Programming and Projects for the Minima and WiFi
Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface.
Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate.
The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including
LEDs
7-segment displays (using timer interrupts)
LCDs
Sensors
RFID Reader
4x4 Keypad
Real-time clock (RTC)
Joystick
8×8 LED matrix
Motors
DAC (Digital-to-analog converter)
LED matrix
WiFi connectivity
Serial UART
CAN bus
Infrared controller and receiver
Simulators
… all in creative and educational ways with the project operation and associated software explained in great detail.
electronica fast forward Start- & Scale-Up Awardsde voorbereidingen gaan steeds sneller!
Bluetooth Low Energy met ESP32-C3 en ESP32het hoeft niet altijd WiFi te zijn!
Bluetooth LE-snifferhack een makerdiary nRF52840 MDK USB-dongle
Magische RGB LED-kubushardware ontwerpen rond een RP2040 Auto-aan/uit voor soldeerpasta-compressor
Elektor video-productieslivestreams, webinars en cursussen voor engineers en pro-makers
Elektrificeer je fietsmet een e-bike ombouwset
Alle begin......vermenigvuldigt spanningen
Uit het leven gegrepennevenactiviteiten
Teensy 4.0 – waarom is dat board zo snel?snelheid is geen hekserij!
Simulatie van een audio-eindversterker met TINAeerst uitproberen, dan bouwen
Ontwikkel en beheer je eigen LoRaWAN IoT-nodesvoorbeeldhoofdstuk: Dragino LHT65, LDS01 en LDS02 LoRaWAN modules
Project 2.0correcties, updates en brieven van lezers
5G – alleen voor mijvolledige controle over 5G-implementaties met een eigen cellulair netwerk Elektor Infographics
Tips voor het ontwikkelen van een WiFi-interfacetoepassingen uitrusten met WiFi-interfaces Rijntoren-klok Mk 2
Audio-spectrumanalyzer met dekatronsnieuw leven voor vintage-buisjes
Data naar Telegram sturenmet een ESP32 en een paar onderdelen
Een Fliege-notchfilter voor audiometingenmeet beter met een notchfilter
Veranderende industriële communicatieSingle Pair Ethernet – meer dan zo maar een nieuwe connector
Elektronische mannetjes-PUT-terzo werkt de programmeerbare unijunctie-transistor
Rond touchscreen voor Raspberry PiHyperPixel 2.1 Round van Pimoroni
Remote sensing met detectie van verbindingsverliesmet nRF24L01+ modules
Digitale FM-ontvanger met Arduino en TEA5767stem af met een Arduino Nano OLED-interface ombouwen van SPI naar I²C
Oost West Lab Besteen hobby gaat niet met pensioen...
Tien jaar ethiek in elektronicaTessel Renzenbrink over de digitale samenleving en meer
HexadokuThe Original Elektorized Sudok
Multitasking and multiprocessing have become a very important topic in microcontroller-based systems, namely in complex commercial, domestic, and industrial automation applications. As the complexity of projects grows, more functionalities are demanded from the projects. Such projects require the use of multiple inter-related tasks running on the same system and sharing the available resources, such as the CPU, memory, and input-output ports. As a result of this, the importance of multitasking operations in microcontroller-based applications has grown steadily over the last few years. Many complex automation projects now make use of some form of a multitasking kernel.
This book is project-based and its main aim is to teach the basic features of multitasking using the Python 3 programming language on Raspberry Pi. Many fully tested projects are provided in the book using the multitasking modules of Python. Each project is described fully and in detail. Complete program listings are given for each project. Readers should be able to use the projects as they are, or modify them to suit their own needs.
The following Python multitasking modules have been described and used in the projects:
Fork
Thread
Threading
Subprocess
Multiprocessing
The book includes simple multitasking projects such as independently controlling multiple LEDs, to more complex multitasking projects such as on/off temperature control, traffic lights control, 2-digit, and 4-digit 7-segment LED event counter, reaction timer, stepper motor control, keypad based projects, car park controller, and many more. The fundamental multitasking concepts such as process synchronization, process communication, and memory sharing techniques have been described in projects concerning event flags, queues, semaphores, values, and so on.
This OWON DC Power Supply has a small body and is easy to carry due to its light weight. Featuring a 3.7" TFT LCD display, it has a maximum output power of 180 W and a resolution of 1 mV/1 mA.
Features
Channel
Single Channel Output
Total Output Power
180 W
Channel Output
0 - 60 V / 0 - 3 A × 1-CH
Display
3.7' color LCD display
Dimension
117 mm(L) × 194 mm(H) × 295 mm(D)
Weight
Approx. 5.8 kg
Interface
RS232
Specifications
Rated Output (0 ℃ - 40 ℃)
Voltage
0 - 60 V
Current
3 A
Load Regulation
Voltage
≤ 0.01% + 3 mV
Current
≤ 0.01% + 3 mA
Power Regulation
Voltage
≤ 0.01% + 3 mV
Current
≤ 0.01% + 3 mA
Setting Resolution
Voltage
1 mV
Current
1 mA
Readback Resolution
Voltage
1 mV
Current
1 mA
Setpoint accuracy (within 12 months) (25 ℃ ± 5 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Readback Resolution (25 ℃ ± 5 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Ripple/Noise (20 Hz - 20 MHz)
Voltage (Vp-p)
≤ 4 mVp-p
Voltage (Vrms)
≤ 1 mVrms
Current (rms)
≤ 4 mArms
Output temperature coefficient(0 ℃ - 40 ℃)
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Readback temperature coefficient
Voltage
≤ 0.03% + 10 mV
Current
≤ 0.1% + 5 mA
Response Time
100 μs
Storage
5 groups of data
Working Temperature
0 - 40 ℃
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
The OWON SDS1102 is an affordable benchtop digital oscilloscope that combines solid performance with essential measurement features. This 2-channel oscilloscope offers a 100 MHz bandwidth, a 1 GS/s sampling rate, a 7-inch LCD display, and a 10 kpts memory depth, making it a practical choice for everyday electronics testing, troubleshooting, and education.
The SDS1102 features a simplified trigger system with level and edge triggering, making it easy to capture and analyze common signals. It is designed for applications that do not require deep memory or advanced trigger functions, offering a straightforward and cost-effective solution for basic signal analysis.
Features
Bandwidth: 100 MHz
2 channels
Sample rate: 1 GS/s
Ultra-thin body
7-inch high-res LCD
SCPI and LabVIEW supported
Specifications
Bandwidth
100 MHz
Horizontal Scale (s/div)
5 ns/div – 1000 s/div
Channel
2
Vertical Sensitivity
5 mV/div – 5 V/div (at input)
DC Gain Accuracy
3%
Vertical Resolution (A/D)
8 bits (2 channels simultaneously)
Input
Input Impedance
1 MΩ, 10 pF
Input Coupling
AC, DC, GND
Max Input Voltage
±400 V, CATI, CATII
Passive probes
х1; х10
Probe Attenuation Factor
х1; х10; х100; х1000
Trigger System
Trigger Mode
Auto, Normal, Single
Trigger Type
Edge, Video
Edge Trigger Source
CH1, CH2
Video Trigger
Sampling Type
Real-time
Sample Rate
1 GS/s
Equivalent Sample Rate
No
Wavelength
10K pts
Interpolation
sin(x)/x
Measurement and Mathematical Treatment System
Automatic Measurement
Vpp, Vavg, RMS, Frequency, Period, Vmax, Vmin, Vtop, Vbase, Width, Overshoot, Pre-shootRise time, Fall time, +Width, -Width, +Duty, -Duty, Delay A→B, Delay A→B, area, cycle area
Math Functions
Addition, Subtraction, Multiplication, Division, FFT
General Characteristics
Display type
7" color LCD
Display Resolution
800 x 480
Power
100-240 V, 45-440 Hz, <15 W
Dimensions
301 x 70 x 152 mm
Weight
1.1 kg
Included
1x OWON SDS1102 Oscilloscope
2x Oscilloscope probes
1x Probe adjust
1x Mains power cord
1x USB cable
1x CD-Rom
1x Quick guide
Downloads
Quick Guide
Manual
PC Software
SCPI Commands
Upgrade your Andonstar AD409, AD409 Pro, or AD409 Pro-ES to the Max model with this enhancement kit. The newly designed, oversized Max station provides ample workspace, making it perfect for larger projects and ideal for professional soldering tasks.
Included
1x Stand with 2 LEDs
1x Repair mat
1x Beam
1x Column
1x Tool holder
1x Soldering Helping Hands
Learn to interface and program hardware devices in a wide range of useful applications, using ARM7 microcontrollers and the C programming language. Examples covered in full detail include a simple LED to a multi-megabyte SD card running the FAT file system.
Features of this book
Build prototype circuits on breadboard or Veroboard and interface to ARM microcontrollers.
A 32-bit ARM7 microcontroller is used in interfacing and software examples.
Interfacing principles apply to other ARM microcontrollers and other non-ARM microcontrollers as well.
Example programs are written in the C programming language.
Use only free or open source software.
Download and install all programming tools from the Internet.
Template project files are provided for easy project creation.
Hardware
Interface to LEDs, transistors, optocouplers, relays, solenoids, switches, keypads, LCD displays, seven segment displays, DC motors, stepper motors, external analogue signals using the ADC, RS232, RS-485, TWI, USB, SPI and SD memory cards.
Software
Once hardware has been interfaced to a microcontroller, software must be written to control the hardware. You will learn how to write programs to operate externally interfaced hardware devices, use timers and interrupts. Also learn how to port FAT file system code for use with an SD memory card, program the PWM to produce an audio sine wave, program the PWM to speed control a DC motor and more.
A chapter on more advanced ARM microcontrollers is included with an overview of some of the newest ARM microcontrollers and their features.
Die serielle Schnittstelle dient dem Datenaustausch zwischen Mikrocontrollern und Peripheriegeräten. Bei einer seriellen Datenübertragung werden die Bits nacheinander – also seriell – über eine Leitung übertragen. Das Wissen um diese seriellen Schnittstellen erweitert die Einsatzmöglichkeiten von Mikrocontrollern und Peripheriegeräten ungemein.
In diesem Buch werden die Grundlagen der Kommunikation für die drei seriellen Schnittstellen I²C, SPI und 1-Wire vorgestellt. Anhand praxisnaher Beispiele werden die Schnittstellen anschaulich dargestellt und deren Einsatz verdeutlicht. Software- und Hardwarebeispiele, die man in diesem Buch finden kann, wurden in Assembler für PIC-Mikrocontroller von Microchip realisiert. Die verwendeten Algorithmen und Vorgehensweisen kann man aber auf beliebige Plattform übertragen.
Um den Inhalt des Buches ansprechend zu gestalten, demonstriert der Autor den Buchinhalt an zwei Platinen. Mit diesen Platinen ist es möglich, die in diesem Buch beschriebenen Beispiele auszuprobieren und mit den Schnittstellen zu experimentieren. Beide Platinen basieren auf 8-bit-PIC-Mikrocontrollern von Microchip.
Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine !
Pas encore membre ? Cliquez ici.
CaptureCountdétecteur et compteur d'objets basé sur le Raspberry Pi 5
référence de tension avec Arduino Pro Minilinéariser et calibrer les entrées analogiques
FPGA pour les débutantsThe Path From MCU to FPGA Programming
mise à jour : STM32 Wireless Innovation Design Contest 2024
Bluetooth LE avec MAUIControl Apps for Android & Co.
carte d'extension de portsaugmentez le nombre d'E/S de votre carte de développement
carte spéciale IAapprentissage automatique avec le Jetson Nano
2024 : l'Odyssée de l'IApremiers essais avec TensorFlow
262 144 façons de jouer au Jeu de la Vieun projet de lecteur en bref
sur le vifle souffle du dragon sur mon cou
faites tourner votre moteur CCSample Projects from the Elektor Motor Control Development Bundle
Adaptateur ESP32-RS-232A Wireless Link for Classic Test Equipment
démarrer en électronique…en savoir plus sur les ampli-op
bibliothèques ESP recommandées
composants piézoélectriques
compteur d'objets intelligentreconnaissance d'images simplifiée avec Edge Impulse
des solutions à vos problèmes de développement de systèmes embarqués les plus délicats
Terminal ESP32un appareil portable avec un écran tactile
commencer avec le RTOS Zephyraussi puissant que difficile à maîtriser
Award-Winning EthicsDialogue avec Alexander Gerfer, Directeur Technique chez Würth Elektronik eiSos sur la promotion du comportement respectueux et innovant
projet 2.0corrections, mises à jour et courrier des lecteurs
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.