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The Elektor Audio DSP FX Processor combines an ESP32 microcontroller and an ADAU1701 Audio DSP from Analog Devices. Besides a user-programmable DSP core, the ADAU1701 has high-quality analog-to-digital and digital-to-analog converters built-in and features an I²S port. This makes it suitable as a high-quality audio interface for the ESP32. Programs for the ESP32 can be created with Arduino, Platform IO, CMake or by using the Espressif IDF in another way. Programs for the ADAU7101 audio DSPs are created with the free visual programming tool SigmaStudio by dragging and dropping pre-defined algorithm blocks on a canvas. Applications Bluetooth/Wi-Fi audio sink (e.g. loudspeaker) & source Guitar effect pedal (stomp box) Music synthesizer Sound/function generator Programmable cross-over filter for loudspeakers Advanced audio effects processor (reverb, chorus, pitch shifting, etc.) Internet-connected audio device DSP experimentation platform Wireless MIDI MIDI to CV converter and many more... Specifications ADAU1701 28-/56-bit, 50-MIPS digital audio processor supporting sampling rates of up to 192 kHz ESP32 32-bit dual-core microcontroller with Wi-Fi 802.11b/g/n and Bluetooth 4.2 BR/EDR and BLE 2x 24-bit audio inputs (2 V RMS, 20 kΩ) 4x 24-bit audio outputs (0.9 V RMS, 600 Ω) 4x Control potentiometer MIDI in- and output I²C expansion port Multi-mode operation Power supply: 5 V DC USB or 7.5-12 V DC (barrel jack, center pin is GND) Current consumption (average): 200 mA Included 1x ESP32 Audio DSP FX Processor board (assembled) 1x ESP32-PICO-KIT 2x Jumpers 2x 18-pin headers (female) 4x 10 KB potentiometers Downloads Documentation GitHub

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The FNIRSI DPS150 is a high-performance adjustable DC power supply that features a USB-C input interface and multiple power supply modes, allowing precise adjustment of output voltage (0-30 V) and current (0-5 A). It provides efficient, low-consumption, and stable output, equipped with multiple safety protection functions including overvoltage, overcurrent, overload, overheating, and reverse connection. It can be flexibly applied to serial connection of multiple devices, with rich and user-friendly display and operation, compact and portable design, meeting various application needs. Features 30 V, 5 A, 150 W variable DC power with 0.01 V, 0.001 A precision, CC/CV modes, and <20 mV ripple to protect sensitive electronics. Supports PC, QC, and DC inputs with programmable outputs and 6 preset voltage/current settings. Compatible with 4 mm banana plugs, U-shaped terminals, and copper wires for various equipment. 8 safety mechanisms including overvoltage, current, short circuit, and overheating protection. 2.8-inch HD IPS screen with 90° flip, numerical and curve displays for easy monitoring. Small, space-saving design for use in labs, repairs, and DIY projects. Specifications Input Voltage 5~32 V DC Input Current 100 mA-5 A Output Voltage 0-30 V Output Current 0~5 A Output Power 0-150 W Input Way PD fast charger QC fast charger Power bank DC power adapters Operating Environment 0-40°C Load Regulation 0.49% Full Load Efficiency 96.30% Display 2.8 inch (320 x 240) Dimensions 106 x 76 x 28 mm Weight 178 g Included 1x DPS150 Power Supply 2x Alligator clip wires (black & red) 1x Micro USB cable 1x Manual Downloads Manual Firmware V0.0.1

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AI Projects for the Raspberry Pi with the AI HAT+ Edge AI is transforming everyday devices by putting intelligence where it matters most: directly inside the hardware. With on-device inference, a camera can recognize a visitor instantly, a phone can translate speech without streaming audio to the cloud, and a wearable can detect anomalies in real time—fast, private, and reliable even when the network disappears. This book is your practical guide to building exactly those kinds of systems with the Raspberry Pi AI HAT+ and the Hailo-8L accelerator. You’ll start with clear foundations: core AI and machine-learning concepts, how neural networks work, and what truly distinguishes Edge AI from cloud AI—plus an honest look at ethical considerations and future impacts. Then it’s straight to hands-on physical computing. Step by step, you’ll set up Raspberry Pi OS, power and cooling, and develop in Python using the Thonny IDE. You’ll learn GPIO basics with lights and servos, mount the AI HAT+ hardware, install and verify the Hailo software stack, and connect the right camera—official modules or USB webcams, even multiple cameras. From your first pipeline to real projects, you’ll run person detection, pose estimation, segmentation, and depth estimation, then level up with YOLO object detection: smart alerts, guest counters, and custom extensions. You’ll even connect vision to motion by combining gesture recognition with servo-driven mechanisms, including a robotic arm. With troubleshooting tips, hardware essentials, and a practical Python refresher, this book turns Edge AI from buzzword into buildable reality.

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Learn how to use the ESP32 Microcontroller and MicroPython programming in your future projects! The project book, written by well-known Elektor author Dogan Ibrahim, holds many software- and hardware-based projects especially developed for the MakePython ESP32 Development Kit. The kit comes with several LEDs, sensors, and actuators. The kit will help you acquire the basic knowledge to create IoT projects. The book’s fully evaluated projects feature all the supplied components. Each project includes a block diagram, a circuit diagram, a full program listing, and a complete program description. Included in the kit 1x MakePython ESP32 development board with LCD 1x Ultrasonic ranging module 1x Temperature and humidity sensor 1x Buzzer module 1x DS18B20 module 1x Infrared module 1x Potentiometer 1x WS2812 module 1x Sound sensor 1x Vibration sensor 1x Photosensitive resistance module 1x Pulse sensor 1x Servo motor 1x USB cable 2x Button 2x Breadboard 45x Jumper wire 10x Resistor 330R 10x LED (Red) 10x LED (Green) 1x Project book (206 pages) 46 Projects in the Book LED Projects Blinking LED Flashing SOS Blinking LED – using a timer Alternately flashing LEDs Button control Changing the LED flashing rate using pushbutton interrupts Chasing-LEDs Binary-counting LEDs Christmas lights (random-flashing 8 LEDs) Electronic dice Lucky day of the week Pulsewidth Modulation (PWM) Projects Generate a 1000-Hz PWM waveform with 50% duty cycle LED brightness control Measuring the frequency and duty cycle of a PWM waveform Melody maker Simple electronic organ Servo motor control Servo motor DS18B20 thermometer Analog To Digital Converter (ADC) Projects Voltmeter Plotting the analog input voltage ESP32 internal temperature sensor Ohmmeter Photosensitive resistance module Digital To Analog Converter (DAC) Projects Generating fixed voltages Generating a sawtooth-wave signal Generating a triangular-wave signal Arbitrary periodic waveform Generating a sinewave signal Generating accurate sinewave signal using timer interrupts Using The OLED Display Seconds counter Event counter DS18B20 OLED based digital thermometer ON-OFF temperature controller Measuring the temperature and humidity Ultrasonic distance measurement Height of a person (stadiometer) Heart rate (pulse) measurement Other Sensors Supplied with the Kit Theft alarm Sound-activated light Infrared obstacle avoidance with buzzer WS2812 RGB LED ring Timestamping temperature and humidity readings Network Programming Wi-Fi scanner Remote control from the Internet browser (using a smartphone or PC) – Web Server Storing temperature and humidity data in the Cloud Low-Power Operation Using a timer to wake up the processor

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Umfassendes Buch-Hardware-Bundle für den RP2040-Mikrocontroller mit über 80 Projekten Entdecken Sie in diesem Bundle das Potenzial der modernen Controller-Technologie mit dem Raspberry Pi Pico. Das leicht verständliche Handbuch eignet sich sowohl für Anfänger als auch für erfahrene Benutzer und führt Sie von den Grundlagen der Elektronik bis hin zu den komplexen Aspekten der digitalen Signalverarbeitung. Mit dem Raspberry Pi Pico, dem speziellen Hardware-Kit und der MicroPython-Programmierung lernen Sie die wichtigsten Prinzipien des Schaltungsdesigns, der Datenerfassung und -verarbeitung. Machen Sie praktische Erfahrungen mit über 80 Projekten wie einer Stoppuhr mit OLED-Display, einem Laser-Entfernungsmesser und einem servogesteuerten Lüfter. Diese Projekte sollen Ihnen helfen, das Gelernte in realen Szenarien anzuwenden. Das Buch behandelt auch fortgeschrittene Themen wie drahtlose RFID-Technologie, Objekterkennung und Sensorintegration für die Robotik. Ganz gleich, ob Sie Ihre Kenntnisse in der Elektronik erweitern oder tiefer in eingebettete Systeme eintauchen möchten, dieses Bundle ist die perfekte Ressource, um das volle Potenzial des Raspberry Pi Pico zu erkunden. Inhalt des Bundles 1x Projektbuch (287 Seiten) 1x Smart Car Kit Bauteile 2x Lötfreies Steckbrett (400 Löcher) 1x Lötfreies Steckbrett (170 Löcher) 5x bunte 5-mm-LEDs (Grün, Rot, Blau, Gelb und Weiß) 1x Lasersender 1x Passiver Summer 1x Micro-USB-Kabel (30 cm) 1x 65 Überbrückungskabel 1x 20 cm männlicher auf weiblicher Dupont-Draht 1x Transparentes Gehäuse 1x Magnet (Durchmesser: 8 mm, Dicke: 5 mm) 1x Drehpotentiometer 10x 2 KΩ Widerstände 2x M2, 5x30 mm Kupfersäulen 10x Kreuzschlitz-Flachkopfschrauben 10x M2,5 Sechskantmuttern aus Nickel 1x 2-Zoll-Mehrzweckschraubendreher Module 1x RGB-Modul 1x 9G-Servo 1x Dual-Achsen-XY-Joystick-Modul 1x RC522 RFID-Modul 1x 4-Bit-Digital-LED-Display-Modul 1x Ampel-Anzeigemodul 1x Drehgebermodul 1x 1602 LCD-Anzeigemodul (blau) 1x Fotowiderstandsmodul 1x Gleichstrommotor mit männlichem Dupont-Kabel 1x Lüfterflügel 1x Regentropfen-Modul 1x OLED-Modul 1x Membranschalter-Tastatur 1x Mini-Magnetfedermodul 1x Infrarot-Fernbedienung 1x Infrarot-Empfängermodul 1x DC-Schrittmotor-Treiberplatine 1x Button Sensoren 1x Vibrationssensor 1x Bodenfeuchtesensor 1x Schallsensor 1x Mini-PIR-Bewegungssensor 1x Temperatur & Feuchtigkeitssensor 1x Flammensensor 2x Crash-Sensor 2x Tracking-Sensor 1x Ultraschallsensor

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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! electronica Fast Forward Start- & Scale-Up AwardsDie Vorbereitungen laufen auf Hochtouren! Bluetooth Low Energy mit dem ESP32-C3 und ESP32Es muss nicht immer WLAN sein! Bluetooth-LE-SnifferMit dem makerdiary nRF52840 MDK USB-Dongle Magischer RGB-LED-WürfelHardware-Design rund um einen RP2040 Automatischer Ein/Ausschalter für Lötpastenkompressor Elektor - live und in FarbeLivestreams, Webinare und Kurse für Ingenieure und Maker Fahrrad elektrifizierenE-Bike-Nachrüstkit in der Praxis Aller Anfang ...Muss nicht schwer sein: Multiplikation von Spannungen Aus dem Leben gegriffenNebenbeschäftigungen Teensy 4.0 - warum ist das Board so schnell?Oder: Geschwindigkeit ist keine Hexerei! Simulation von Audio-Leistungsverstärkern mit TINADer „Try-Before-You-Build“-Ansatz LoRaWAN-Knoten im IoTEin Beispiel-Kapitel: Die LoRaWAN-Module Dragino LHT65, LDS01 und LDS02 Projekt 2.0Korrekturen, Updates und Leserbriefe 5G für mich alleinVollständige Kontrolle über 5G-Implementierungen in privaten Mobilfunknetzen Infographics 7-8/2022 Wie lernt mein Gerät funken?Applikationen mit WiFi-Schnittstellen ausrüsten Rheinturmuhr – Wecker de luxe Audio-Spektrum-Analysator mit DekatronsEine neue Art, alte Röhren zu verwenden Senden von Daten an TelegramEin ESP32 und ein paar Bauteile erledigen den Job32 and a Few Parts Fliege-Bandsperre für Audio-MessungenBesseres Messen durch Notch-Filterung CO2-Messgerät auseinandergenommenIst das Gerät hackbar für Ihre Projekte? Spielereien mit PUTsAnaloge Entwürfe mit dem Programmierbaren Unijunction-Transistor Ein runder Touchscreen für den Raspberry PiHyperPixel 2.1 Round von Pimoroni Fernwirken und die Erkennung von Verbindungsverlustenmit Hilfe von nRF24L01+ Modulen Digitaler UKW-EmpfängerMit Arduino Nano und TEA5767 OLED-Display - aus SPI mach I²C Zutritt für Unbefugte verboten!Ein Hobby geht nicht in Rente! Ein Jahrzehnt der Ethik in der ElektronikTessel Renzenbrink sinniert über die digitale Gesellschaft HexadokuSudoku für Elektroniker

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With this 65 W USB-C PD power supply (with GaN technology) you can start using the FNIRSI HS-01 soldering iron straight away. Of course, you can also use this charger to fast charge your tablets and smartphones via USB-C and USB-A. Included 65 W USB-C PD GaN Power Supply (EU)

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The Siglent SPD4121X is a 4-channel DC Linear Programmable Power Supply equipped with a 4.3-inch TFT-LCD display, friendly human-machine interface, and excellent performance indicators. Real-time waveform display provides engineers with an informative user interface. SPD4121X offers a total output power of 285 W with a resolution of 1 mV/1 mA. The maximum voltage and current for each channel are as follows: CH1: 15 V/1.5 A CH2: 12 V/10 A CH3: 12 V/10 A CH4: 15 V/1.5 A Features Rated output power: 285 W Rated voltage: 32 V, 12 V, 30 V Up to four high-precision power supplies with independent controllable outputs, supporting CH2 and CH3 series and parallel connections Clear graphical interface with waveform and timer display modes 5-digit voltage and current display with minimum resolution of 1 mV, 1 mA Fast output response time: <50us The high current channel support remote voltage compensation sense function. The maximum compensation voltage is 0.6 V Overvoltage protection and overcurrent protection or safe and accurate operation Equipped with a 4.3-inch TFT-LCD display (480 x 272 resolution) USB and LAN standard communication USB-GPIB module is optional Excellent channel density with up to 4 channels in a 3U half rack package Internal data storage for setups and parameters Embedded Web Server with instrument communication that doesn’t require software installation Fully SCPI programming command set support as well as a LabView driver for remote control and system automation Specifications SPD4323X SPD4121X SPD4306X Channel Output CH1: Voltage 0 to 6 V Current 0 to 3.2 ACH2: Voltage 0 to 32 V Current 0 to 3.2 ACH3: Voltage 0 to 32 V Current 0 to 3.2 ACH4: Voltage 0 to 6 V Current 0 to 3.2 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 12 V Current 0 to 10 ACH3: Voltage 0 to 12 V Current 0 to 10 ACH4: Voltage 0 to 15 V Current 0 to 1.5 A CH1: Voltage 0 to 15 V Current 0 to 1.5 ACH2: Voltage 0 to 30 V Current 0 to 6 ACH3: Voltage 0 to 30 V Current 0 to 6 ACH4: Voltage 0 to 15 V Current 0 to 1 A Resolution 1 mV, 1 mA 1 mV, 1 mA 1 mV, 1 mA Setting Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Readback Accuracy Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Voltage: ±(0.03% of reading+10) mV, Current: ±(0.3% of reading+10) mA Display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display 4.3" TFT-LCD 5-digit voltage and current display Output power 240 W 285 W 400 W Included 1x Siglent SPD4121X Power Supply 1x Power cord (EU) 1x Output test cord (3 A) 1x USB cable 1x Quick start guide Downloads Datasheet Manual Quick start

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AI Projects for the Raspberry Pi with the AI HAT+ Edge AI is transforming everyday devices by putting intelligence where it matters most: directly inside the hardware. With on-device inference, a camera can recognize a visitor instantly, a phone can translate speech without streaming audio to the cloud, and a wearable can detect anomalies in real time—fast, private, and reliable even when the network disappears. This book is your practical guide to building exactly those kinds of systems with the Raspberry Pi AI HAT+ and the Hailo-8L accelerator. You’ll start with clear foundations: core AI and machine-learning concepts, how neural networks work, and what truly distinguishes Edge AI from cloud AI—plus an honest look at ethical considerations and future impacts. Then it’s straight to hands-on physical computing. Step by step, you’ll set up Raspberry Pi OS, power and cooling, and develop in Python using the Thonny IDE. You’ll learn GPIO basics with lights and servos, mount the AI HAT+ hardware, install and verify the Hailo software stack, and connect the right camera—official modules or USB webcams, even multiple cameras. From your first pipeline to real projects, you’ll run person detection, pose estimation, segmentation, and depth estimation, then level up with YOLO object detection: smart alerts, guest counters, and custom extensions. You’ll even connect vision to motion by combining gesture recognition with servo-driven mechanisms, including a robotic arm. With troubleshooting tips, hardware essentials, and a practical Python refresher, this book turns Edge AI from buzzword into buildable reality.

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Multilingual DIY Kit (incl. 27 RGB LEDs + Raspberry Pi Pico) Bring some engineering magic to your festive season with the Wordy LED Christmas Tree, a unique DIY electronics kit designed by Elektor. This beautifully engineered 3D Christmas tree combines eleven PCBs, a Raspberry Pi Pico, and 27 addressable RGB LEDs to illuminate Christmas greetings in seven languages: Danish, Dutch, English, French, German, Italian, and Spanish. Unlike ordinary LED trees, each word inside the tree has its own light chamber, creating a refined, softly glowing display without sound or flicker. The LEDs are fully WS2812-compatible and driven via the popular Adafruit NeoPixel library, making custom animations and color effects easy to create. Perfect for makers, tinkerers, and festive electronics fans, this kit offers both an enjoyable build and a striking, conversation-worthy decoration. The Wordy Christmas Tree is your perfect holiday maker project! Features Multilingual greetings (7 languages) milled into the front panel 3D construction from 11 interlocking PCBs Powered by Raspberry Pi Pico 27 individually addressable RGB LEDs (pre-mounted) Smooth fade-in and fade-out animations Fully programmable using the Arduino IDE A 5-V power supply (with micro-USB connector) capable of ≥1 A is recommended for maximum brightness (not included) Dimensions (H x W x D): 130 x 115 x 75 mm Included All required PCBs with LEDs and other SMD parts mounted Raspberry Pi Pico (to be soldered & programmed by the user) 3-way pin header (to be soldered by the user) 3-way pin socket (to be soldered by the user) 4x Self-adhesive dome bumpers Project Page Elektor Labs

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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden. Nog geen lid? Klik hier om een lidmaatschap af te sluiten. USB-meetadaptertest stroom en signaalkwaliteit van USB-poorten 4...20 mA stroom-uitgang voor Arduino Unobetrouwbare, EMI-ongevoelige current loop-interface Automatische stofzuigerschakelaarhoud uw werkplek schoon DDS-generator met ATtiny Opamp-tester v2nieuwe print – nu ook voor SMD’s 550-mW audio ‘Lamp-Amp’voor die warme buizenklank Zekeringbewakerhoud zekeringen in de gaten met een knipper-LED Hoogwaardige RIAA-voorversterkerhaal het beste uit uw vinylplaten! Kalibratie voor draaitafelsArduino-gebaseerde 100/120Hz-stroboscoop Elektor Classics: Video-versterker Dimmer met IR-afstandsbedieningcomfortabel en elegant staande halogeen- of LED-lampen regelen Het gebruik van switch…case bij strings in C++/Arduino IDE Magneetzoekermet een eenvoudige Hall-effect-sensor Raspberry Pi: slimme aan/uit-knopeen oplossing voor de Raspberry Pi tot aan model 4 Professionele tipsvan makers voor makers Praktische projecten met de 555-timerDC-motorbesturing en snelle reactie-uitdaging Eenvoudige ‘aan-verklikker’spaar energie met een simpele schakeling Powerpacks parallelschakelendrie dagen ononderbroken stroom VFO tot 15 MHzimplementatie met Raspberry Pi Pico Vioolstemmer met ATtiny202 Elektor Classics: Video-ingangsversterker voor zwart/wit-TV Capaciteitsmeter20 pF tot 600 nF Quasi-analoog uurwerk Mk IItwee LED-ringen – voor uren en minuten Niets is onmogelijk(met hulp van het Arduino-ecosysteem) Neon dobbelsteen Elektor Classics: RTTY-afstemhulp Inspirerende hardware-ontwerpen voor uw ESP’s Elektor Classics: 3 A voeding RGB-LED’s met geïntegreerde stuurkringlicht met precisie: ICLED’s zetten de standaard Experiment: een mixed-signal Theremin?moderne time-of-flight sensoren plus de tijdloze analoge XR2206 ESP32 audio-transceiver (deel 1)SD-kaart WAV-speler demo Elektor infographicschakelingen en schakelingontwerp 2025 Kleine audiomixereenvoudig, veelzijdig en schaalbaar Slimme timer voor trapverlichtingbespaar op uw energierekening! Maak uw rolluiken slimmerVelux-hardware besturen met een ESP32 en MQTT Solid-state voetenwarmercomfortabel en energiezuinig Is de M5Stamp Fly-quadcopter de nieuwe Tello? Vergroot het WiFi-bereik van de ESP32-C3 SuperMinieenvoudige en effectieve antennemodificatie ZD-8968 hetelucht-soldeerstationbudgetvriendelijk werkpaard of gebakken lucht? Parkeersensor-testervind defecten in het PDC-systeem van een auto

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Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten. Cloc 2.0de wekker die je altijd al wilde hebben PIO in de praktijkexperimenten met de programmeerbare I/O van de RP2040 Armeluis chiptweakerwe krijgen je wel (goedkoop) aan de praat... Echte USB-toevalsgeneratortwee PIC’s voor de prijs van één AVR Pimp my mike...opvoeren doe je zelf FFT met Maixduinofrequentiespectra vastleggen Uit het leven gegrepenontwerp(on)logica UCN5804 stappenmotordrivervreemde onderdelen Simuleren met Micro-Capeerste stappen in een complexe wereld PAUL Award 2022jonge technische talenten en hun creatieve ontwerpen Mijn eerste Software Defined Radioin minder dan 15 minuten klaar Microcontroller-documentatie verklaarddeel 1: de opzet van een datasheet Hoe verder met AI en embedded systems?tools, platforms – en worden schrijvers obsoleet? Digitalisering van verticale landbouw Elektor Infographicsembedded en AI vandaag – en morgen Een introductie tot TinyML Casestudy KwickPOS High-performance in elke klassecomputer-on-module standaarden Alle begin......wordt eindelijk actief! I²C-communicatie met Node.js en een Raspberry Pibekijk sensordata in een browser Video-output met microcontrollers (2)VGA en DVI Het Metronom real-time besturingssysteemeen RTOS voor AVR-processoren DVI op de RP2040vraaggesprek met Luke Wren, chipontwikkelaar bij Raspberry Pi Display-HAT Minitoont het weer op de Raspberry Pi De WEEF 2022 Awardshet goede vieren Hexadoku

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