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A Handbook on DIY Nowadays, security problems are rarely properly solved or correctly addressed. Electronic security is only part of the chain in making a system secure. Electronic security is usually addressed as network or software security, neglecting other aspects, but the chain is only as strong as its weakest link. This book is about electronic hardware security, with an emphasis on problems that you can solve on a shoestring DIY budget. It deals mostly with secure communications, cryptosystems, and espionage. You will quickly appreciate that you can’t simply buy a trustworthy and reliable cryptosystem off the shelf. You will then realise that this applies equally to individuals, corporations, and governments. If you want to increase your electronic security awareness in a world already overcrowded with networks of microphones and cameras, this is a book for you. Furthermore, if you want to do something DIY by designing and expanding upon simple electronic systems, please continue reading. Some of the devices described are already published as projects in the Elektor magazine. Some are still ideas yet to be worked out. Complexity is the main enemy of security, so we'll try to keep to simple systems. Every chapter will analyse real-life espionage events or at least several hypothetical scenarios that will hopefully spark your imagination. The final goal is to build a security-conscious mindset (or “to get into a head of a spy”) which is necessary to recognise possible threats beforehand, to design a truly secure system. Don’t bother reading if: you think you and your secrets are 100% safe and secure you think somebody else can effectively handle your security you think conspiracy theories only exist in theory – Telefunken’s masterpiece the “FS-5000 Harpoon” was built on one!

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Le OWON HDS2202s est un testeur multifonction portable 3 en 1, qui peut être utilisé comme oscilloscope à 2 canaux avec une bande passante de 200 MHz, comme multimètre et comme générateur de signaux. Il est doté d'un écran couleur de 3,5 pouces à fort contraste, adapté à la maintenance en extérieur, aux mesures rapides sur site, à la maintenance automobile, à la détection de puissance, etc. Caractéristiques Oscilloscope + multimètre + générateur de forme d'onde, multifonction en un seul appareil Écran LCD couleur de 3,5 pouces à haute résolution et contraste élevé, adapté à une utilisation en extérieur Batterie au lithium 18650, peut fonctionner en continu pendant 3 à 6 heures Interface USB Type-C, prise en charge des banques d'alimentation, prise en charge logicielle via un PC. Fonction d'auto-étalonnage Prise en charge de SCPI, facilitant le développement secondaire Caractéristiques Bande passante 200 MHz Canaux Oscilloscope 2 voies + générateur 1 voie Fréquence d'échantillonnage 1 Géch/s Méthode d'acquisition Normal, détection de pic Longueur d'enregistrement 8K Ecran LCD de 3,5 pouces Taux de rafraîchissement de la forme d'onde 10 000 wfrm/s Signal d'entrée CC, CA et terre Impédance d'entrée 1 MΩ ±2%, avec parallèle 16pF ±10pF Valeurs d'atténuation sonde 1X,10X,100X,1000X,10000X Tension d'entrée maximale 400 V (DC+AC, PK-PK, impédance d'entrée 1MΩ) (atténuation 10:1 sur la sonde) Limite de bande passante (typique) 20MHz Échelle horizontale 2ns/div - 1000s/div, pas à pas 1 - 2 - 5 Sensibilité verticale 10 mV/div - 10 V/div Résolution verticale 8 bits Type de déclenchement Bord Modes de déclenchement Automatique, Normal, Unique Mesure automatique Fréquence, période, amplitude, maximum, minimum, moyenne, PK-PK Mesure du curseur ΔV, ΔT, ΔT&ΔV entre les curseurs Interface de Communication USB Type-C Caractéristiques du multimètre Résolution maximale 20 000 points Mode de test Tension, courant, résistance, capacité, diode et test de continuité Impédance d'entrée 10 MΩ Tension d'entrée maximale CA 750 V, CC 1 000 V Courant d'entrée maximum CC : 10 A, CA : 10 A. Diode 0-2V Caractéristiques du générateur de forme d'onde Fréquence de sortie Sinus 0,1 Hz - 25 MHz Carré 0,1 Hz - 5 MHz Rampe 0,1 Hz - 1 MHz Impulsion 0,1 Hz - 5 MHz Arbitraire 0,1 Hz - 5 MHz Taux d'échantillonnage 125 Méch/s Canal 1 canal Plage d'amplitude (haute impédance) 20 mVpp - 5 Vpp Longueur de la forme d'onde 8K Résolution verticale 14 bits Impédance de sortie 50Ω Inclus 1x OWON HDS2202s 1x Adaptateur d'alimentation 1x Câble USB 1x Sonde passive 2x câbles à pinces crocodiles 1x Jeu de sondes de multimètre (une rouge et une noire) 1x Manuel d'utilisation 1x Outil de réglage de la sonde Téléchargements Manuel de l'Utilisateur Caractéristiques Protocole SCPI Guide rapide Logiciel

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This book covers a series of exciting and fun projects for the Arduino, such as a silent alarm, people sensor, light sensor, motor control, internet and wireless control (using a radio link). Contrary to many free projects on the internet all projects in this book have been extensively tested and are guaranteed to work! You can use it as a projects book and build more than 45 projects for your own use. The clear explanations, schematics, and pictures of each project make this a fun activity. The pictures are taken of a working project, so you know for sure that they are correct. You can combine the projects in this book to make your own projects. To facilitate this, clear explanations are provided on how the project works and why it has been designed the way it has That way you will learn a lot about the project and the parts used, knowledge that you can use in your own projects. Apart from that, the book can be used as a reference guide. Using the index, you can easily locate projects that serve as examples for the C++ commands and Arduino functionality. Even after you’ve built all the projects in this book, it will still be a valuable reference guide to keep next to your PC.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PbMonitor v1.0A Battery-Monitoring System for UPS and Energy Storage Applications Solar Charge Controller with MPPT (1)Basic Principles of a Solar Controller for Stand-Alone Systems B-Field Integration Magnetometer With Home-Made Sensors Precise or Accurate?Your Instruments Need to Be Both! AD7124 A Precision ADC in PracticeFeatures for Sensor Signal Conditioning PID Control ToolOptimize Your Parameters Easily embedded world 2025 Starting Out in Electronics……Continues with Tone Control Academy Pro BoxBook + Online Course + Hardware Milliohmmeter AdapterUses the Precision of Your Multimeter The Next Leap in SemiconductorsOnward Toward 1.4 nm Through-Hole Technology ConnectorsThe Best of Two Worlds: THR Frequency CounterPortable and Auto-Calibrating Via GPS Analog MetersPeculiar Parts, the Series Stand-Alone Crystal TesterHow Accurate Is Your Clock Source? Low-Cost I²C TesterConnect I²C Devices Directly to Your PC From Life’s ExperienceWho Doesn’t Honor the Small Things? 2025: An AI OdysseyThe Transformative Impact on Software Development Err-lectronicsCorrections, Updates, and Readers’ Letters Raspberry Pi Standalone MIDI Synthesizer (2)Enhancing Our Setup with Intelligence Nortonized Wien Bridge OscillatorSmall Changes Yield Significant Improvements Putting a $0.10 Controller to the TestThe CH32V003 RISC-V Microcontroller and MounRiver Studio in Practice An FPGA-Based Audio Player with Equalizer (2)Adding Volume Control, Advanced Mixing, and a Web Interface

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Mastering Surface Mount Technology takes you on a crash course in techniques, tips and know-how to successfully introduce surface mount technology in your workflow. Even if you are on a budget you too can jumpstart your designs with advanced fine pitch parts. Besides explaining methodology and equipment, attention is given to SMT parts technologies and soldering methods. In a step by step way, several projects introduce you to handling surface mount parts and the required skills to successfully build SMT assemblies. Many practical tips and tricks are disclosed that bring surface mount technology into everyone's reach without breaking the bank.

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From Detector to Software Defined RadioRadio frequency (RF) technology is one of the areas which still allows putting your own ideas into practice. Countless circuit variants with special objectives allow space for meaningful experiments and projects. Many things simply aren’t available off the shelf. Crystal detector radios without their own power source, simple tube receivers with a touch of nostalgia, the first reception attempts at Software Defined Radio, special receivers for amateur radio, all this can be realized with little effort and as a perfect introduction to RF electronics.For a long time, radio construction was the first step into electronics. Meanwhile, there are other ways, especially via computers, microcontrollers, and digital technology. However, the analog roots of electronics are often neglected. Elementary radio technology and easy-to-do experiments are particularly well suited as a learning field for electronics because you can start with the simplest basics here.But the connection to modern digital technology is also obvious, for example, when it comes to modern tuning methods such as PLL and DDS or modern DSP radios.This book aims to give an overview and present a collection of simple RF projects. The author would like to support you to develop your own ideas, to design your own receivers and to test them.

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Mastering the Language and the Development Platform Many people would like to learn Java but getting started is not easy since programming with Java requires at least two things: mastering the programming language and the development environment. With the help of many examples, this book shows how the language is structured. In addition, it employs the Eclipse development environment as an example of a powerful tool to teach developing Java programs. In Basics, the first part of the book, you acquire your Java and Eclipse basic knowledge. This part lays the programming foundations, gives you an overview of Java technology, and shows you what is special about object-oriented programming. In the second part called Java Language, everything revolves around the subtleties of the Java language and this is where the first small Java applications are created, aided by a fine blend of the knowledge part and practical exercises. Java Technology is both the name and the focus of the third part which also introduces you to the rules to observe when programming, what class libraries are and what advantages they have. In addition, you will learn how to test programs, what algorithms are, and how to program them. The fourth part, Java Projects, enables you to apply all the previous elements in an application with a graphical user interface. The project shows how to develop a larger application piece by piece with the Eclipse development environment. The Appendix concludes with a section on frequent errors that can occur when working with Eclipse, and a Glossary.

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Elektor GREEN and GOLD members can download their digital edition here. Not a member yet? Click here. PIO Programming on the Raspberry Pi PicoNine Instructions, Many Possibilities Breaking AI Out of the BrowserUsing AI CLIs to Code, Compile, and Validate Embedded Projects The Scrutiny DebuggerDebug, Visualize, and Test Embedded C/C++ Code Sigfox Breakout Board (1)A Self-Built Radio BoB Low-Noise Power Supply (2)Construction, Assembly, and Practical Implementation Simple Signal Generator Using the RP2040Analog and Digital Signals for Around €10 Navigating the Future of Smart Homes with Matter and Edge AIAre Matter’s Latest Updates and the Rise of Edge AI Finally Giving Engineers the Tools to Build the Intelligent, Seamless Smart Homes Users Have Been Promised? Differential Pressure SensorsPredictive Maintenance in HVAC-Systems Security by DesignEngineering Fundamentals Limit Failure Embedded Security Is No Longer Optional CRA and PQC Are Rewriting Embedded Security PrioritiesWhy Even Small IoT and Industrial Firms Need an Upgrade Plan embedded world 2026An Interview With Benedikt Weyerer, Executive Director of embedded world Hands on with I3CUsing Hardware from ST and Microchip The BLEnky ProjectRapid Prototyping of Bluetooth Low Energy Applications Pulse Width ModulationFrom a Simple On/Off Thermostat to a Smoothed DC Analog Signal AudiotronicsEar-Pleasing Electronics for DIY Construction From Life’s ExperienceRead The F...ing Manual! ESP32 Audio Transceiver Board (Part 4)Tuning the Clocks - And a Wired Option 2026: An AI OdysseyThe 2025 Vibe-Coding Hangover Symmetrical DC LoadDC Load, Static or Dynamic, and Symmetrical Counting Faces with MaixCAMAn Easy Way to Capture Audience Sizes

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L'outil parfait pour des réparations rapides Le HS-01 est un puissant fer à souder intelligent réglable équipé d'un écran OLED intégré de 0,87 pouces qui atteint rapidement des températures comprises entre 80 et 420°C. L'écran affiche toutes les informations essentielles, notamment l'état du niveau de température, la température réglée, la tension d'alimentation et le pourcentage de puissance. Vous pouvez régler la tension d'entrée de 9 à 20 V directement dans le menu selon vos besoins. Le mode veille intégré éteint automatiquement le fer après 30 minutes. Caractéristiques Entrée de 96 W (CC) Puissance PD de 65 W Écran OLED Température constante et chauffage rapide Moulage intégral en métal CNC Sécurité intelligente anti-brûlure Format de poche mini Design ergonomique Matériau en aluminium Interrupteur pour main gauche/droite Évacuation de chaleur efficace Veille inductive Couleur : Noir Spécifications Puissance 65 W Écran OLED de 0,87 pouce Tension de fonctionnement 9-20 VCC Alimentation électrique USB-C Plage de température 80-420°C Protocole de charge rapide Déclenchement PD Dimensions 184 x 20 x 20 mm (7,24 x 0,79 x 0,79 pouces) Poids 56 g Sélection de la puissance Tension de fonctionnement 20 V 15 V 12 V 9 V Courant de fonctionnement ≥3,25 A ≥2,5 A ≥2 A ≥1,5 A Puissance 65 W 37,5 W 24 W 13,5 W Temps de fusion de l'étain 8 s 12 s 17 s 30 s Inclus 1x Fer à souder intelligent FNRISI HS-01 6x Embouts de fer à souder (HS01-BC2, HS01-KR, HS01-K65, HS01-B2, HS01-ILS, HS01-BC3) 1x Câble d'alimentation CC vers USB-C 1x Support de fer à souder mini 1x Manuel Requis Adaptateur secteur Câble USB-C Téléchargements Manual Firmware V0.3.s19

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Mastering the I²C Bus takes you on an exploratory journey of the I²C Bus and its applications. Besides the Bus protocol, plenty of attention is given to the practical applications and designing a stable system. The most common I²C compatible chip classes are covered in detail. Two experimentation boards are available that allow for rapid prototype development. These boards are completed by a USB to I²C probe and a software framework to control I²C devices from your computer. All samples programs can be downloaded from the 'Attachments/Downloads' section on this page. Projects built on Board 1: USB to I²C Interface, PCA 9534 Protected Input, PCA 9534 Protected Output, PCA 9553 PWM LED Controller, 24xxx EEPROM Module, LM75 Temperature Sensor, PCA8563 Real-time Clock with Battery Backup, LCD and Keyboard Module, Bus Power Supply. Projects built on Board 2: Protected Input, Protected Output, LM75 Temperature Sensor, PCF8574 I/O Board, SAA1064 LED Display, PCA9544 Bus Expander, MCP40D17 Potentiometer, PCF8591 AD/DA, ADC121 A/D Converter, MCP4725 D/A Converter, 24xxx EEPROM Module.

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Practical Applications and Project with Arduino, ESP32, and RP2040 Immerse yourself in the fascinating world of control engineering with Arduino and ESP32! This book offers you a practical introduction to classic and modern control methods, including PID controllers, fuzzy logic, and sliding-mode controllers. In the first part, you will learn the basics of the popular Arduino controllers, such as the Arduino Uno and the ESP32, as well as the integration of sensors for temperature and pH measurement (NTC, PT100, PT1000, and pH sensor). You will learn how to use these sensors in various projects and how to visualize data on a Nextion TFT display. The course continues with an introduction to actuators such as MOSFET switches, H-bridges, and solid-state relays, which are used to control motors and actuators. You will learn to analyze and model controlled systems, including PT1 and PT2 control. The book focuses on the implementation of fuzzy and PID controllers for controlling temperature and DC motors. Both the Arduino Uno and the ESP32 are used. The sliding-mode controller is also introduced. In the second-to-last chapter, you will explore the basics of neural networks and learn how machine learning can be used on an Arduino. In the last chapter, there is a practical example of a fuzzy controller for feeding electricity into the household grid. This book is the perfect choice for engineers, students, and electronics engineers who want to expand their projects with innovative control techniques.

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