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).

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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).

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Das OWON SDS1104 Oszilloskop ist eine praktische Wahl für Ingenieure, Techniker, Studierende und Hobbyelektroniker, die eine präzise Signalanalyse benötigen, ohne in teure High-End-Messgeräte investieren zu müssen. Mit einer Bandbreite von 100 MHz und einer Abtastrate von 1 GSa/s erfasst es Signale im niedrigen bis mittleren Frequenzbereich zuverlässig und eignet sich damit ideal für Elektronikentwicklung, Fehlersuche und den Einsatz in der Ausbildung. Ausgestattet mit einem 7-Zoll-Farb-TFT-Display bietet das SDS1104 eine klare Darstellung von Signalverläufen. Automatische Messfunktionen und FFT-Analyse helfen Anwendern dabei, Frequenz-, Spannungs- und Zeitparameter schnell zu bewerten. Erweiterte mathematische Funktionen, Cursor-Messungen und mehrere Trigger-Modi sorgen für zusätzliche Flexibilität und machen das Oszilloskop zu einem vielseitigen Werkzeug für unterschiedlichste Testszenarien. Technische Daten Bandwidth 100 MHz Sample Rate 1 GS/s Horizontal Scale (s/div) 5ns/div - 1000s/div, step by 1 - 2 - 5 Channel 4 Display 7" color LCD, 800 x 480 pixels Input Coupling DC, AC and GND Vertical Resolution (A/D) Vertical Resolution (A/D) Vertical Sensitivity 5mV/div - 5V/div (at input) Trigger Type Edge, Video Trigger Mode Auto, Normal and Single Waveform Math ＋, －, x, ÷, invert, FFT Fuse 2A, T class, 250 V Dimension (W x H x D) 301 x 152 x 70 mm Weight 1.1 kg Lieferumfang 1x OWON SDS1104 Oscilloscope 1x Mains power cord 1x CD Rom 1x Quickstart Guide 1x USB Cable 4x Oscilloscope probe 1x Probe Adjust Downloads Datasheet Manual

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Learn to use Python productively in real-life scenarios at work and in everyday life If you have mastered the basics of Python and are wanting to explore the language in more depth, this book is for you. By means of concrete examples used in different applications, the book illustrates many aspects of programming (e.g. algorithms, recursion, data structures) and helps problem-solving strategies. Including general ideas and solutions, the specifics of Python and how these can be practically applied are discussed. Python 3 for Science and Engineering Applications includes: practical and goal-oriented learning basic Python techniques modern Python 3.6+ including comprehensions, decorators and generators complete code available online more than 40 exercises, solutions documented online no additional packages or installation required, 100% pure Python Topics cover: identifying large prime numbers and computing Pi writing and understanding recursive functions with memorisation computing in parallel and utilising all system cores processing text data and encrypting messages comprehending backtracking and solving Sudokus analysing and simulating games of chance to develop optimal winning strategies handling genetic code and generating extremely long palindromes Downloads Software

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Create Models for 3D Printing, CNC Milling, Process Communication and Documentation Engineers dread designing 3D models using traditional modeling software. OpenSCAD takes a refreshing and completely different approach. Create your models by arranging geometric solids in a JavaScript-like language, and use them with your 3D printer, CNC mill, or process communication. OpenSCAD differs from other design systems in that it uses programmatical modeling. Your model is made up of primitives that are invoked using a C-, Java- or Python-like language. This approach to model design is close to the “mechanical work” done in the real world and appeals to engineers and others who are not a member of the traditional creative class. OpenSCAD also provides a wide variety of comfort functions that break the 1:1 relationship between code and geometry. This book demonstrates the various features of the programming language using practical examples such as a replacement knob for a LeCroy oscilloscope, a wardrobe hanger, a container for soap dispensers, and various other real-life examples. Written by an engineer with over 15 years of experience, this book is intended for Linux and Windows users alike. If you have programming experience in any language, this book will have you producing practical three-dimensional objects in short order!

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STmicroelectronics’ wireless IoT & wearable sensor development kit ‘SensorTile.box’ is a portable multi-sensor circuit board housed in a plastic box and developed by STMicroelectronics. It is equipped with a high-performance 32-bit ARM Cortex-M4 processor with DSP and FPU, and various sensor modules, such as accelerometer, gyroscope, temperature sensor, humidity sensor, atmospheric pressure sensor, microphone, and so on. SensorTile.box is ready to use with wireless IoT and Bluetooth connectivity that can easily be used with an iOS or Android compatible smartphone, regardless of the level of expertise of the users. SensorTile.box is shipped with a long-life battery and all the user has to do is connect the battery to the circuit to start using the box. The SensorTile.box can be operated in three modes: Basic mode, Expert mode, and Pro mode. Basic mode is the easiest way of using the box since it is pre-loaded with demo apps and all the user has to do is choose the required apps and display or plot the measured data on a smartphone using an app called STE BLE Sensor. In Expert mode users can develop simple apps using a graphical wizard provided with the STE BLE Sensor. Pro mode is the most complex mode allowing users to develop programs and upload them to the SensorTile.box. This book is an introduction to the SensorTile.box and includes the following: Brief specifications of the SensorTile.box; description of how to install the STE BLE Sensor app on an iOS or Android compatible smartphone required to communicate with the box. Operation of the SensorTile.box in Basic mode is described in detail by going through all of the pre-loaded demo apps, explaining how to run these apps through a smartphone. An introduction to the Expert mode with many example apps developed and explained in detail enabling users to develop their own apps in this mode. Again, the STE BLE Sensor app is used on the smartphone to communicate with the SensorTile.box and to run the developed apps. The book then describes in detail how to upload the sensor data to the cloud. This is an important topic since it allows the sensor measurements to be accessed from anywhere with an Internet connection, at any time. Finally, Pro mode is described in detail where more experienced people can use the SensorTile.box to develop, debug, and test their own apps using the STM32 open development environment (STM32 ODE). The Chapter explains how to upload the developed firmware to the SensorTile.box using several methods. Additionally, the installation and use of the Unicleo-GUI package is described with reference to the SensorTile.box. This PC software package enables all of the SensorTile.box sensor measurements to be displayed or plotted in real time on the PC.

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Dieses Buch nimmt Sie mit auf eine spannende Tour durch die Entwicklung von Full-Stack-Webanwendungen mit Raspberry Pi. Sie lernen, wie Sie eine Anwendung von Grund auf erstellen. Sie erwerben Erfahrung und Wissen über Technologien, darunter: Das Linux-Betriebssystem und die Befehlszeile. Die Programmiersprache Python. Die GPIOs (General Purpose Input Output Pins) des Raspberry Pi. Der Nginx-Webserver. Flask Python-Mikroframework für Webanwendungen. JQuery und CSS zum Erstellen von Benutzeroberflächen. Umgang mit Zeitzonen. Erstellen von Diagrammen mit Plotly und Google Charts. Datenerfassung mit Google Sheet. Entwickeln von Applets mit IFTTT. Sichern Sie Ihre Anwendung mit SSL. Empfangen Sie mit Twilio Textnachrichten auf Ihrem Telefon. In diesem Buch erfahren Sie außerdem, wie Sie einen drahtlosen Arduino-Sensorknoten aus der Ferne einrichten und Daten von ihm sammeln. Ihre Raspberry Pi-Webanwendung kann Arduino-Knotendaten auf die gleiche Weise verarbeiten, wie sie Daten von ihrem integrierten Sensor verarbeitet. Raspberry Pi Full Stack vermittelt Ihnen viele Fähigkeiten, die für die Erstellung von Web- und Internet-of-Things-Anwendungen unerlässlich sind. Die Anwendung, die Sie in diesem Projekt erstellen, ist eine Plattform, die Sie erweitern können. Dies ist nur der Anfang dessen, was Sie mit einem Raspberry Pi und den Software- und Hardwarekomponenten tun können, die Sie lernen werden. Dieses Buch wird vom Autor durch einen eigenen Diskussionsbereich unterstützt.

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Secure, Modular, Open-Source and Self-Sufficient Ever since the Raspberry Pi was introduced, it has been used by enthusiasts to automate their homes. The Raspberry Pi is a powerful computer in a small package, with lots of interfacing options to control various devices. This book shows you how you can automate your home with a Raspberry Pi. You’ll learn how to use various wireless protocols for home automation, such as Bluetooth, 433.92 MHz radio waves, Z-Wave, and Zigbee. Soon you’ll automate your home with Python, Node-RED, and Home Assistant, and you’ll even be able to speak to your home automation system. All this is done securely, with a modular system, completely open-source, without relying on third-party services. You’re in control of your home, and no one else. At the end of this book, you can install and configure your Raspberry Pi as a highly flexible home automation gateway for protocols of your choice, and link various services with MQTT to make it your own system. This DIY (do it yourself) approach is a bit more laborious than just installing an off-the-shelf home automation system, but in the process, you can learn a lot, and in the end, you know exactly what’s running your house and how to tweak it. This is why you were interested in the Raspberry Pi in the first place, right? Turn your Raspberry Pi into a reliable gateway for various home automation protocols. Make your home automation setup reproducible with Docker Compose. Secure all your network communication with TLS. Create a video surveillance system for your home. Automate your home with Python, Node-RED, Home Assistant and AppDaemon. Securely access your home automation dashboard from remote locations. Use fully offline voice commands in your own language. Download the software and view the errata for the book on GitHub.

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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.

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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

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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

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Das Weller WT 1013 Lötstationsset beinhaltet die Versorgungseinheit WT 1, den Lötkolben WP 80 und die Sicherheitsablage WSR 201. Es ist stapelbar und schafft so mehr Platz am Arbeitsplatz. Durch einen integrierten Nutzungssensor schaltet sich das Lötgerät automatisch ab. Technische Daten Kanäle 1 Stromspannung 230 V Leistung 95 W Anzeige Hintergrundbeleuchtetes LCD Temperaturbereich 50°C - 450°C Temperaturstabilität ±2 °C Temperaturgenauigkeit ±9 °C Sicherung 0,5 A Potenzialausgleich An WT-kompatibel An ESD-sicher An Stromkabel EMEA Maße 149 x 138 x 101 mm Gewicht ca.) 1,9 kg

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Programming the Finite State Machine with 8-Bit PICs in Assembly and C Andrew Pratt provides a detailed introduction to programming PIC microcontrollers, as well as a thorough overview of the Finite State Machine (FSM) approach to programming. Most of the book uses assembly programming, but do not be deterred. The FSM gives a structure to a program, making it easy to plan, write, and modify. The last two chapters introduce programming in C, so you can make a direct comparison between the two techniques. The book references the relevant parts of the Microchip datasheet as familiarity with it is the best way to discover detailed information. This book is aimed at Microsoft Windows and Linux users. To keep your costs to a minimum and to simplify the toolchain, specific applications are provided as a free download to enable you to use an FTDI serial lead as the programmer. The assembler used is the open-source "gpasm". All programming can be done in a text editor. There are detailed instructions on how to perform the necessary installations on Windows, Linux Debian, and derivatives such as Ubuntu and Fedora. For programming in C, Microchip's XC8 compiler is used from the command line. In addition to the programming applications, two serial read and serial write applications can be used for communicating with the PICs from a computer. A voltmeter project including practical instructions on building a circuit board from scratch is included. All theory is covered beforehand, including how to do integer arithmetic in assembly. Two PICs are covered: the PIC12F1822 and the PIC16F1823. Both can run at 32 MHz with an internal oscillator. You do not need to buy a factory-made development board and programmer. With relatively inexpensive parts including a serial lead, microcontroller, a few resistors, and LEDs, you can get started exploring embedded programming. Links Updated Programmer

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The OWON VDS6000 Series PC Oscilloscope combines powerful performance with a sleek, ultra-thin design. With 100 MHz bandwidth, 1 GSa/s real-time sampling, and up to 14-bit resolution, it delivers highly accurate measurements. The built-in 5 MHz function generator, USB-C power supply, and optional WiFi connectivity make it incredibly versatile. Compatible with Windows, Linux, Android, and iOS, the VDS6000 is perfect for labs, fieldwork, and remote diagnostics – compact, flexible, and ready for any challenge. Features Bandwidth: 100 MHz Vertical resolution: 14 bits Rise time: ≤3.5 ns Memory: 10 Mpts Number of channels: 2 channels + 1 channel function generator Horizontal scale: 5ns - 100s/div Sample rate: Max. 1 GSa/s Maximum voltage: 40 V (peak - peak) Automatic measurements: Vpp, Vavg, Vamp, Vrms, Freq, Period, Vmax, Vmin, Vtop, Vbase, Overshoot, Preshoot, Rise Time, Connectivity: USB-C, LAN, Wifi (optional) Fall Time, Delay A→B↑, Delay A→B↓, +Width, -Width, +Duty, -Duty Bandwidth: 5 MHz Sample rate: 25 MSa/s Standard waveforms: Sine (0.1 Hz - 5 MHz), Square (0.1 Hz - 200 kHz), Ramp (1 Hz - 10 kHz), Pulse (1 Hz - 10 kHz) Resolution: 10 bits DC offset range (AC + DC): ±2.5 V Amplitude range: 10 mVpp - 5 Vpp Dimensions: 190 x 120 x 18 mm Weight: 380 g Downloads Manual Quick Guide PC Software MacOS Software

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The OWON XDM2041 is a low-cost, high-precision benchtop multimeter. The meter has a True RMS function to measure the AC voltage and current and it has a reading speed of up to 65 values per second. Also, the XDM2041 is equipped with functions such as measuring 2-wire and 4-wire resistance. The XDM2041 is able to store data internally in the memory of the meter and display it on the 3.7" high-resolution LCD display. Up to 1000 points can be stored and the time interval can be varied from 15ms to 9999s. By means of the RS232 port on the back of the device, the meter can be programmed and controlled via SCPI. Technische Daten Measurement Range Resolution Accuracy ±(% of reading + LSB) DC Voltage 50.000mV 0.001mV 0.1%+10 500.00mV 0.01mV 0.025%+5 5.0000V 0.0001V 0.025%+5 50.000V 0.001V 0.03%+5 500.00V 0.01V 0.1%+5 1000.0V 0.1V 0.1%+5 AC Voltage 500mv-750v 20Hz~45Hz 1%+30 45Hz~65Hz 0.5%+30 65Hz~1KHz 0.7%+30 DC Current 500uA 0.01uA 0.15%+20 5000uA 0.1uA 0.15%+10 50mA 0.001mA 0.15%+20 500mA 0.01mA 0.15%+10 5A 0.0001A 0.5%+10 10A 0.001A 0.5%+10 AC Current 500uA-500mA 20 Hz-1 kHz 0.5%+20 5A-10A 1.5%+20 Resistance 500Ω 0.01Ω 0.1%+10 5KΩ 0.0001KΩ 0.1%+5 50KΩ 0.001KΩ 0.1%+5 500KΩ 0.01KΩ 0.1%+5 5MΩ 0.0001MΩ 0.25%+5 50MΩ 0.001MΩ 0.1%+10 Four-wire resistance 500Ω 0.01Ω 0.1%+10 5KΩ 0.0001KΩ 0.1%+5 50KΩ 0.001KΩ 0.1%+5   Measurement Range Resolution Accuracy ±(% of reading + % of range) Frequency 10.000Hz-60MHz / ±(0.2%+8) Capacitance 50nF-500uF / 2.5%+5 5mF-50mF 5%+8 Diode 3.0000 V 0.0001V / Continuity 1000 Ω 0.1Ω / Temperature K type，PT100 Display 55,000 Data-logging Function Logging Duration 15ms-9999s Logging Length 1,000 points Lieferumfang 1x OWON XDM2041 Multimeter 2x Multimeter leads 2x Alligator clips 1x Fuse 1x Manual Downloads User manual Programming manual PC software

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Ready to explore the world around you? By attaching the Sense HAT to your Raspberry Pi, you can quickly and easily develop a variety of creative applications, useful experiments, and exciting games. The Sense HAT contains several helpful environmental sensors: temperature, humidity, pressure, accelerometer, magnetometer, and gyroscope. Additionally, an 8x8 LED matrix is provided with RGB LEDs, which can be used to display multi-color scrolling or fixed information, such as the sensor data. Use the small onboard joystick for games or applications that require user input. In Innovate with Sense HAT for Raspberry Pi, Dr. Dogan Ibrahim explains how to use the Sense HAT in Raspberry Pi Zero W-based projects. Using simple terms, he details how to incorporate the Sense HAT board in interesting visual and sensor-based projects. You can complete all the projects with other Raspberry Pi models without any modifications. Exploring with Sense HAT for Raspberry Pi includes projects featuring external hardware components in addition to the Sense HAT board. You will learn to connect the Sense HAT board to the Raspberry Pi using jumper wires so that some of the GPIO ports are free to be interfaced to external components, such as to buzzers, relays, LEDs, LCDs, motors, and other sensors. The book includes full program listings and detailed project descriptions. Complete circuit diagrams of the projects using external components are given where necessary. All the projects were developed using the latest version of the Python 3 programming language. You can easily download projects from the book’s web page. Let’s start exploring with Sense HAT.

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50+ Android Apps with Raspberry Pi, ESP32 and Arduino This book is about developing apps for Android compatible mobile devices using the MIT App Inventor online development environment. MIT App Inventor projects can be in either standalone mode or use an external processor. In standalone mode, the developed application runs only on the mobile device (e.g. Android). In external processor-based applications, the mobile device communicates with an external microcontroller-based processor, such as Raspberry Pi, Arduino, ESP8266, ESP32, etc. In this book, many tested and fully working projects are given both in standalone mode and using an external processor. Full design steps, block programs, circuit diagrams, QR codes and full program listings are given for all projects. The projects developed in this book include: Using the text-to-speech component Intonating a received SMS message Sending SMS messages Making telephone calls using a contacts list Using the GPS and Pin-pointing our location on a map Speech recognition and speech translation to another language Controlling multiple relays by speech commands Projects for the Raspberry Pi, ESP32 and Arduino using Bluetooth and Wi-Fi MIT APP Inventor and Node-RED projects for the Raspberry Pi The book is unique in that it is currently the only book that teaches how to develop projects using Wi-Fi and Node-RED with MIT App Inventor. The book is aimed at students, hobbyists, and anyone interested in developing apps for mobile devices. All projects presented in this book have been developed using the MIT App Inventor visual programming language. There is no need to write any text-based programs. All projects are compatible with Android-based mobile devices. Full program listings for all projects as well as detailed program descriptions are given in the book. Users should be able to use the projects as they are presented, modifying them to suit their own needs.

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Features 4 1/2 Bit Auflösung (20000 Zählungen) Datenlogger Multimeter Thermometer True RMS Test unterstützt BLE 4.0 drahtlose Übertragung, stabiler, weniger Stromverbrauch Integrierte Offline-Aufzeichnungsfunktion Chart und Diagramm-Modus hilft bei der Analyse der Daten Tendenz Taschenlampenfunktion erhellt die Dunkelheit Unterstützt NCV berührungslose Spannungsmessung Weitgehend unterstützt auf Android, iOS, Windows Lieferumfang OWON OW18E Multimeter Kurzanleitung Multimeterleitung Thermoelement Typ K Bolzen-Treiber App Download Die Bluetooth-Funktion dieses Multimeters ist mit der Android-App Version 1.5.8.0 oder neuer kompatibel. Verwenden Sie den QR-Code in der Box oder nutzen Sie http://files.owon.com.cn/bluetooth.

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All you need to know about good acoustics and sound systems in performance and worship spaces! Everyone knows that the ability to hear music in balance and to understand speech is essential in any space used for performance or worship. Unfortunately, in the early 21st century, we find that buildings with good acoustics are the exception rather than the rule. Much of the fault leading to this result can be traced to the widespread perception that acoustics is a black art. In fact, scientific acoustics as developed in the last century is a well-defined engineering practice that can lead to predictable excellent results. A basic, non-engineering understanding of acoustics will help building owners, theater managers, ministers and teachers of music, performers, and other professionals to achieve their goals of excellent acoustics in venues with which they work. Performers having a basic understanding of acoustics will be able to make the most of the acoustics of the venue in which they perform. This book helps those responsible for providing good acoustics in performance and worship spaces to understand the variables and choices entailed in proper acoustic design for performance and worship. Practicing acoustical consultants will find the book a useful reference as well. The level of presentation is comfortable and straightforward without being simplistic. If correct acoustical principles are incorporated into the design, renovation, and maintenance of performance and worship venues, good acoustics will be the result.

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