En moins de 100 lignes de code par projet avec les cartes Feather Sense et Clue Express d'Adafruit
Le langage de programmation Python est apprécié par les pédagogues parce que sa syntaxe le rend facile à comprendre. Il s'est également imposé chez les informaticiens expérimentés. La société Adafruit a développé une version spéciale de Python pour l'embarquer sur les microcontrôleurs à 32 bits : CircuitPython.
Ce livre permettra au lecteur de s'initier à la programmation en CircuitPython sur deux cartes : Feather BlueFruit Sense (également appelée Feather nRF52840 Sense) et CLUE nRF52840 Express. Chacune est animée par le SoC nRF52840 de NORDIC avec une architecture à 32 bits.
Pour ce voyage dans le monde de la programmation embarquée, l'auteur sort du chemin classique, à savoir un cours complet sur la programmation orientée objet appliquée à ce langage. Il préfère emmener le lecteur directement sur le terrain avec des projets qui mettent en oeuvre les cartes et différents périphériques. Plus d'une quarantaine d'exemples et de montages permettent de découvrir la richesse de CircuitPython. Toutefois l'auteur s'est imposé une limite pour ne pas décourager les novices : le code de chaque projet ne dépasse jamais la centaine de lignes. Pour ce qui est du matériel, là aussi la simplicité domine : aucun programmateur, un simple PC suffit ; aucun soudage grâce au câblage sur platine d'essai. Les cartes d'extension FeatherWing à enficher sur la Feather nRF52840 Sense permettent de démultiplier ses fonctions : matrice de LED, enregistreur de données, écran à encre électronique, écran OLED, écran TFT, commande de moteurs, audio, relais…
Toutes les étapes (assemblage des différents composants, installation des bibliothèques requises, programmation, tests…) sont expliquées en détail. Le code des différents exemples et projets est disponible sur Github. Le résultat de chaque projet est même présenté sur de courtes vidéos disponibles sur YouTube.
À la fin de sa lecture, le nouveau Pythonien pourra facilement approfondir les notions abordées et donner vie à ses propres projets grâce aux outils qu'il aura essayés.
Ce livre s'adresse aux lycéens et étudiants ainsi qu'à toute la communauté des makers.
Chaîne YouTube de l'auteur :
YouTube (Michaël Bottin)
Elektor GREEN en GOLD leden kunnen deze uitgave hier downloaden.Nog geen lid? Klik hier om een lidmaatschap af te sluiten.
Voor ogen en oren
Video-output met microcontrollers (1)Composiet Video
electronica 2022nieuws van 's werelds grootste elektronicabeurs
ESP32-camerazo simpel – heeft niet eens WiFi
ATX-voeding voor Raspberry Pi
32 Ω KoptelefoonversterkerEenvoudige maar hoogwaardige 3-chip oplossing
SDR-radioklokkenvijf tijdsignalen, zes displays
Alle begin......zet een streep onder de diode
Uit het leven gegrepenover de kwaliteit der dingen
Reverse-engineering van een Bluetooth Low Energy LED-badgeeen BLE-apparaat besturen met een Python-script
MakePython ESP32 Development KitAlles in een doosje
THD-meting met een oscilloscoop en FFTgemakkelijke berekening van de vervormingsfactor
Allesziende machinesde technologie achter moderne industrële visionsystemen
Infographics
De evolutie van spraak- en audiogestuurde elektronische apparaten
WEEF 2022 terugblik
FFWD elektronica 2022 terugblikde vernieuwers hebben niet nagelaten indruk te maken
The Tubeeen ongebruikelijke buizenversterker
Biomateriaal in elektronica: klaar of niet
De Opera Cake antenne switch voor HackRF OneSluit tot acht antennes aan op uw SDR
Engineering met de Arduino, en meerEen interview met auteur Ashwin Pajankar
LiDAR-precisiemetermeet tot 12 meter
Audiosignalen en de ESP32De ESP-ADF-omgeving in de praktijk
Elektor Fortissimo-100 einversterker-kit
Lichtgestuurde geluidseffectenSpanningsgestuurd 24 dB/oct synthesizerfilter (VCF) met LDR's
De kilo-watter van Elektuurmeer volume gaat niet!
Oost West Lab Besteen volumetrisch display in Canada
Project 2.0Correcties, Updates en Brieven van lezers
Hexadoku
Learn to Build Intelligent Embedded Systems
Build smarter embedded systems with Arduino UNO Q. This book gives you the tools, knowledge, and confidence to turn ideas into intelligent, working solutions using the Arduino UNO Q platform. Discover how to build intelligent embedded systems with the Arduino UNO Q and AI.
Unlock the full potential of the Arduino UNO Q, a next-generation platform that combines the real-time power of the STM32U585 microcontroller with the flexibility of a Qualcomm Dragonwing QRB2210 microprocessor.
Learn how to rapidly prototype real-world applications using the Arduino IDE for low-level embedded control and Python in Arduino App Lab for high-level development.
Build confidence through hands-on projects that guide you step by step from basic board features to complete working systems.
Explore ready-to-use, AI based Arduino App Lab examples and see how they can jump-start your development and reduce time to deployment.
Step into the world of Edge AI with a clear, practical introduction to Edge Impulse Studio—no prior AI experience required.
Follow a complete, real-world workflow to create a Keyword Spotting AI application, covering data collection, model training, optimization, and on-device inference using the Edge Impulse Studio.
Bridge the gap between embedded systems and machine learning and learn how to bring intelligence directly onto your hardware.
Perfect for embedded engineers, educators, students, and makers looking to stay ahead in AI-enabled product development.
In ESP32 programmeren voor beginners bekijken we de ESP32 en zijn voorganger, de ESP8266. Deze kleine, maar zeer krachtige Chinese chips bestaan uit een processor, geheugen, input- en outputaansluitingen en hebben draadloze netwerktoegang via WiFi.
Met dit boek tonen we hoe de programmeeromgeving Arduino werkt en hoe die kan gebruikt worden met ESP-hardware. Aan de hand van voorbeelden en projecten verduidelijken we hoe de ESP-hardware kan worden toegepast.
In vogelvlucht:
We beschrijven de opbouw van ESP-experimenten.
We tonen hoe displays worden aangesloten.
Eeprom_24c16 demonstreert hoe een externe geheugenchip wordt gebruikt om getallen en tekst op te slaan en weer uit te lezen.
Project Klok is de eenvoudige implementatie van een digitale klok.
We geven een handleiding voor het gebruik van temperatuur- en luchtvochtigheidsensoren.
Webclient laat zien hoe de ESP32 gegevens van het internet kan halen.
Met Webserver kunnen we op afstand met een pc of smartphone gegevens halen uit een ESP32, sensoren uitlezen en toestellen aan- en uitschakelen.
Een NTP-klok haalt tijdinformatie van Tijdserver. Die geeft zowel de tijd als het aantal seconden sinds 1 januari 1900. Het boek beschrijft hoe hieruit de tijd kan worden berekend.
In het laatste hoofdstuk gebruiken we het internet om nauwkeurige weerinformatie en voorspellingen op te vragen.
The SEQURE T55 Smart Mini Temperature Adjustable Soldering Hot Plate is a compact and efficient tool designed for precise preheating and desoldering tasks. With its adjustable temperature range from 50°C to 280°C (122°F to 536°F), it is suitable for various applications, e.g. cell phone repair, PCB assembly, etc.
Features
Adjustable heating temperature range: 50°C to 280°C (122°F to 536°F)
Equipped with a heat-resistant ceramic temperature sensor, ensuring high-accuracy data measurement under continuous high temperatures.
Automatically stops heating after reaching the preset working time.
Supports PD, QC, and DC (max 25 V).
Intelligent temperature control algorithm for temperature compensation and power adjustment.
128 x 32 resolution OLED display with a built-in buzzer to indicate operating status.
°C/°F conversion
Specifications
Heating Area
55 x 55 mm
Working Temperature
50-280°C (122-536°F)
Max Voltage
25 V
Max Power
95 W
Recommend Voltage
19-25 V
PD Power Supply
PD 20 V ≥3A
Power Supply Modes
PD, QC, DC
Interface
USB-C
Display
128 x 32 OLED
Menu Languages
English, Russian, and Chinese
Dimensions
55 x 60 x 37 mm
Weight
92 g
Included
1x SEQURE T55 Smart Mini Soldering Hot Plate
1x PD 65 W Power Supply (EU)
1x Fast Charging Cable (100 W/5 A)
The SQ series of handsfree PCBite probes from Sensepeek are insulated, come with included color-coded cable holders and have a lower point of gravity making them even more stable compared with the original SP series of probes. All the loved features of handsfree measurement, exchangeable fine pitch spring tipped test needle and the minimalistic design is maintained to make traditional sized and handheld probes obsolete.
Features
All handsfree probes from Sensepeek makes instant measurements or long triggering sessions a breeze.
No more soldering wires to connect your probe or complicated tools to setup, just positioning the probe needle on any test point or component in the signal path and release.
Saves time and frustration during development, verification and repairs.
The minimalist design and the spring-loaded test needle makes it possible to simultaneously measure on fine pitch components and nearby signals.
Both length and weight of the SQ probes are perfectly balanced to be used with the included PCB holders and base plate which is a must for handsfree function.
The probe holder comes with a powerful magnet in the base, as for all PCBite probes and holders which makes the probe easy to place and reposition.
The SQ series of probes can be used handheld without the probe holder as they have an insulated grip but their full potential is used when measuring handsfree.
One side of the included baseplate is matte and the other is mirror polished. The mirror polished surface makes it easy to see components on the circuit board underside. For added protection during measurement the included insulation cover can be mounted on one of the surfaces.
Included
4x PCBite PCB holders
1x Set of yellow insulation washers for the PCB holders
1x Large Base plate (A4)
1x Insulation cover for the base plate (A4)
1x Micro fiber cloth
4x SQ10 probes and pin tipped test needles (black)
2x Banana to dupont test wires (red/black)
5x Dupont to dupont test wires
1x Set of cable holders (4 colors)
4x Extra test needles
Downloads
User guide (PCBite kit)
User guide (SQ10 probes)
De schrijver laat niet alleen beginners maar ook gevorderden op professionele wijze en met verstand van zaken kennismaken met dit uiterst interessant onderwerp. Ook hobbyisten of professionals die hun kennis willen verdiepen of uitbreiden, krijgen daartoe in dit boek volop mogelijkheid. De moderne state-of-the-art AVR-processoren van Atmel vormen in combinatie met programmering in C een platform dat gedurende lange tijd actueel zal blijven.
Na een inleiding en een kennismaking met de vereiste ontwikkelomgeving komen projecten aan bod die stap voor stap naar het gewenste doel leiden. Voor de meeste projecten wordt het Mini-Megaboard gebruikt – een experimenteerprint die oorspronkelijk in het maandblad Elektor is beschreven. Dit garandeert dat de beschreven projecten probleemloos kunnen worden nagebouwd. Maar natuurlijk kunnen ook eigen experimenteerprinten worden gebruikt – een van de doelstellingen van dit boek is immers dat de lezer uiteindelijk zelfstandig eigen schakelingen kan ontwerpen en bouwen.
Een greep uit de inhoud:
De juiste microcontroller
De ontwikkelomgeving
De eerste experimenten met de ?C
Het Mini-Mega-board
Beginselen van I/O
Vloeibaar-kristal-displays
Seriële data-overdracht
Analoge in- en uitvoer
Programmasturing met interrupts
Timers en counters
Geheugenoperaties
De seriële I²C-bus en SPI
Voorbeeldprojecten
The Elektor LoRa NodeVersatile, long-range, 868-MHz remote control with state feedback and STM32 Inside
InteractiveCorrections & Updates || Questions & Answers
Analogue Electronics DesignCase Study #1 — Section 2: Preamplifier optimized for MEMS microphone
My IoT Button: A Button for the WebPart 1: IoT architecture
BASIC for the ESP32 and ESP8266Programming with Annex WiFi RDS
ESP32 Doorbell via Telegram“The UPS Man Always Rings Once”
Small Circuits RevivalCapita Selecta from the Elektor Project Suggestions Box
My First LoRaWANWith Blue Pill, LoRa Breakout Board and The Things Network
Elektor Connexions 2003EL
“A Strong Supporter of Open Internet”Interview with Wienke Giezeman, Initiator of The Things Network
The Meadow F7 BoardA great board for .NET developers
Practical ESP32 Multitasking (2)Task priorities
Sigfox and the IoT (3)First steps on the network
Raspberry Pi Bash Command Cheat Sheet
Europe's Most Successful Start-up Accelerator?HighTechXL, Eindhoven, The Netherlands
Review: The Enviro+ RPi-HATMeasure air quality with a Raspberry Pi and the Enviro+ HAT
Steeped in Electronicsordering components from Ukraine and Russia
Review: Andonstar AD407Better than its predecessor?
Lab, Sweet LabA glimpse of The Holy Place — no unauthorized entry.
Optical Probe for OscilloscopesMeasure brightness fluctuations of lighting systems
The 'TABULA' Project - An UpdateTangibles with user feedback
How-To Calculate the Prospective Short-Circuit Current or PSCCand choose the proper circuit breaker
TMS1000 Series Microcontrollers
Peculiar Parts, the series
Starting Out in Electronics (2)
Easier than imagined!
Developer's ZoneTips & Tricks, Best Practices and Other Useful Information
Locating Wayward Wires
Track and trace concealed and defective cables with ease and certainty
Review: Joy-IT DMSO2D72 Portable 3-in-1 Oscilloscope
Homebrew PC for the Electronics LabTips on Component Choice and Construction
The Elektor ‘Intelekt’ Chess Computer (1981)Tiny Chess 86 ported to the Intel 8088
Beyond ElectronicsPCB Art - Pushing the Limits of Industrial Manufacturing
The DCA75 Pro is a great instrument that combines ease-of-use with amazing features. It can automatically identify a huge range of semiconductors, automatically identify pinouts and measure detailed parameters.
Features
Built-in graphics display (now backlit) to show detailed schematic of the component you're testing as well as pinout and measurement data
USB connectivity to allow curve tracing, data storage/retrieval and device matching on your Windows PC (Windows 7 and higher)
Single internal AAA alkaline cell for standalone operation
Component Support
Bipolar transistors (NPN/PNP inc Silicon/Germanium)
Darlington transistors (NPN/PNP)
Enhancement mode MOSFETs (N-Ch and P-Ch)
Depletion mode MOSFETs (N-Ch and P-Ch)
Junction FETs (N-Ch and P-Ch). Both symmetrical and asymmetrical types
Enhancement IGBTs (N-Ch and P-Ch)
Diodes and diode networks (2 and 3 lead types)
Zener diodes (up to about 9 V)
Voltage regulators (up to about 8 V)
LEDs and bi-colour LEDs (2 lead and 3 lead types)
Low power sensitive Triacs and Thyristors (<10 mA trigger and hold)
Measurements
BJT current gain (hFE)
BJT base emitter voltage (Vbe)
BJT collector leakage current
MOSFET on and off gate threshold voltages
MOSFET transconductance
JFET pinch-off voltage
JFET transconductance
JFET IDSS (drain current for Vgs=0)
IGBT on and off gate threshold voltages
IGBT transconductance
Voltage regulator output voltage
Voltage regulator quiescent current consumption
Voltage regulator drop-out voltage
Zener voltage
Diode forward voltage drop
Specifications
Analyzer type
Semiconductor components
Component detection
Automatic
Pinout detection
Automatic, connect any way round
Display type
Graphic LCD (now backlit)
Interface type
USB for optional PC connection
PC functions
Curve tracing (Windows 7 and higher)
Software
Included on USB drive for Windows 7 and higher
Battery
Single AAA cell (supplied)
Included
Peak Atlas DCA75 Pro
PC software on a USB Flash Drive for Windows 11, 10, 8, 7, XP
Micro USB cable
Fitted universal premium hook probes
AAA Alkaline battery
Downloads
Datasheet (EN)
User Guide (EN)
User Guide (IT)
Software Installation Guide (EN)
Software and Firmware Package
Pfiffige Lösungen mit Arduino Pro Mini und ATmega328-Boards
Mit einem einfachen Arduino Pro Mini Board und ein paar weiteren Bauteilen lassen sich heute für wenig Geld Projekte realisieren, die vor 20 oder 30 Jahren noch undenkbar waren oder ein kleines Vermögen gekostet hätten. Von einfachen LED-Effekten bis zur Ladestation – die den Akku auf Herz und Nieren prüft – ist in diesem Buch vieles dabei.
Als Mikrocontroller dient bei allen beschriebenen Projekten der ATmega328, der mit seinen 20 Ein- und Ausgangsleitungen unzählige Möglichkeiten zum Messen, Schalten und Steuern bietet. Mit einem 7-Segment-Display und ein paar Widerständen lässt sich daraus z. B. ein Voltmeter bauen oder mittels NTC ein Thermometer. Die Arduino-Plattform bietet dabei die perfekte Entwicklungsumgebung zum Programmieren der Boards.
Neben den ganz konkreten Projekten soll das Buch aber auch das nötige Wissen vermitteln, um eigene Ideen zu realisieren. Wie misst man was? Welches ist der geeignete Transistor, um verschiedene Verbraucher zu schalten? Wann ist man mit einem IC besser bedient, oder wie schaltet man Netzspannung? Auch batteriebetriebene Projekte mit LilyPad sind ausführlich thematisiert. Ebenso vielerlei Motoren, vom einfachen Gleichstrommotor bis zum Schrittmotor.
Sensoren sind ein weiteres spannendes Thema. Nur zwei Beispiele: Mit einem winzigen Bauteil lässt sich tatsächlich messen, dass der Luftdruck am Fußboden höher ist als auf Tischhöhe. Mit einem simplen Infrarot-Empfänger kann man ausgedienten Fernbedienungen ein zweites Leben schenken und die Wohnung damit steuern.
Technology is constantly changing. New microcontrollers become available every year. The one thing that has stayed the same is the C programming language used to program these microcontrollers. If you would like to learn this standard language to program microcontrollers, then this book is for you!
Arduino is the hardware platform used to teach the C programming language as Arduino boards are available worldwide and contain the popular AVR microcontrollers from Atmel.
Atmel Studio is used as the development environment for writing C programs for AVR microcontrollers. It is a full-featured integrated development environment (IDE) that uses the GCC C software tools for AVR microcontrollers and is free to download.
At a glance:
Start learning to program from the very first chapter
No programming experience is necessary
Learn by doing – type and run the example programs
A fun way to learn the C programming language
Ideal for electronic hobbyists, students and engineers wanting to learn the C programming language in an embedded environment on AVR microcontrollers
Use the free full-featured Atmel Studio IDE software for Windows
Write C programs for 8-bit AVR microcontrollers as found on the Arduino Uno and MEGA boards
Example code runs on Arduino Uno and Arduino MEGA 2560 boards and can be adapted to run on other AVR microcontrollers or boards
Use the AVR Dragon programmer/debugger in conjunction with Atmel Studio to debug C programs
The FNIRSI TMP-610S is a compact 3-in-1 test instrument combining a True RMS multimeter, 10 MHz oscilloscope, and 50 kHz DDS signal generator. It is designed for electronics troubleshooting, circuit testing, and development in the lab or on the go.
The multimeter offers 60,000-count resolution and supports voltage, current, resistance, capacitance, frequency, temperature, diode, and continuity measurements. The integrated oscilloscope provides real-time waveform analysis at up to 48 MSa/s, while the signal generator supports 13 waveform types with adjustable frequency, amplitude, and duty cycle.
A 3.5-inch IPS touchscreen, smart auto-scan, Bluetooth connectivity for DMM functions, waveform storage, USB export, and a 3,000 mAh rechargeable battery make the TMP-610S a versatile all-in-one tool for electronics professionals and enthusiasts.
Features
3-in-1 Design: DMM + Oscilloscope + Signal Generator
60,000-Count True RMS High-Precision Measurement
10 MHz Oscilloscope with 48 MSa/s Sampling Rate
Bluetooth App Sync (Multimeter Function Only)
3.5-inch Smart Touchscreen with Multiple Display Modes
50 kHz DDS Signal Generator with 13 Waveforms
Built-in Fuse for Easy Replacement
Specifications
Multimeter
Function
Range
Accuracy
DC voltage
600mV/6V/60V/600V/1000V
±(0.03%+5d)
AC voltage
600mV/6V/60V /600V/750V
±(0.3%+15d)
DC current
600uA/6000uA/60mA/600mA
±(0.15%+5d)
6A/10A
±(0.2%+5d)
AC current
600uA/6000uA/60mA/600mA
±(0.5%+15d)
6A/10A
±(0.75%+15d)
Resistance
600Ω/6KΩ/60KΩ/600KΩ/6MΩ
±(0.1%+5d)
60MΩ
±(0.2%+10d)
Capacitance
60nF/600nF/6uF/60uF
±(2.5%+30d)
600uF/6mF/60mF
±(3.5%+30d
Frequency
10 Hz~60 MHz
±(0.01%+5d)
Temperature
-40℃~1000℃
±(1.0%+5℃)
Continuity
0Ω~1KΩ
±(0.2%+5d)
Diode
0V~3.0V, 0Ω~1 Ω
±(1%+5d)
AC frequency response
10KHz
/
Oscilloscope
Real-time Sampling Rate
48 MSa/s
Analog Bandwidth
10 MHz
Input Impedance
1MΩ
Coupling Mode
AC/DC
Test Voltage Range
1:1 Probe - 80Vpp (±40V)
10:1 Probe - 800Vpp (±400V)
Vertical Sensitivity
10mV/div~10V/div
Vertical Displacement
Adjustable with indication
Horizontal Time Base Range
50 ns ~ 20 s
Trigger Mode
Auto, Normal, Single
Trigger Type
Rising, Falling, 50%
Trigger Level
Adjustable with indication
Measurement Parameters
Freq, Period, +Duty, ‒Duty, +Width, ‒Width, Max, Min, P‒P, Amp, RMS, Avg
Persistence
Off / 500ms / 1s / ∞
Cursor Measurement
Yes
Waveform Screenshot Saving
Yes
Signal Generator
Output Waveform
Supports 13 waveform types
Frequency
0~50kHz
Amplitude
0.0V~3.0V
Duty Cycle
0~100%, adjustable for Square and Sawtooth waves
Included
1x FNIRSI TMP-610S Multimeter + Oscilloscope + Signal Generator
1x P6100 Probe
1x Adapter
2x Alligator Clips
2x Multimeter Probes
Probe Accessories
1x Storage Bag
1x USB-C Cable
1x Manual
Downloads
Manual