Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
OBD2 Sensor DashboardOld Dials Sparked a Quest for Real Data
OBD2: Add a Rev Counter and Gear Shift Indicator to Your CarRetro, but Super Useful
LiDAR and Vision Sensors for Robotics
Sensor+Test 2025 and PCIM 2025
Contact-Free E-Field Measurements (1)A Vibrating Membrane for Assessing DC Voltages or Static Electric Fields
Wireless Mailbox NotifierFrom Optical Sensors to Radar, Exploring a Few Options
Elektor Mini-WheelieA Self-Balancing Robot
Solar CellsPeculiar Parts, the Series
Getting Started With a Modern Radar SensorIs an Accurate Measurement on Your Radar?
From Life’s ExperiencePaper Factory
CybersecurityTough Times for Hackers
Siglent Presents Next-Gen Multi-Channel OscilloscopesHigh-Performance Solutions for Modern Power and Embedded Systems
Bluetooth 6.0 Brings Enhanced Distance-Ranging ApplicationsNew Version Offers Improved Device Positioning and Location Services
Exploring Wireless Communication with BeagleY-AI
Err-lectronicsCorrections, Updates, and Readers’ Letters
Starting Out in Electronics……Concludes the Topic on Opamps
A Powerful AI Code AssistantSpeed Up Your Development with Continue and Visual Studio Code
Solar Charge Controller with MPPT (2)The Circuit
Ultrasonic Obstacle DetectorA Simple Project to Help Those with Impaired Vision
2025: An AI OdysseyMid-Year Review
Raspberry Pi Standalone MIDI Synthesizer (3)Making It Smarter and Adding a User Interface
Meshtastic: A Demo ProjectAn Intelligent Mesh of LoRa Radios
Analog Audio Frequency GeneratorHigh-Quality Adjustable Frequency Sine Wave Generator
Machen Sie Ihre Träume wahr und verwirklichen Sie die schwierigsten Projekte: einen Kilometerzähler für die Lauffläche Ihres Hamsters, eine vollständig automatisierte Überwachung Ihres Mediums mithilfe einer Webschnittstelle oder dem Sandwich-O-Mat? eine Maschine, die die Sandwiches Ihrer Wahl grillt.
Mit Arduino-Karten und der DIY-Bewegung („mach es selbst“) oder MakerBot wird das Programmieren von Mikrocontrollern zum Kinderspiel. An dieser Stelle findet eine zweite Revolution in der EU statt: Werden die Ingenieure auf dem Markt für Kleinkarten fündig? Angerufene „Shields“ oder Module? Dies vereinfacht die Nutzung anderer Geräte erheblich. Diese kleinen Module enthalten alle für die Verbindung zum Mikrocontroller erforderlichen elektronischen Komponenten. Einige Filamente mit ausreichenden Datenblättern reichen für die Zuordnung aus. Dies muss verkabelt werden und die Zeit wird knapp. Darüber hinaus ist es auch möglich, winzige Komponenten mithilfe von Verbindungsmustern (z. B. vom Typ CMS) zu manipulieren.
Projekte
Arduino und die Außenwelt
Capteur BMP180, Einführung in Bibliotheken und zu l?I²C
Einführung in Ein- und Ausgänge mit einem polyvalenten Schild
I²C-Adapter für LCD und Punktmatrixanzeigen
Schild Tastatur & LCD
Niveauumrechner
W5100: Internetverbindung
Schilde zur Verlängerung von Ein- und Ausgängen
Relais und Relais-Statistiken
Multifunktionsschild: universelle Befehlseinheit
Verbindung eines SD-Kartenlesers über SPI herstellen
Berührungen und Anzeigen mit 7 Segmenten
Analog-/Numerischer Konverter zu 16 Bit
Numerischer/analoger Konverter MCP4725
16-Wege-PWM-Servomotorsteuerung
MP3-Lesegerät
GPS-Datenspeicherung mit SD-Kartenspeicher
Taktiler Sensor
Joystick
SHT31: Temperatur und Luftfeuchtigkeit
UV-A-Sensor VEML6070
Flugzeit VL53L0X
Ultraschall-Abstandsmessung
LED-Matrizenanzeige mit MAX7219-Sockel
Echte Zeituhr DS3231
Anschlusserweiterungsschaltung MCP23017
Kommunikationsfunk à 433 MHz
Gyroskop MPU-6050
Beschleunigungsmesser ADXL345
LED RVB WS2812
Ernährungskarten
Gassensoren MQ-xx
Kohlendioxid-Abscheider (CO2)
Stromsensor ACS712
Stromsensor INA219
Motorsteuerung L298
RFID-Kit MFRC522
Nicht passender Motor 28BYJ-48
Karte mit ultra-leiser Motorsteuerung TMC2209
Numerisches Potentiometer X9C10x
TFT-Farbbildschirm mit Controller/Steuerung ST7735
Elektronischer Scharfschreiber
Modul Bluetooth
Compteur Geiger
Modul GSM SIM800L
I²C-Multiplexer
Modul CAN (Controller Area Network)
Hands-on in more than 50 projects
STM32 Nucleo family of processors are manufactured by STMicroelectronics. These are low-cost ARM microcontroller development boards. This book is about developing projects using the popular STM32CubeIDE software with the Nucleo-L476RG development board. In the early Chapters of the book the architecture of the Nucleo family is briefly described.
The book covers many projects using most features of the Nucleo-L476RG development board where the full software listings for the STM32CubeIDE are given for each project together with extensive descriptions. The projects range from simple flashing LEDs to more complex projects using modules, devices, and libraries such as GPIO, ADC, DAC, I²C, SPI, LCD, DMA, analogue inputs, power management, X-CUBE-MEMS1 library, DEBUGGING, and others. In addition, several projects are given using the popular Nucleo Expansion Boards. These Expansion Boards plug on top of the Nucleo development boards and provide sensors, relays, accelerometers, gyroscopes, Wi-Fi, and many others. Using an expansion board together with the X-CUBE-MEMS1 library simplifies the task of project development considerably.
All the projects in the book have been tested and are working. The following sub-headings are given for each project: Project Title, Description, Aim, Block Diagram, Circuit Diagram, and Program Listing for the STM32CubeIDE.
In this book you will learn about
STM32 microcontroller architecture;
the Nucleo-L476RG development board in projects using the STM32CubeIDE integrated software development tool;
external and internal interrupts and DMA;
DEBUG, a program developed using the STM32CubeIDE;
the MCU in Sleep, Stop, and in Standby modes;
Nucleo Expansion Boards with the Nucleo development boards.
What you need
a PC with Internet connection and a USB port;
STM32CubeIDE software (available at STMicroelectronics website free of charge)
the project source files, available from the book’s webpage hosted by Elektor;
Nucleo-L476RG development board;
simple electronic devices such as LEDs, temperature sensor, I²C and SPI chips, and a few more;
Nucleo Expansion Boards (optional).
This book is all about building your own DIY home control system. It presents two innovative ways to assemble such a system: By recycling old PC hardware – possibly extending the life of an old PC, or by using Raspberry Pi. In both cases, the main system outlined in this book will consist of a computer platform, a wireless mains outlet, a controller and a USB webcam – All linked together by Linux.
By using the Raspberry Pi in conjunction with Arduino (used as an advanced I/O system board), it is possible to construct a small, compact, embedded control system offering enhanced capacity for USB integration, webcams, thermal monitoring and communication with the outside world.
The experience required to undertake the projects within this book are minimal exposure to PC hardware and software, the ability to surf the internet, burn a CD-ROM and assemble a small PCB.
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
Tiny Solar SupplySunlight In, 3.3 V Out
Solid-State Stereo Audio SwitchFree of Clicks and Moving Parts
Large RGB DigitWith Through-Hole WS2812 LEDs
Microphone Preamplifier with 48-V Phantom Power DistributionGreat for Podcasting and Pro Audio
Square Wave Generators with Duty Cycle and Frequency ControlsSimple Circuits with CMOS and TTL ICs
Simple Dynamic CompressorWith Soft Control and Warm Sound
Simple Electronic Lock
Active RectifierA solution or 2…40 V at up to 3 A with Reverse Current Suppression
On / Off Switching System for Active Boxes
Unbalanced/Balanced ConverterWith RFI Filter and DC Protection
2023: An AI OdysseyWhere Did It Come From? Where Is It Going?
Speed Controller for Fan or VentilatorWith Manual and Thermostat Modes
The Latest from Arduino Project HubNew Projects from the Community
Power Overload MonitorMonitor Power Lines for Excessive Current
Blink in the Dark Without TransistorsAn Oscillator with Only Two-Terminal Parts
Morse Code GeneratorUse It as Beacon or Learning Device!
Programmable Video DACHandles Any Format up to RGB888
A T(eeny) Tiny PianoWithout Moving Parts
Dual Dice without MCUDual Dice on a Single PCB – Plus Some Design Tricks
Electronic Scarecrow
Circuits to Amuse, Inspire, and Amaze
LC-LP-HA ThermometerAccurate Measurements and a Binary Display
THD GeneratorGenerating Distortion on Purpose
Thyristor-Based Overtemperature IndicatorElectronic Components Used Unconventionally
PTC Fuse Flip-Flop
Funny BirdA Chirping Elektor Classic
Neon Lamp with a Microcontroller
Temperature-Stabilized IC Current SourceNeutralizing the Temperature Drift of Integrated Current Sources
Second-Order Adjustable Treble BoostA Special Hearing Aid for the Elderly
Edwin Comes HomeA Look Back After 53 Years
One-Armed BanditA Simple, Fun, Nostalgic, and Educational Elektor Classic!
Simple Digitally Controlled Variable Resistor
Water Leak ProtectionSafeguard and Alarm for Water Leaks
Eco-Timer with Auto-ShutdownNeeds 0.0 mW in Off Mode!
ChatGPT and Arduino
ZD MeterMeasuring Z Voltages of Z Diodes ≤ 100 V
Servo Tester
ESP32 Windows Controller with Free Software
Analog and Mixed-Signal ICs by MicrochipLow-Consumption Power Management and Signal Processing
Interface StandardsFilter and Surge Protection for the I²C Bus
Li-Ion Battery MonitorResidual Charge Indicator Provides Visual Feedback
PS/2 Mouse As Rotary Encoder (and More…)
Simple Twilight Switchfor Retrofitting Lamps or Installations
Water Pump ControllerPrepare Yourself Against Rising Water Levels
Solar-Powered Christmas FM Radio BallAll You Want for Christmas Is This
Vibration Sensor with RelayTap or Shake to Switch On
Continuity TesterSensitive and Unintrusive
Power On/Off with a Pushbutton
Mini-Drill Power Control 2023A Revision of a Design from 1980
Digital Vibration SensorTurn Vibrations into Precisely Timed Pulses
Reverse-Polarity Protection with Low Voltage Drop
A Low-Cost Frequency Standard
Tiny DCF77 SimulatorAn Accurate Fake-Time Standard
The Lilygo T-PicoC3Combines RP2040 and ESP32-C3 with Full Color-TFT Display
Die freihändigen PCBite-Tastköpfe der SQ-Serie von Sensepeek sind isoliert, werden mit farbcodierten Kabelhaltern geliefert und haben einen niedrigeren Schwerpunkt, wodurch sie im Vergleich zu den Sonden der ursprünglichen SP-Serie noch stabiler sind. Alle beliebten Funktionen der freihändigen Messung, die austauschbare Prüfnadel mit feiner Steigung und das minimalistische Design werden beibehalten, um herkömmliche und handgehaltene Sonden überflüssig zu machen.
Features
Alle freihändigen Tastköpfe von Sensepeek machen sofortige Messungen oder lange Triggersitzungen zum Kinderspiel.
Keine Lötdrähte mehr zum Anschließen Ihres Tastkopfs oder komplizierte Werkzeuge zum Einrichten, sondern einfach die Sondennadel auf einem beliebigen Testpunkt oder einer beliebigen Komponente im Signalpfad positionieren und loslassen.
Spart Zeit und Frust bei der Entwicklung, Überprüfung und Reparatur.
Das minimalistische Design und die federbelastete Prüfnadel ermöglichen die gleichzeitige Messung von Fine-Pitch-Komponenten und nahegelegenen Signalen.
Sowohl Länge als auch Gewicht der SQ-Tastköpfe sind perfekt ausbalanciert, um mit den mitgelieferten PCB-Haltern und der Grundplatte verwendet zu werden, was ein Muss für die Freisprechfunktion ist.
Der Sondenhalter wird wie alle PCBite-tastköpfe und -Halter mit einem starken Magneten in der Basis geliefert, wodurch die Tastköpfe leicht zu platzieren und neu zu positionieren ist.
Die Tastköpfe der SQ-Serie können ohne den Sondenhalter in der Hand verwendet werden, da sie einen isolierten Griff haben, aber ihr volles Potenzial wird beim Freihandmessen genutzt.
Eine Seite der mitgelieferten Grundplatte ist matt und die andere hochglanzpoliert. Die hochglanzpolierte Oberfläche macht es einfach, Komponenten auf der Unterseite der Leiterplatte zu sehen. Für zusätzlichen Schutz während der Messung kann die mitgelieferte Isolierabdeckung auf einer der Oberflächen montiert werden.
Lieferumfang
4x PCBite Platinenhalter
1x Satz gelbe Isolierscheiben für die Platinenhalter
1x große Grundplatte (A4)
1x Isolierabdeckung für die Bodenplatte (A4)
1x Mikrofasertuch
4x SQ10 Tastköpfe und Prüfnadeln mit Stiftspitze (schwarz)
2x Bananen-zu-Dupont-Prüfkabel (rot/schwarz)
5x Dupont-zu-Dupont-Prüfkabel
1x Kabelhalter-Set (4 Farben)
4x Extra Testnadeln
Downloads
User guide (PCBite kit)
User guide (SQ10 probes)
Your First Steps with an ESP32-C3 and the IoTA Wi-Fi Button and Relay IoT Cloud a la Arduino
Dual Geiger-Müller Tube Arduino ShieldA High Sensitivity, Very Low-Power Radiation Sensor
CO2 GuardA DIY Approach to Monitoring Air Quality
MonkMakes Air Quality Kit for Raspberry PiMeasures Temperature and eCO2
Starting Out in ElectronicsWelcome to the Diode
Tips & Tricks for Testing ComponentsNo Expensive Equipment Required
Reducing the Power Consumption of Your Mole RepellerAn ATtiny13 Replaces a 555
Light Switch DeLuxA Solution for High-Precision Light-Controlled Switching
The Challenges in Bringing IoT Solutions to MarketWorries Around Security, Scalability, and Competition Infographics 5-6/2022
Preferably Wired After AllTips for Developing a 1 Gbit/s Interface in an Industrial Environment Bringing Real-Time Object Detection to MCUs with Edge Impulse FOMO
Traveling-Wave TubesPeculiar Parts, the Series
Narrowband Internet of ThingsStandards, Coverage, Agreements, and Modules
Dragino LPS8 Indoor GatewaySpeedy LoRaWAN Gateway Setup
Explore ATtiny Microcontrollers Using C and Assembly LanguageSample Chapter: ATtiny I/O Ports
Err-lectronicsCorrections, Updates and Readers’ Letters
LoRa GPS Tracker UpdateReceive and Show Location Using a Raspberry Pi
Circuit Simulation with TINA Design Suite & TINACloudSample Chapter: Sinusoidal Oscillators
From Life’s ExperienceAssembly Line Work
The WinUI Graphics Framework for Windows AppsA Small Demo Application
GUIs with PythonWorst GUI of the world
Off-Grid Solar SystemsElectrical Energy Independent of the Mains Grid
The 10-Year SmartphoneRenew Your Expectations
HexadokuThe Original Elektorized Sudoku
Practical Multitasking Fundamentals
Programming embedded systems is difficult because of resource constraints and limited debugging facilities. Why develop your own Real-Time Operating System (RTOS) as well as your application when the proven FreeRTOS software is freely available? Why not start with a validated foundation?
Every software developer knows that you must divide a difficult problem into smaller ones to conquer it. Using separate preemptive tasks and FreeRTOS communication mechanisms, a clean separation of functions is achieved within the entire application. This results in safe and maintainable designs.
Practicing engineers and students alike can use this book and the ESP32 Arduino environment to wade into FreeRTOS concepts at a comfortable pace. The well-organized text enables you to master each concept before starting the next chapter. Practical breadboard experiments and schematics are included to bring the lessons home. Experience is the best teacher.
Each chapter includes exercises to test your knowledge. The coverage of the FreeRTOS Application Programming Interface (API) is complete for the ESP32 Arduino environment. You can apply what you learn to other FreeRTOS environments, including Espressif’s ESP-IDF. The source code is available from GitHub. All of these resources put you in the driver’s seat when it is time to develop your next uber-cool ESP32 project.
What you will learn:
How preemptive scheduling works within FreeRTOS
The Arduino startup “loopTask”
Message queues
FreeRTOS timers and the IDLE task
The semaphore, mutex, and their differences
The mailbox and its application
Real-time task priorities and its effect
Interrupt interaction and use with FreeRTOS
Queue sets
Notifying tasks with events
Event groups
Critical sections
Task local storage
The gatekeeper task
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
Relio v1.0 - Presence Detection and Remote ControlA Matter-Enabled Smart Controller for AC Appliances
Designing Better PCBsA Practical Guide for Professionals and Makers
KiCad 9Top New and Updated Features
Precision Picoammeter (1)With Curve Tracer Functionality Down to the pA range!
Christmas Star 2025A Star Is Soldered
100 mV Continuity Tester
Who’s Pushing the Boundaries of European Electronics?Companies to Watch
productronica 2025: What’s New in Electronics Development and Production
Automation to Tackle Reshoring Manufacturing, Tariffs and Labour Shortages
Beyond Future ProofCircularity in Electronics
Passive ComponentsLow-Loss Inductors Enabling High-Efficiency DC/DC Converters
How Desktop Manufacturing Machines Are Democratizing PCB Production
Starting Out in Electronics...Needs Power
UHD Displays Driven with EaseYour Guide to Easily Put Various TFT-LCDs Into Operation Quickly
Soldering in 2025Practical Soldering Tips Straight from the Workbench
SimulIDEAn All-in-One Tool for Circuit Prototyping
2025: An AI OdysseyFrom Autocomplete to Colleague
Wordy Christmas TreeA Festive Electronics Project with a Linguistic Twist
Err-lectronicsCorrections, Updates, and Readers’ Letters
Analog Pipeline DistortionA Cool Audio Effect For Guitars and Other Instruments
ESP32 Audio Transceiver Board (Part 3)Stereo Transmission and Dual Radio
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
Build your own AI microcontroller applications from scratch
The MAX78000FTHR from Maxim Integrated is a small development board based on the MAX78000 MCU. The main usage of this board is in artificial intelligence applications (AI) which generally require large amounts of processing power and memory. It marries an Arm Cortex-M4 processor with a floating-point unit (FPU), convolutional neural network (CNN) accelerator, and RISC-V core into a single device. It is designed for ultra-low power consumption, making it ideal for many portable AI-based applications.
This book is project-based and aims to teach the basic features of the MAX78000FTHR. It demonstrates how it can be used in various classical and AI-based projects. Each project is described in detail and complete program listings are provided. Readers should be able to use the projects as they are, or modify them to suit their applications. This book covers the following features of the MAX78000FTHR microcontroller development board:
Onboard LEDs and buttons
External LEDs and buttons
Using analog-to-digital converters
I²C projects
SPI projects
UART projects
External interrupts and timer interrupts
Using the onboard microphone
Using the onboard camera
Convolutional Neural Network