m/s Peak Joint Torque: approx. 45 N.m Wireless Module: WiFi 6/Bluetooth/4G Ultra-long battery Endurance: approx. 2-4 h (long battery life measured in real life) Intelligent Side-follow System: ISS 2.0 Specifications Tracking module: Remote-controlled or automatic tracking Front camera: Image tansmission Resolution 1280x720, FOV 120°, Ultra wide angle lens deliver rich clarity Front lamp: Brightly lights the way ahead 4D LiDAR L1: 360°x90° omnidirectional ultra-wide-angle scanning allows automatic avoidance with small blind spot and stable operation 12 knee joint motors: Strong and powerful, Beautiful and simple, Brandy new visual experience Intercom microphone: Effective communication with no scenario restrictions Self-retracting strap: Easy to carry and load things More stable, more powerful with advanced devices: 3D LiDAR, 4G ESIM Card, WiFi 6 with Dual-band, Bluetooth 5.2 for stable connection and remote control Powerful Computing Core: Motion controller, High-performance ARM processor, Improved Al algorithm processor, External ORIN NX/NANO Smart battery: Standard 8000 mAh battery, Long-endurance 15000 mAh battery, Protection from over-temp, overcharge and short-circuit Speaker for music play: Listen to music as your pleasure Unitree Go2 Variants The Go2 impresses not only with its technical capabilities, but also with a modern and slim design that gives it a futuristic look and makes it a real eye-catcher. The Go2 Air is specially designed for demos and presentations. With its basic features, it offers a solid basis for demonstrating the movement capabilities and functionality of a four-legged robot. Important: The Go2 Air is delivered without a controller. This can be purchased optionally. With a powerful 8-core high-performance CPU, the Pro and Edu offer impressive computing power required for complex tasks and demanding calculations. This enables faster and more efficient data processing and makes the Pro and Edu a reliable partner for your projects. From the Edu version onwards, the Go2 is programmable and opens up endless possibilities for developing and researching your own robotics applications. The Go2 is also able to handle a step height of up to 14 cm. This makes it an ideal tool for research, education and entry into the world of robotics. The Go2 Edu comes with a remote controller that gives you easy and intuitive control. You also get a docking station with impressive computing power of 100 TOPS, which is equipped with powerful AI algorithms and offers you technical support. Go2 Edu is equipped with a powerful 15000 mAh battery that gives it an impressive runtime of up to 4 hours. This long operating time allows the robot to carry out longer exploration missions and complete demanding tasks. Model Comparison Air Pro Edu/Edu Plus Dimensions (standing) 70 x 31 x 40 cm 70 x 31 x 40 cm 70 x 31 x 40 cm Dimensions (crouching) 76 x 31 x 20 cm 76 x 31 x 20 cm 76 x 31 x 20 cm Material Aluminium alloy + High strength engineering plastic Aluminium alloy + High strength engineering plastic Aluminium alloy + High strength engineering plastic Weight (with battery) about 15 kg about 15 kg about 15 kg Voltage 28~33.6 V 28~33.6 V 28~33.6 V Peaking capacity about 3000 W about 3000 W about 3000 W Payload ≈7 kg (MAX ~ 10 kg) ≈8 kg (MAX ~ 10 kg) ≈8 kg (MAX ~ 12 kg) Speed 0~2.5 m/s 0~3.5 m/s 0~3.7 m/s (MAX ~ 5 m/s) Max Climb Drop Height about 15 cm about 16 cm about 16 cm Max Climb Angle 30° 40° 40° Basic Computing Power N/A 8-core High-performance CPU 8-core High-performance CPU Aluminum knee joint motor 12 set 12 set 12 set Intra-joint circuit (knee) ✓ ✓ ✓ Joint Heat Pipe Cooler ✓ ✓ ✓ Range of Motion Body: −48~48° Body: −48~48° Body: −48~48° Thigh: −200°~90° Thigh: −200°~90° Thigh: −200°~90° Shank: −156°~−48° Shank: −156°~−48° Shank: −156°~−48° Max Torque N/A about 45 N.m about 45 N.m Super-wide-angle 3D LiDAR ✓ ✓ ✓ Wireless Vector Positioning Tracking Module N/A ✓ ✓ HD Wide-angle Camera ✓ ✓ ✓ Foot-end force sensor N/A N/A ✓ Basic Action ✓ ✓ ✓ Auto-scaling strap N/A ✓ N/A Upgraded Intelligent OTA ✓ ✓ ✓ RTT 2.0 Image Transmission ✓ ✓ ✓ App Basic Remote Control ✓ ✓ ✓ App Data Viewing ✓ ✓ ✓ App Graphical Programme ✓ ✓ ✓ Front Lamp (3 W) ✓ ✓ ✓ WiFi 6 with Dual-band ✓ ✓ ✓ Bluetooth 5.2/4.2/2.1 ✓ ✓ ✓ 4G Module N/A CN/GB CN/GB Voice Function N/A ✓ ✓ Music Playback N/A ✓ ✓ ISS 2.0 Intelligent side-follow system N/A ✓ ✓ Intelligent detection and avoidance ✓ ✓ ✓ Secondary development N/A N/A ✓ Manual controller Optional Optional ✓ High computing power module N/A N/A Edu: 40 TOPS computing power Edu Plus: 100 TOPS computing power NVIDIA Jetson Orin (optional) Smart Battery Standard (8000 mAh) Standard (8000 mAh) Long endurance (15000 mAh) Battery Life 1-2 h 1-2 h 2-4 h Charger Standard (33.6 V, 3.5 A) Standard (33.6 V, 3.5 A) Fast charge (33.6 V, 9 A) Included 1x Unitree Go2 Pro 1x Unitree Go2 Battery (8000 mAh) Downloads Documentation iOS/Android apps GitHub

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This highly sensitive source picoammeter is designed for measuring and logging very small currents down to the pA range – making it an ideal instrument for scientific and research applications, including physics, materials science and electron microscopy. Full-featured at an affordable price, the SPA100 combines sensitivity, accuracy and stability to allow users to measure low currents with high precision as well as conveniently source bias voltages for experimentation. SPA100 also doubles as an ultra-high resistance meter, measuring accurately into the teraohm range. The SPA100 connects to PC via USB and utilises the complimentary software SPA – enabling users to easily measure, graph and capture readings with timestamps and measurement stability information. Features Input: ±2 mA to ±200 pA in 8 ranges Accuracy and Resolution (2 Hz): ±2 mA range: ±0.1%, resolution <20 nA ±200 uA range: ±0.1%, resolution <2 nA ±20 uA range: ±0.2%, resolution <200 pA ±2 uA range: ±0.2%, resolution <20 pA ±200 nA range: ±0.5%, resolution <2 pA ±20 nA range: ±0.5%, resolution <200 fA ±2 nA range: ±1.0%, resolution <20 fA ±200 pA range: ±1.5%, resolution <2 fA Sample rate: 2 Hz (18 bit) or 10 Hz (16 bit) Adjustable filter: 1 sample to 64 samples Output voltage: -40 V to +40 V (in 1 V increments), output resistance 2.7 Kohms Resistance Measurement: ~1 Kohms to 40 Tohms (e.g 40 V source, 1 pA measure) Accuracy: >±0.5% 1 Mohm to 1 Tohm Powered via USB 2.0 (instrument uses up to 0.3 A when in-use) Included 1x SPA100 Source Picoammeter 1x USB cable Downloads Manual Software

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. ESP32 Audio Transceiver Board (Part 2)Wireless Audio Transmission Inductive AM TransmitterUses Pico’s PIO in an Arduino Sketch Navigating Wireless ProtocolsA Technical Guide Satellite Tracking Using LoRaThe TinyGS Network Bringing Space Data to Earth 4G-Compatible SMS Remote ControlRemotely Control Your Equipment High-Speed ProbeHigh-Impedance Inputs for Signals up to 200 MHz From Life’s ExperienceKafka KrakenSDR Performance Tests with the RP2350Is an Upgrade from Raspberry Pi Pico 1 to Pico 2 Worthwhile? Contact-Free E-Field Measurements (2)A Laser Vibrometer for Assessing the Membrane's Vibrations Crystals and OscillatorsImproving Crystal Accuracy Through Capacitor Selection Starting Out in ElectronicsSpecial Audio ICs Getting Started with Coding a DIY Project SPECTRAN® V6 MobileModular, Configurable Real-Time Spectrum Analyzer for Reliable Measurements Across All Frequency Ranges The Future of AI Is Forged in SiliconAn Interview with Anastasiia Nosova Autonomous Sensor Node v2.0 (System Architecture)Solar-Powered Sensing Platform with Integrated GPS, LoRaWAN, and More Precise PositioningBluetooth Channel Sounding Tested Powering the Future of Wireless CommunicationBTRY’s Ultra-Thin Solid-State Batteries Test-Driven Development in Firmware Writing Phone-Controlled Model CarWi-Fi + ESP32 + Smartphone = Remote Control 2025: An AI OdysseyAI Reasoning Models: The Chain-of-Thought Revolution Solar Charge Controller with MPP Tracking (3)Software and Commissioning Raspberry Pi Zero Web Streaming CameraUsing the ZeroTier VPN

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From SRPP and Mu-Follower to OTL Designs Tube amplifiers suffer from distortion. Fortunately, circuits such as the SRPP amplifier, mu-follower, and beta-follower produce minimal distortion even at output voltages of 50 to 100 Vpeak. These designs are often published with errors. Without a sound understanding of the theory, it is easy to arrive at a flawed design. In the first section of this book, we investigate the origin of distortion, while in the second we investigate the design of and SRPP and a mu-follower. On the internet we can find the most exotic designs. Evaluating them teaches us that these designs often make matters worse rather than better. In the chapter on incorrect SRPPs and mu-followers, we sometimes see bizarre and misguided designs where using a simple single-triode amplifier would perform much better. Push-pull output stages also exist. A great number of them are examined, and their similarity to the SRPP is discussed. This is done especially with the help of the theory behind the OTL based on the ‘mother’ of all OTLs, the Philips HF303. Finally, attention is given to frequency characteristics and technical matters such as the supply voltage and the filament power supply. To illustrate these points, there are a few designs covering the subjects discussed. This book presents much new theory that has not been published before. It is often an eye-opener, showing that many things have a beautiful and unexpected simplicity.

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Diese Ausgabe steht allen GOLD- und GREEN-Mitgliedern auf der ElektorMagazine-Website zum Download bereit! Sie sind noch kein Mitglied? Hier klicken! Raspberry Pi Pico als Spektrum-AnalyserFFTs auf preiswerter Hardware-Basis ±40 V Linearer SpannungsreglerEine alternative Stromversorgung für die Fortissimo-100-Endstufe... und andere! Drahtlose MCU-Kommunikation flexibel gemachtEEPROM eröffnet Netzwerk-Perspektiven für drahtlose MCUs 5.000 € zu gewinnen!Machen Sie mit beim STM32 Wireless Innovation Design Contest! 2023: Odyssee in der KILoslegen mit dem Code-Interpreter von ChatGPT LoRa, ein Schweizer TaschenmesserTeil 1: Das LoRa-Protokoll und seine Vorteile Einstellbare Stromsenke mit integriertem TaktgeberZum Testen von Netzteilen, Spannungswandlern und Batterien Zwei neue Arduino UNO R4 Boards: Minima und WiFi Logarithmische PotentiometerSie sind exponentiell! Motortreiber-Breakout-BoardEin BoB für einen 5-A-Treiber für DC-Motoren mit einer Größe von 3×3 mm Aus dem Leben gegriffenGefährliche Elektronik Ist Mobilfunk die energiesparendste Option für das IoT?LTE-M und NB-IoT: Energieanforderungen in LPWAN-Implementierungen Kabellose Kommunikation in IoT-Systemen mit Modulen MKR von ArduinoKommunikationsstandards der Arduino-Module für IoT AC-Verluste in magnetischen BauteilenVermeiden Sie heiße Induktivitäten! Messungen für eine optimale Cloud-Implementierung Matter-Implementierung: Was braucht es, um Matter-Geräte einzusetzen? Neue 2,4 GHz-Funkeinheiten von Circuit DesignPrädestiniert für Fernsteuerung und Überwachung PIC o’Clock – am Puls der ZeitDesign eines SDR-Zeitzeichen-Empfängers Due Diligence DirectiveBusiness as Usual Will Not Do Aller Anfang...Ist gar nicht schwer: Spannungsverstärkung Infraschall-Rekorder mit dem Arduino Pro MiniEin Beispielprojekt aus dem Elektor-Buch „Arduino & Co.“ Cloud-basierter EnergiezählerMit ESP32-Modul und PZEM-004T-Spannungs-/ Stromsensor Eine Anleitung zur Bare-Metal-ProgrammierungTeil 2: Exaktes Timing, UART und Debugging

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Projects with Thonny-IDE, uPyCraft-IDE, and ESP32 The 'Python' programming language has enjoyed an enormous upswing in recent years. Not least, various single-board systems such as the Raspberry Pi have contributed to its popularity. But Python has also found widespread use in other fields, such as artificial intelligence (AI) or machine learning (ML). It is obvious, therefore, to use Python or the 'MicroPython' variant for use in SoCs (Systems on Chip) as well. Powerful controllers such as the ESP32 from Espressif Systems offer excellent performance as well as Wi-Fi and Bluetooth functionality at an affordable price. With these features, the Maker scene has been taken by storm. Compared to other controllers, the ESP32 has a significantly larger flash and SRAM memory, as well as a much higher CPU speed. Due to these characteristics, the chip is not only suitable for classic C applications, but also for programming with MicroPython. This book introduces the application of modern one-chip systems. In addition to the technical background, the focus is on MicroPython itself. After the introduction to the language, the programming skills learned are immediately put into practice. The individual projects are suitable for use in the laboratory as well as for everyday applications. So, in addition to the actual learning effect, the focus is also on the joy of building complete and useful devices. By using laboratory breadboards, circuits of all kinds can be realized with little effort, turning the testing and debugging of the 100% homebrew projects into an instructive pleasure. The various applications, such as weather stations, digital voltmeters, ultrasound range finders, RFID card readers or function generators, make the projects presented ideally suited for practical courses or subject and study work in the natural sciences, or in science and technology classes.

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