Search results for "microcontroller OR based OR radio OR telemetry OR projects"
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Elektor Digital C Programming for Embedded Microcontrollers (E-book)
Technology is constantly changing. New microcontrollers become available every year and old ones become redundant. 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! ARM microcontrollers are available from a large number of manufacturers. They are 32-bit microcontrollers and usually contain a decent amount of memory and a large number of on-chip peripherals. Although this book concentrates on ARM microcontrollers from Atmel, the C programming language applies equally to other manufacturer’s ARMs as well as other microcontrollers. Features of this book Use only free or open source software. Learn how to download, set up and use free C programming tools. Start learning the C language to write simple PC programs before tackling embedded programming - no need to buy an embedded system right away! Start learning to program from the very first chapter with simple programs and slowly build from there. No programming experience is necessary! Learn by doing - type and run the example programs and exercises. Sample programs and exercises can be downloaded from the Internet. 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 ARM microcontrollers.
€ 29,95
Members: € 26,96
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SDRplay SDRplay RSP1B 14-bit SDR Receiver (1 kHz to 2 GHz)
The SDRplay RSP1B is an enhanced version of the popular RSP1A – a powerful, wideband, full-featured 14-bit SDR that covers the RF spectrum from 1 kHz to 2 GHz. The RSP1B comes in a rugged, black-painted steel case and offers significantly improved noise performance. All it needs is a computer and an antenna to deliver excellent communications-receiver functionality. It includes a choice of SDRuno for Windows and the multi-platform SDRconnect software for Windows, macOS, and Linux (supplied free of charge by SDRplay). You can monitor up to 10 MHz of spectrum at a time. A documented API allows developers to create new demodulators or applications for the platform. Features Covers all frequencies from 1 kHz through VLF, LF, MW, HF, VHF, UHF and L-band to 2 GHz, with no gaps Receive, monitor and record up to 10 MHz of spectrum at a time Free use of windows-based SDRuno software which provides an ever-increasing feature-set Strong and growing software support network Calibrated S meter/ RF power and SNR measurement with SDRuno (including datalogging to .CSV file capability) Documented API provided to allow demodulator or application development on multiple platforms Excellent dynamic range for challenging reception conditions Works with popular 3rd party SDR software (including HDSDR, SDR Console and Cubic SDR) ExtIO based plugin available Software upgradeable for future standards Strong and growing software support network API provided to allow demodulator or application development Multiplatform driver and API support including Windows, Linux, Mac, Android and Raspberry Pi Up to 16 individual receivers in any 10 MHz slice of spectrum using SDRuno Calibrated S meter and power measurements with SDRuno Stand-alone windows-based spectrum analyser software available (with sweep, sample and hold features) Ideal for monitoring of ISM/ IoT/ Telemetry bands <2 GHz Ideal for portable operation Specifications Frequency Range 1 kHz – 2 GHz Antenna Connector SMA Antenna Impedance 50 Ohms Current Consumption (Typical) 185 mA (excl. Bias-T) USB Connector USB Type B Maximum Input Power +0 dBm Continuous+10 dBm Short Duration ADC Sample Rates 2-10.66 MSPS ADC Number of Bits 14 bit 2-6.048 MSPS12 bit 6.048-8.064 MSPS10 bit 8.064-9.216 MSPS8 bit >9.216 MSPS Bias-T 4.7 V100 mA guaranteed Reference 0.5ppm 24 MHz TCXO.Frequency error trimmable to 0.01ppm in field. Operating Temperature Range -10˚C to +60˚C Dimensions 98 x 88 x 34 mm Weight 110 g Downloads Datasheet Software RSP1B vs RSPdx vs RSPduo RSP1B RSPdx RSPduo Continuous coverage from 1 kHz to 2 GHz ✓ ✓ ✓ Up to 10 Mhz visible bandwidth ✓ ✓ ✓ 14-bit ADC silicon technology plus multiple high-performance input filters ✓ ✓ ✓ Software selectable AM/FM & DAB broadcast band notch filters ✓ ✓ ✓ 4.7 V Bias-T for powering external remote antenna amplifier ✓ ✓ ✓ Powers over the USB cable with a simple type B socket ✓ ✓ ✓ 50Ω SMA antenna input(s) for 1 kHz to 2 GHz operation (software selectable) 1 2 2 Additional software selectable Hi-Z input for up to 30 Mhz operation ✓ Additional software selectable 50Ω BNC input for up to 200 MHz operation ✓ Additional LF/VLF filter for below 500 kHz ✓ 24 MHz reference clock input (+ output on RSPduo) ✓ ✓ Dual tuners enabling reception on 2 totally independent 2 MHz ranges ✓ Dual tuners enabling diversity reception using SDRuno ✓ Robust and strong plastic case (with internal RF shielding layer) ✓ Rugged black painted steel case ✓ ✓ Overall performance below 2 MHz for MW and LF + ++ + Multiple simultaneous applications + + ++ Performance in challenging fading conditions (*using diversity tuning) + + *++
€ 148,99
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Elektor Digital Universal Display Book for PIC Microcontrollers (E-book)
The newcomer to Microchip’s PIC microcontrollers invariably gets an LED to flash as their first attempt to master this technology. You can use just a simple LED indicator in order to show that your initial attempt is working, which will give you confidence to move forward. This is how the book begins — simple programs to flash LEDs, and eventually by stages to use other display indicators such as the 7-segment display, alphanumeric liquid crystal displays and eventually a colour graphic LCD. As the reader progresses through the book, bigger and upgraded PIC chips are introduced, with full circuit diagrams and source code, both in assembler and C. In addition, a small tutorial is included using the MPLAB programming environment, together with the EAGLE schematic and PCB design package to enable readers to create their own designs using the book’s many case studies as working examples to work from.
€ 19,95
Members: € 17,96
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Elektor Publishing Wireless Power Design
From Theory to Practical Applications in Wireless Energy Transfer and Harvesting Wireless power transmission has gained significant global interest, particularly with the rise of electric vehicles and the Internet of Things (IoT). It’s a technology that allows the transfer of electricity without physical connections, offering solutions for everything from powering small devices over short distances to long-range energy transmission for more complex systems. Wireless Power Design provides a balanced mix of theoretical knowledge and practical insights, helping you explore the potential of wireless energy transfer and harvesting technologies. The book presents a series of hands-on projects that cover various aspects of wireless power systems, each accompanied by detailed explanations and parameter listings. The following five projects guide you through key areas of wireless power: Project 1: Wireless Powering of Advanced IoT Devices Project 2: Wireless Powered Devices on the Frontline – The Future and Challenges Project 3: Wireless Powering of Devices Using Inductive Technology Project 4: Wireless Power Transmission for IoT Devices Project 5: Charging Robot Crawler Inside the Pipeline These projects explore different aspects of wireless power, from inductive charging to wireless energy transmission, offering practical solutions for real-world applications. The book includes projects that use simulation tools like CST Microwave Studio and Keysight ADS for design and analysis, with a focus on practical design considerations and real-world implementation techniques.
€ 39,95
Members: € 35,96
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Elektor Digital Elektor March/April 2022 (PDF)
Build Your Own RISC-V ControllerFirst Steps with the NEORV32 RISC-V Softcore for Low-Cost FPGAs How to Use Arduino’s Serial PlotterPlotting Graphs With Arduino Is Easy CLUE from AdafruitA Smart Solution for IoT Projects Buffer Board for the Raspberry Pi 400Protect the I/Os Raspberry Pi RP2040 Boards Aplenty A Handbook on DIY Electronic Security and EspionageSRAM Heated or Deep-Frozen Component IdentificationTips & Tricks, Best Practices and Other Useful Information DIY Touchless Light Switch Starting out in ElectronicsMatching and Transforming What’s New in Embedded Development?Rust and Keeping IoT Deployments Updated Infographics How the Industrial and Automotive Sectors Will Benefit from 5G Moving Coil RelaysPeculiar Parts, the series HomeLab ToursEverything Revolves Around the Tools... Understanding the Neurons in Neural Networks (Part 4)Embedded Neurons Magnetic Levitation the Very Easy WayThe Third and Most Compact Version PLC Programming with the Raspberry Pi and the OpenPLC ProjectVisualization of PLC Programs with AdvancedHMI From Life's ExperiencePack Up and Leave Under Your RadarMicrocontrollers You Should Know About Monitor and Debug Over the AirA Solution for Arduino, ESP32 and Co. Portable Temperature- and Humidity-Measuring DeviceUsing Ready-Made Modules Lithium Battery Pack RepairSave Money + More Power! GUIs with PythonMeme-Generator Three Questions to Build OnWhy, What, and Who? HexadokuThe Original Elektorized Sudoku
€ 7,50
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SDRplay SDRplay RSPdx-R2 Single-Tuner 14-bit SDR Receiver (1 kHz to 2 GHz)
The SDRplay RSPdx-R2 is a wideband full featured single-tuner 14-bit SDR receiver which covers the entire RF spectrum from 1 kHz to 2 GHz giving up to 10 MHz of spectrum visibility. It contains three antenna ports, two of which use SMA connectors and operate across the full 1 kHz to 2 GHz range and the third uses a BNC connector which operates up to 200 MHz. The RSPdx-R2 is an enhanced version of the RSPdx with further design improvements for use at frequencies below 2 MHz. Housed in a strong steel case, in addition to the functionality of the RSP1B, the RSPdx-R2 provides three software selectable antenna inputs and an external clock input. It offers excellent performance through HF and VHF frequencies all the way up to 2 GHz. The RSPdx-R2 also supports an "HDR mode" optimised for the demanding radio reception conditions below 2 MHz. The RSPdx-R2, when used in conjunction with SDRplay’s own software, introduces a special HDR (High Dynamic Range) mode for reception within selected bands below 2 MHz. HDR mode delivers improved intermodulation performance and fewer spurious responses for those challenging bands. Features Covers all frequencies from 1 kHz through VLF, LF, MW, HF, VHF, UHF and L-band to 2 GHz, with no gaps Receive, monitor and record up to 10 MHz of spectrum at a time Significantly improved noise performance below 1 MHz (i.e. for some MF, LF and below) Improved dynamic range below 2 MHz both in tuner mode and HDR mode HDR mode below 2 MHz giving overall dynamic range and selectivity advantages Software selectable choice of 3 antenna ports External clock input for synchronisation purposes, or connection to GPS reference clock for extra frequency accuracy Excellent dynamic range for challenging reception conditions Free use of Windows-based SDRuno software (check website for versions supported) Free use of SDRconnect SDR and server software for Windows, MacOS and Linux (Check website for versions supported) Multiplatform driver and API support including Windows, Linux, Mac and Raspberry Pi 4/5 Strong and growing software support network Calibrated S meter/RF power and SNR measurement with SDRuno (including datalogging to .CSV file capability) Documented API provided to allow demodulator or application development on multiple platforms Applications (Amateur) Shortwave radio listening Broadcast DXing (AM/FM/TV) Panadaptor Aircraft (ADS-B and ATC) Slow Scan TV Multi-amateur band monitoring WSPR & digital modes Weather fax (HF and satellite) Satellite monitoring Geostationary environmental satellites Trunked radio Utility and emergency service monitoring Fast and effective antenna comparison Applications (Industrial) Spectrum Analyser Surveillance Wireless microphone monitoring RF surveying IoT receiver chain Signal logging RFI/EMC detection Broadcast integrity monitoring Spectrum monitoring Power measurement Applications (Educational/Scientific) Teaching Receiver design Radio astronomy Passive radar Ionosonde Spectrum analyser Receiver for IoT sensor projects Antenna research Specifications Frequency Range 1 kHz – 2 GHz Antenna Connector SMA Antenna Impedance 50 Ohms Current Consumption (Typical) 190 mA @ >60 MHz (excl. Bias-T)120 mA @ <60 MHz (excl. Bias-T) USB Connector USB-B Maximum Input Power +0 dBm Continuous+10 dBm Short Duration ADC Sample Rates 2-10.66 MSPS ADC Number of Bits 14 bit 2-6.048 MSPS12 bit 6.048-8.064 MSPS10 bit 8.064-9.216 MSPS8 bit >9.216 MSPS Bias-T 4.7 V100 mA guaranteed Reference 0.5ppm 24 MHz TCXOFrequency error trimmable to 0.01ppm in field Operating Temperature −10˚C to +60˚C Dimensions 113 x 94 x 35 mm Weight 315 g Downloads Datasheet Software RSPdx-R2 vs RSPduo RSPdx-R2 RSPduo Continuous coverage from 1 kHz to 2 GHz ✓ ✓ Up to 10 MHz visible bandwidth ✓ ✓ 14-bit ADC silicon technology plus multiple high-performance input filters ✓ ✓ Software selectable AM/FM & DAB broadcast band notch filters ✓ ✓ 4.7 V Bias-T for powering external remote antenna amplifier ✓ ✓ Powers over the USB cable with a simple type B socket ✓ ✓ 50Ω SMA antenna input(s) for 1 kHz to 2 GHz operation (software selectable) 2 2 Additional software selectable Hi-Z input for up to 30 Mhz operation ✓ Additional software selectable 50Ω BNC input for up to 200 MHz operation ✓ Additional LF/VLF filter for below 500 kHz ✓ 24 MHz reference clock input (+ output on RSPduo) ✓ ✓ Dual tuners enabling reception on 2 totally independent 2 MHz ranges ✓ Dual tuners enabling diversity reception using SDRuno ✓ Rugged black painted steel case ✓ ✓ Overall performance below 2 MHz for MW and LF ++ + Multiple simultaneous applications + ++ Performance in challenging fading conditions (*using diversity tuning) + *++
€ 263,00
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Elektor Digital Supersnel PC Interfacen (E-book)
Wilt u in enkele minuten een programma maken op uw PC, dat communiceert met een microcontroller? Dit boek, samen met de Piccolino en gratis software, maakt dat mogelijk! Als hardware wordt gebruik gemaakt van de Piccolino. Dit is een prototype platform met een moderne PIC16F887 microcontroller, dat gebruikt kan worden om razendsnel microcontroller opstellingen te maken. Alle basisvoorzieningen zijn aanwezig op de Piccolino, en door middel van de headers kunnen extra onderdelen eenvoudig aangesloten worden. De Piccolino wordt geprogrammeerd met de krachtige maar eenvoudig te leren gratis programmeertaal JAL. Deze taal wordt zowel door hobbyisten als professionals gebruikt. Bovendien is een serie projectboeken in deze taal verkrijgbaar, en een lesboek waarmee u JAL kunt leren. Aan de PC kant wordt gebruik gemaakt van de eveneens eenvoudig te leren gratis programmeertaal Small Basic van Microsoft. Deze taal is speciaal ontwikkeld om snel Windows programma's te kunnen ontwikkelen, ook voor mensen die weinig of geen PC programmeer ervaring hebben. U leert verschillende technieken om een PC met een microcontroller te laten communiceren zoals losse communicatie, het versterken en verzwakken van signalen, verwerken van valse metingen, master-slave communicatie en synchronisatie met geforceerde reset. Behalve theorie staan in het boek ook 15 leuke en praktische projecten. Door de duidelijke uitleg en instructies kunt u deze projecten zelf uitbreiden en helemaal aan uw eigen wensen aanpassen. Een paar voorbeelden uit het boek: Meet signalen en toon ze op de PC Maak een eigen muis of keyboard besturing. Meet en analyseer componenten (Spoel / Condensator / Transistor / OPAMP) met automatische grafieken op uw PC. Bestuur een servomotor vanaf de PC. Verzamel metingen in de Piccolino en zet ze later over naar uw PC. De combinatie van theorie en praktijkvoorbeelden in dit boek zorgt er voor dat u voor elk interface-probleem een oplossing bij de hand hebt, of weet hoe u er een moet maken.
€ 29,95
Members: € 26,96
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Elektor Bundles Learn Edge AI with Raspberry Pi
This hands-on bundle lets you build real Edge AI applications with the Raspberry Pi Raspberry Pi AI HAT+ (13 TOPS) The Raspberry Pi AI HAT+ (13 TOPS) is an expansion board designed for the Raspberry Pi 5, featuring an integrated Hailo AI accelerator. This add-on offers a cost-effective, efficient, and accessible approach to incorporating high-performance AI capabilities, with applications spanning process control, security, home automation, and robotics. The AI HAT+ connects via the Raspberry Pi 5’s PCIe Gen3 interface. When the Raspberry Pi 5 is running a current version of the Raspberry Pi OS, it automatically detects the onboard Hailo accelerator, making the neural processing unit (NPU) available for AI tasks. Additionally, the rpicam-apps camera applications included in Raspberry Pi OS seamlessly support the AI module, automatically using the NPU for compatible post-processing functions. Raspberry Pi Camera Module 3 Raspberry Pi Camera Module 3 is a compact camera from Raspberry Pi. It offers an IMX708 12-megapixel sensor with HDR, and features phase detection autofocus. Camera Module 3 is available in standard and wide-angle variants, both of which are available with or without an infrared cut filter. Camera Module 3 can be used to take full HD video as well as stills photographs, and features an HDR mode up to 3 megapixels. Its operation is fully supported by the libcamera library, including Camera Module 3’s rapid autofocus feature: this makes it easy for beginners to use, while offering plenty for advanced users. Camera Module 3 is compatible with all Raspberry Pi computers. Book: Edge AI Made Practical – 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. This bundle contains: Book: Edge AI Made Practical Raspberry Pi AI HAT+ (13 TOPS) Raspberry Pi Camera Module 3 Active Cooler for Raspberry Pi 5 FPC Display Cable for Raspberry Pi 5 (300 mm) Elektor Component Kit 40-pin GPIO Header Traffic Light Module LED red 5 V with built-in resistor LED yellow 5 V with built-in resistor LED green 5 V with built-in resistor LED blue 5 V with built-in resistor Breadboard (400 Tie-points) 10 Dupont wires male-female DHT22 sensor module Servo motor Required Raspberry Pi 5
€ 169,95
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Elektor Digital Elektor November/December 2021 (PDF)
IMAGE PROCESSING WITH THE NVIDIA JETSON NANO (PART 2)Image Recognition Using Edge Impulse ELEKTOR JUMPSTARTER NEWSUpcoming Campaigns AN OPEN-SOURCE GPS TRACKING PLATFORMTraccar Maps Vehicle Tracking Without the Need for a Third-Party Cloud Server JOY-IT LCR-T7 MULTI-FUNCTION TESTERTesting Passives, Discrete Semiconductors and IR Remote Controls NOISE SYNTHESIZERFrom Noise to Music with the PRBSynth1 STARTING OUT IN ELECTRONICSEasier than Imagined! ... Continuing with the Coil UNDERSTANDING THE NEURONS IN NEURAL NETWORKS (PART 2)Logical Neurons ISSUES WITH SECURITY? FIGHT FIRE WITH FIRE!Flashbulb-Protected Analogue Memory Add-on For the Tamper-Evident Box LCR METER POSTER BLUETOOTH BEACONS IN PRACTICEBeacons Light the Way Ahead C PROGRAMMING ON RASPBERRY PICommunicating over Wi-Fi (Sample Chapter) EMC PRE-COMPLIANCE TEST FOR YOUR DC-POWERED PROJECT (PART 2)The Hardware and How to Use It HANDS ON THE PARALLAX PROPELLER 2 (PART 5)Inside the Smart Pin MODBUS OVER WLAN (PART 1)Hardware and Programming HOMELAB TOURSWhere the Junior Computer Is Brought to Life Again BUILD YOUR OWN HIGH-PRECISION CALIBRATOR-10 V to +10 V, 0 to 40 mA, 0.001% ARDUINO NANO RP2040 CONNECTRaspberry Pi RP2040 + Wi-Fi + Bluetooth THE PHYSICAL BODY OF ARTIFICIAL INTELLIGENCE ERR-LECTRONICSCorrections, Updates and Readers’ Letters CREATE GUIS WITH PYTHONIntroducing guizero CO2 METER KIT FOR THE CLASSROOMAn ESP8266-Based Device from the University of Applied Sciences Aachen NOSTALGIC MK484 MW/LW RADIO...Always Fun to Build! ELEKTOR @ 60Let There Be Light! HEXADOKUThe Original Elektorized Sudoku
€ 7,50
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Elektor Digital Radio-Baubuch (E-book)
Radio-Baubuch (E-book)
€ 29,80
Members: € 26,82
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Elektor Digital PIC Microcontollers Programmeren (E-book)
Met behulp van de lessen in dit boek leert u hoe u zelf een microcontroller kunt programmeren. We maken daarbij gebruik van JAL, een gratis maar uiterst krachtige programmeertaal voor PIC microcontrollers, die in de hobbywereld erg populair is. We starten aan het absolute begin, en bouwen vandaar de kennis op. U heeft dus geen voorkennis nodig: iedereen kan met dit boek aan de slag. Wanneer u alle lessen volgt (dat wil zeggen: de oefeningen ook daadwerkelijk maakt) dan kunt u wanneer u het boek uit heeft zelf PIC microcontroller programma’s schrijven, en programma’s van anderen lezen. JAL opdrachten U leert de functie van JAL opdrachten zoals include, pin, delay, forever loop, while loop, case, exit loop, repeat until, if then, en het gebruik van functies, procedures en timer- en poortinterrupts. JAL programma’s U laat een LED knipperen, maakt een tijdschakelaar, meet de stand van een potmeter, maakt geluiden, voorkomt contactdender en regelt de helderheid van een LED. En uiteraard leert u debuggen: hoe u in uw programma’s fouten kunt vinden en oplossen. Hardware U leert verschillende onderdelen zoals PIC microcontroller, potmeter en kristal herkennen, en hoe u een PIC microcontroller aan moet sluiten en met uw PC moet verbinden. U maakt hierbij gebruik van een steekbord zodat u de opstelling gemakkelijk kunt aanpassen om verder te experimenteren.
€ 29,95
Members: € 26,96
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Elektor Digital Elektor Septembre/Octobre 2023 (PDF)
Le téléchargement intégral de ce numéro est disponible pour nos membres GOLD et GREEN sur le site Elektor Magazine ! Pas encore membre ? Cliquez ici. Raspberry Pi Pico comme analyseur de spectredes FFT avec du matériel bon marché régulateur de tension linéaire ±40 Vune alimentation de qualité pour l'amplificateur de puissance Fortissimo-100... et d'autres ! la communication sans fil des microcontrôleurs devient flexiblel'EEPROM ouvre des perspectives de mise en réseau pour les microcontrôleurs sans fil 5000 ? à gagner !participez au concours STM32 Wireless Innovation Design Contest 2023 : l'odyssée de l'IAdémarrer avec l'interpréteur de code de ChatGPT LoRa, un couteau suisse (1)le protocole LoRa et ses avantages puit de courant réglable avec générateur d'horloge intégrétestez vos alimentations, convertisseurs de tension et batteries les nouvelles cartes Arduino UNO R4 Minima et WiFi des potentiomètres logarithmiquesqui sont exponentiels ! Carte d'interface pour pilote de moteurUn BoB pour un pilote de moteur à courant continu de 5 A avec une taille de 3×3 mm sur le vifdanger de l'électronique une architecture cellulaire offre-t-elle la plus basse consommation pour l'Internet des objets (IdO) ?caractéristiques énergétiques des technologies LTE-M et NB-IoT pour le déploiement de réseaux étendus à basse consommation (LPWAN) communication sans fil dans les systèmes IoT à l'aide de modules Arduino MKRnormes de communication des modules Arduino pour l'IoT pertes en courant alternatif dans les composants magnétiquesévitez la surchauffe des inductances ! optimiser son déploiement cloud grâce aux appareils de mesure implémentation de Matter : que faut-il pour déployer les appareils Matter ? le YARD Stick Oneun outil de test sans fil pour les fréquences jusqu?à 1 GHz relais à verrouillagedrôle de composant, la série PIC O?Clock ? prendre le pouls du tempsconception d'un récepteur de signaux horaires SDR Due Diligence DirectiveBusiness as Usual Will Not Do démarrer en électronique?amplificateur de tension enregistreur d'infrasons avec l'Arduino Pro Miniun projet extrait du livre 'Arduino & Co.' d'Elektor compteur d'énergie basé sur le cloudavec un module ESP32 et un capteur de tension/courant PZEM-004T guide de programmation Bare-Metal (2)timer précis, UART et débogage Hexadoku
€ 10,95