Le Elektor Audio DSP FX Processor combine un microcontrôleur ESP32 et un DSP Audio ADAU1701 d'Analog Devices. Outre un noyau DSP programmable par l'utilisateur, l'ADAU1701 intègre des convertisseurs analogique-numérique et numérique-analogique de haute qualité et dispose d'un port I²S. Cela le rend approprié comme interface audio de haute qualité pour l'ESP32.
Les programmes pour l'ESP32 peuvent être créés avec Arduino, Platform IO, CMake ou en utilisant Espressif IDF d'une autre manière. Les programmes pour les DSP audio ADAU7101 sont créés avec l'outil de programmation visuelle gratuit SigmaStudio en glissant et déposant des blocs d'algorithmes prédéfinis sur un canevas.
Applications
Sink audio Bluetooth/Wi-Fi (par ex. haut-parleur) et source
Pédale d'effet guitare (stomp box)
Synthétiseur musical
Générateur de sons/fonctions
Filtre cross-over programmable pour haut-parleurs
Processeur d'effets audio avancé (réverbération, chorus, pitch shifting, etc.)
Appareil audio connecté à Internet
Plate-forme d'expérimentation DSP
MIDI sans fil
Convertisseur MIDI vers CV
et bien d'autres...
Spécifications
Processeur audio numérique ADAU1701 28/56 bits, 50 MIPS prenant en charge des taux d'échantillonnage allant jusqu'à 192 kHz
Microcontrôleur double cœur ESP32 32 bits avec Wi-Fi 802.11b/g/n et Bluetooth 4.2 BR/EDR et BLE
2 entrées audio 24 bits (2 V RMS, 20 kΩ)
4 sorties audio 24 bits (0,9 V RMS, 600 Ω)
4x potentiomètres de contrôle
Entrée et sortie MIDI
Port d'extension I²C
Fonctionnement multimode
Alimentation : USB 5 V CC ou 7,5-12 V CC (prise cylindrique, broche centrale GND)
Consommation de courant (moyenne) : 200 mA
Inclus
1x Carte Audio DSP FX Processor (assemblée)
1x ESP32-PICO-KIT
2x Cavaliers
2x Connecteurs à 18 broches (female)
4x Potentiomètres de 10 Ko
Téléchargements
Documentation
GitHub
Caractéristiques
Câble de type C
USB type C convient à la nouvelle version Raspberry Pi 4
Pas besoin de tirer sur le câble pour redémarrer ou redémarrer votre Pi, appuyez simplement sur le bouton pour allumer et éteindre votre Pi
Peut être utilisé comme alimentation pour le Pi jusqu'à 2 Ampères
Aide à prévenir l'usure du connecteur USB du Pi due à la traction et à l'insertion fréquentes du câble USB.
Caractéristiques
Interface : USB Type-C Courant : 3 A
Longueur : 1,5 m
Utiliser pour: Raspberry Pi 4 modèle B
Liste de colisage : 1x câble d’alimentation USB Type C
In Get Started with MicroPython on Raspberry Pi Pico, you will learn how to use the beginner-friendly language MicroPython to write programs and connect up hardware to make your Raspberry Pi Pico interact with the world around it. Using these skills, you can create your own electro‑mechanical projects, whether for fun or to make your life easier.
Microcontrollers, like RP2040 at the heart of Raspberry Pi Pico, are computers stripped back to their bare essentials. You don’t use monitors or keyboards, but program them to take their input from, and send their output to the input/output pins.
Using these programmable connections, you can light lights, make noises, send text to screens, and much more. In Get Started with MicroPython on Raspberry Pi Pico, you will learn how to use the beginner-friendly language MicroPython to write programs and connect up hardware to make your Raspberry Pi Pico interact with the world around it. Using these skills, you can create your own electro‑mechanical projects, whether for fun or to make your life easier.
The robotic future is here – you just have to build it yourself. We’ll show you how.
About the authors
Gareth Halfacree is a freelance technology journalist, writer, and former system administrator in the education sector. With a passion for open-source software and hardware, he was an early adopter of the Raspberry Pi platform and has written several publications on its capabilities and flexibility.
Ben Everard is a geek who has stumbled into a career that lets him play with new hardware. As the editor of HackSpace magazine, he spends more time than he really should experimenting with the latest (and not-solatest) DIY tech.
This collection features the best of Elektor Magazine's articles on embedded systems and artificial intelligence. From hands-on programming guides to innovative AI experiments, these pieces offer valuable insights and practical knowledge for engineers, developers, and enthusiasts exploring the evolving intersection of hardware design, software innovation, and intelligent technology.
Contents
Programming PICs from the Ground UpAssembler routine to output a sine wave
Object-Oriented ProgrammingA Short Primer Using C++
Programming an FPGA
Tracking Down Microcontroller Buffer Overflows with 0xDEADBEEF
Too Quick to Code and Too Slow to Test?
Understanding the Neurons in Neural NetworksEmbedded Neurons
MAUI Programming for PC, Tablet, and SmartphoneThe New Framework in Theory and Practice
USB Killer DetectorBetter Safe Than Sorry
Understanding the Neurons in Neural NetworksArtificial Neurons
A Bare-Metal Programming Guide
Part 1: For STM32 and Other Controllers
Part 2: Accurate Timing, the UART, and Debugging
Part 3: CMSIS Headers, Automatic Testing, and a Web Server
Introduction to TinyMLBig Is Not Always Better
Microprocessors for Embedded SystemsPeculiar Parts, the Series
FPGAs for BeginnersThe Path From MCU to FPGA Programming
AI in Electronics DevelopmentAn Update After Only One Year
AI in the Electronics LabGoogle Bard and Flux Copilot Put to the Test
ESP32 and ChatGPTOn the Way to a Self-Programming System…
Audio DSP FX Processor Board
Part 1: Features and Design
Part 2: Creating Applications
Rust + EmbeddedA Development Power Duo
A Smart Object CounterImage Recognition Made Easy with Edge Impulse
Universal Garden LoggerA Step Towards AI Gardening
A VHDL ClockMade with ChatGPT
TensorFlow Lite on Small MicrocontrollersA (Very) Beginner’s Point of View
Mosquito DetectionUsing Open Datasets and Arduino Nicla Vision
Artificial Intelligence Timeline
Intro to AI AlgorithmsPrompt: Which Algorithms Implement Each AI Tool?
Bringing AI to the Edgewith ESP32-P4
The Growing Role of Edge AIA Trend Shaping the Future
Pixy2 can be taught to detect objects by the press of a button. It is equipped with a new line detection algorithm to use on line-following robots. It can learn to recognize intersection and follow road signs.
Pixy2 comes with various cables so that you can connect it with an Arduino or a Raspberry Pi out of the box. Furthermore, the I/O port offers several interfaces (SOI, I²C, UART, USB) to plug your Pixy2 in most boards.
Downloads
Documentation
Projects
Software
32 new Projects, Practical Examples and Exercises with the Elektor Arduino Nano MCCAB Training Board
Electronics and microcontroller technology offer the opportunity to be creative. This practical microcontroller course provides you with the chance to bring your own Arduino projects and experience such moments of success. Ideally, everything works as you imagined when you switch it on for the first time. In practice, however, things rarely work as expected. At that point, you need knowledge to efficiently search for and find the reason for the malfunction.
In this book for advanced users, we delve deep into the world of microcontrollers and the Arduino IDE to learn new procedures and details, enabling you to successfully tackle and solve even more challenging situations.
With this book, the author gives the reader the necessary tools to create projects independently and also to be able to find errors quickly. Instead of just offering ready-made solutions, he explains the background, the hardware used, and any tools required. He sets tasks in which the reader contributes their own creativity and writes the Arduino sketch themselves.
If you don’t have a good idea and get stuck, there is, of course, a suggested solution for every project and every task, along with the corresponding software, which is commented on and explained in detail in the book.
This practical course will teach you more about the inner workings of the Arduino Nano and its microcontroller. You will get to know hardware modules that you can use to realize new and interesting projects. You will familiarize yourself with software methods such as ‘state machines,’ which can often be used to solve problems more easily and clearly.
The numerous practical projects and exercise sketches are once again realized on the Arduino Nano MCCAB Training Board, which you may already be familiar with from the course book ‘Microcontrollers Hands-on Course for Arduino Starters’, and which contains all the hardware peripherals and operating elements we need for the input/output operations of our sketches.
Readers who do not yet own the Arduino Nano MCCAB Training Board can purchase the required hardware separately, or alternatively, build it on a breadboard.
Ce programmeur a été spécialement conçu pour graver des bootloaders (sans ordinateur) sur les cartes de développement ATmega328 compatibles Arduino.
Branchez simplement le programmeur sur l'interface ICSP pour graver à nouveau le chargeur de démarrage. Il est également compatible avec les nouvelles puces, à condition que le circuit intégré soit fonctionnel.
Remarque : graver un chargeur de démarrage efface toutes les données précédentes de la puce.
Caractéristiques
Tension de fonctionnement : 3,1-5,3 V
Courant de fonctionnement : 10 mA
Compatible avec les cartes basées sur Arduino Nano (ATmega328)
Dimensions : 39,6 x 15,5 x 7,8 mm
Ce programmeur a été spécialement conçu pour graver des bootloaders (sans ordinateur) sur les cartes de développement ATmega328P/ATmega328PB compatibles Arduino.
Branchez simplement le programmeur sur l'interface ICSP pour graver à nouveau le chargeur de démarrage. Il est également compatible avec les nouvelles puces, à condition que le circuit intégré soit fonctionnel.
Remarque : graver un chargeur de démarrage efface toutes les données précédentes de la puce.
Caractéristiques
Tension de fonctionnement : 3,1-5,3 V
Courant de fonctionnement : 10 mA
Compatible avec les cartes basées sur Arduino Uno R3 (ATmega328P ou ATmega328PB)
Dimensions : 39,6 x 15,5 x 7,8 mm
Ready-to-use devices and self-built Arduino nodes in the 'The Things Network'
LoRaWAN has developed excellently as a communication solution in the IoT. The Things Network (TTN) has contributed to this. The Things Network was upgraded to The Things Stack Community Edition (TTS (CE)). The TTN V2 clusters were closed towards the end of 2021.
This book shows you the necessary steps to operate LoRaWAN nodes using TTS (CE) and maybe extend the network of gateways with an own gateway. Meanwhile, there are even LoRaWAN gateways suitable for mobile use with which you can connect to the TTN server via your cell phone.
The author presents several commercial LoRaWAN nodes and new, low-cost and battery-powered hardware for building autonomous LoRaWAN nodes. Registering LoRaWAN nodes and gateways in the TTS (CE), providing the collected data via MQTT and visualization via Node-RED, Cayenne, Thingspeak, and Datacake enable complex IoT projects and completely new applications at very low cost.
This book will enable you to provide and visualize data collected with battery-powered sensors (LoRaWAN nodes) wirelessly on the Internet. You will learn the basics for smart city and IoT applications that enable, for example, the measurement of air quality, water levels, snow depths, the determination of free parking spaces (smart parking), and the intelligent control of street lighting (smart lighting), among others.
Si vous cherchez un moyen simple de vous lancer dans la soudure ou si vous souhaitez simplement fabriquer un petit gadget portable, cet ensemble est une excellente opportunité. "LED cube" est un ensemble éducatif pour apprendre les techniques de soudure, avec lequel vous obtenez à la fin un petit jeu électronique. Après avoir allumé et secoué cette planche, certaines LED s'allumeront de manière aléatoire et symboliseront le numéro, comme si un vrai chiffre avait été lancé.
Il est basé sur le microcontrôleur Attiny404, programmé dans Arduino, et il y a une batterie à l'arrière qui rend ce gadget portable. Il y a aussi un porte-clés pour que vous puissiez toujours emporter votre nouveau jeu avec vous ! La soudure est facile selon les marquages sur la carte.
Inclus
1x carte de circuit imprimé
1x microcontrôleur ATtiny404
7x LED
7x résistances (330 ohms)
1x résistance (10 kohm)
1x support de batterie
1x pile CR2032
1x interrupteur
1x capteur de vibrations SW-18020P
1x anneau porte-clés
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Lire la suite
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par Beatriz Sousa
Nous sommes ravis!
Nous sommes heureux d'annoncer que la nouvelle boutique Elektor ( www.elektor.nl) est désormais en ligne ! Les mises à jour de notre boutique sont le...