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Sound Secrets and Technology What would today’s rock and pop music be without electric lead and bass guitars? These instruments have been setting the tone for more than sixty years. Their underlying sound is determined largely by their electrical components. But, how do they actually work? Almost no one is able to explain this to the true musician with no technical background. This book answers many questions simply, in an easily-understandable manner. For the interested musician (and others), this book unveils, in a simple and well-grounded way, what have, until now, been regarded as manufacturer secrets. The examination explores deep within the guitar, including pickups and electrical environment, so that guitar electronics are no longer considered highly secret. With a few deft interventions, many instruments can be rendered more versatile and made to sound a lot better – in the most cost-effective manner. The author is an experienced electronics professional and active musician. He has thoroughly tested everything described here, in practice.

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This adjustable circuit board holder is ideal for clamping PCB for soldering, desoldering or rework. Features 2 adjustable grips on a retractable stand to accommodate various board sizes. The adjustable clamps allow the PCB to rotate 360 degrees and stay set in any position. The base of this rigid metal stand features four rubber feet to ensure stability. Specifications Product size 30 x 16.5 x 12.5 cm Max. holding size 20 x 14 cm Weight 450 g

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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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De werking van veruit de meeste moderne elektronische apparaten is niet slechts op één enkel principe gebaseerd. Vaak staat een of andere computer (doorgaans een microcontroller) centraal. Uit deze fundamentele opzet – een computer die is ingebed in een bepaalde toepassingsschakeling – is de algemene benaming Embedded Systems voortgekomen. De meeste van deze systemen moeten vanuit het niets worden ontwikkeld, en daarbij komt het op elk detail aan. Vindingrijkheid en veelzijdigheid zijn dan een vereiste. De problemen die opgelost moeten worden, vormen niet zelden een ware uitdaging en betreffen niet alleen de analoge en digitale elektronica maar ook de systeemarchitectuur, programmering en programma-organisatie. De delen van deze reeks zijn geschreven voor iedereen – leerling, student of beginnend elektronicus – die zich terdege wil bekwamen in de professionele hardware- en systeemontwikkeling. En ze richten zich tot de allround-elektronicus die geen tijd heeft om specialist op een van de vele deelgebieden te worden maar die weet dat hij met standaard huis-, tuin- en keukenoplossingen niet ver komt. Ze bieden wat studenten en professionele elektronici nodig hebben: een opfrissing en verdieping van de basiskennis, een bron van inspiratie en een schat aan details en spitsvondigheden. Dit deel behandelt de theoretische principes en de basisschakelingen van digitale technieken: signalen, bits en binaire getallen propositielogica en Booleaanse algebra schakelalgebra het vereenvoudigen van schakelingen combinatorische en sequentiële schakelingen parameters halfgeleidertechnologieën signaalwegen geïntegreerde schakelingen impulsen kloksystemen initialisatie combinatorische basisschakelingen latches en flipflops registers adresseerbare geheugens sequentiële basisschakelingen

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Er zijn niet zoveel boeken te vinden over het ontwerpen en bouwen van zenders met een klein uitgangsvermogen. Dit boek beschrijft nauwkeurig de werking en bouw van maar liefst twintig audio- en videozender(tje)s. Daarmee biedt het aan de amateur-elektronicus, technicus, zendamateur en andere radio-enthousiasten het noodzakelijke materiaal om zich verder te bekwamen op dit gebied. Er wordt slechts weinig aandacht besteed aan de theorie, maar dat heeft een groot voordeel: ruim 300 pagina’s vol praktijk. De zenders, sommige eenvoudig, andere meer gecompliceerd, werden speciaal ontworpen voor het gebruik door amateurs. Ze werken tussen 150 kHz en 1300 MHz. De gebruikte techniek dateert vooral uit de jaren 90. Dit mag op het eerste gezicht een tekortkoming lijken, maar het is juist een extra argument voor publicatie. De technieken hebben zich inmiddels bewezen en er worden eenvoudige, goedkope en nog steeds goed verkrijgbare onderdelen gebruikt. Dit boek richt zich dus in de eerste plaats tot de potentiële gebruiker van HF-technieken, die er niet voor terugschrikt om dit soort schakelingen in elkaar te zetten. De schakelingen zijn probleemloos na te bouwen (nog een voordeel van zich bewezen technieken). Om dat te bereiken hebben de auteurs veel aandacht besteed aan: de testprocedures voor elke schakeling, de onderdelenlijst, instructies voor het vervaardigen van de spoelen en voor de afregeling. Bij de meeste schakelingen is bovendien een printontwerp afgedrukt. Naast zenders voor o.a. FM-stereo, AM, VHF-FM-amateur, R/C-TV, 40-m-CW-zender, 10-m-SSB, 2-m-NBFM, FM-video-link en amateur-TV vindt u in dit boek ook verwante schakelingen, zoals een down-converter voor 400, 900 en 1300 MHz en een HF-vermogensmeter.

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Components are both shrinking and getting increasingly finer pitch year after year but your PCBs might have grown in size or the number of interconnected PCBs or the number of handsfree PCBite probes needed to test your design may have increased making it crowded on our other smaller base plates. Features With a size of 297 x 420 mm (DIN A3) the extra large baseplate has room for most PCBs and many handsfree PCBite probes for those measurements sessions where more channels than available is needed. So if you are looking for more space, extra protection or just want to clean up your work surface then this accessory is a perfect match. Designed to be used with Sensepeeks magnetic PCBite line of products including PCB holders, hands free probes and magnifier. Included 1x XL base plate (DIN A3) with pre-fitted insulation cover

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SIGLENT’s SDS1000X-E Series Super Phosphor Oscilloscope is available in one bandwidth, 200 MHz. It has a maximum sample rate of 1 GSa/s and a standard record length of 1 Mpts. For ease-of-use, the most commonly used functions can be accessed with its user-friendly front panel design. The SDS1000X-E series employs a new generation of SPO (Super Phosphor Oscilloscope) technology that provides excellent signal fidelity and performance. The system noise is also lower than similar products in the industry. It comes with a minimum vertical input range of 500 uV/div, an innovative digital trigger system with high sensitivity and low jitter, and a waveform capture rate of 400,000 frames/ sec (sequence mode). The SDS1000X-E also employs a 256-level intensity grading display function and a color temperature display mode not found in other models in this class. Siglent’s latest oscilloscopes offering supportsmultiple powerful triggering modes including serial bus triggering. Decoding is standard configuration including IIC,SPI,UART,CAN,LIN. History waveform recording and sequential triggering enable extended waveform recording and analysis. Another powerful addition is the new 1 million points FFT math function that gives the SDS1000X-E very high frequency resolution when observing signal spectra. The new design also includes a hardware co-processor that delivers measurements quickly and accurately. The features and performance of Siglent’s new SDS1000X-E cannot be matched anywhere else in this price class. Specifications Bandwidth 200 MHz Channels 2CH+1EXT Real time sampling rate 1 GSa/s Memory depth 7 Mpts/CH (Dual-Channel); 14 Mpts/CH (Single-Channel) Waveform Capture Rate (Max.) 100,000 wfm/s (normal mode); 400,000 wfm/s (sequence mode) Serial Trigger (Standard) I²C, SPI, UART/RS232, CAN, LIN Decode Type (Standard) I²C, SPI, UART/RS232, CAN, LIN Trigger Type Edge, Slope, Pulse Width, Window, Runt, Interval, Dropout, Pattern, Video Probe (Std) 2 pcs passive probe PP215 Display 7 inch TFT-LCD (800x480) Weight Without package 2.5 kg; with package 3.5 kg Downloads Datasheet Manual Programming Guide

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The QAV250 Kit is the perfect way to get started developing on either PX4 or Ardupilot. It pairs a carbon fiber 250 racing frame and essential electronics with Pixhawk 6C mini autopilot. The kit is easy to assemble. No soldering needed. Specifications Micro Power Module (PM06 v2) Motors: 2207 KV1950 Wheelbase: 250 mm Dimensions: 198 x 235 x 70 mm Weight: 347 g Included Carbon fiber 250 airframe with hardware Micro Power Module (PM06 v2) Motors: 2207 KV1950 5' Plastic Props Fully assembled Power Management Board with ESCs (BLHeli S ESC 20A) Battery Straps Note: LiPo battery is not included.

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World’s Most Popular ROS Platform TurtleBot is the most popular open source robot for education and research. The new generation TurtleBot3 is a small, low cost, fully programmable, ROS based mobile robot. It is intended to be used for education, research, hobby and product prototyping. Affordable Cost TurtleBot was developed to meet the cost-conscious needs of schools, laboratories and companies. TurtleBot3 is the most affordable robot among the SLAM-able mobile robots equipped with a 360° Laser Distance Sensor LDS-01. ROS Standard The TurtleBot brand is managed by Open Robotics, which develops and maintains ROS. Nowadays, ROS has become the go-to platform for all the roboticists around the world. TurtleBot can be integrated with existing ROS-based robot components, but TurtleBot3 can be an affordable platform for whom want to get started learning ROS. Extensibility TurtleBot3 encourages users to customize its mechanical structure with some alternative options: open source embedded board (as a control board), computer and sensors. TurtleBot3 Waffle Pi is a two-wheeled differential drive type platform but it is able to be structurally and mechanically customized in many ways: Cars, Bikes, Trailers and so on. Extend your ideas beyond imagination with various SBC, sensors and motors on a scalable structure. Modular Actuator for Mobile Robot TurtleBot3 is able to get a precise spatial data by using 2 DYNAMIXEL’s in the wheel joints. DYNAMIXEL XM series can be operated by one of 6 operating modes (XL series: 4 operating modes): Velocity control mode for wheels, Torque control mode or Position control mode for joint, etc. DYNAMIXEL can be used even to make a mobile manipulator which is light but can be precisely controlled with velocity, torque and position control. DYNAMIXEL is a core component that makes TurtleBot3 perfect. It is easy to assemble, maintain, replace and reconfigure. Open Control Board for ROS The control board is open-sourced in hardware wise and in software wise for ROS communication. The open source control board OpenCR1.0 is powerful enough to control not only DYNAMIXEL’s but also ROBOTIS sensors that are frequently being used for basic recognition tasks in cost effective way. Various sensors such as Touch sensor, Infrared sensor, Color sensor and a handful more are available. The OpenCR1.0 has an IMU sensor inside the board so that it can enhance precise control for countless applications. The board has 3.3 V, 5 V, 12 V power supplies to reinforce the available computer device lineups. Open Source The hardware, firmware and software of TurtleBot3 are open source which means that users are welcomed to download, modify and share source codes. All components of TurtleBot3 are manufactured with injection molded plastic to achieve low cost, however, the 3D CAD data is also available for 3D printing. Specifications Maximum translational velocity 0.26 m/s Maximum rotational velocity 1.82 rad/s (104.27 deg/s) Maximum payload 30 kg Size (L x W x H) 281 x 306 x 141 mm Weight (+ SBC + Battery + Sensors) 1.8 kg Threshold of climbing 10 mm or lower Expected operating time 2h Expected charging time 2h 30m SBC (Single Board Computers) Raspberry Pi 4 (2 GB RAM) MCU 32-bit ARM Cortex-M7 with FPU (216 MHz, 462 DMIPS) Remote Controller RC-100B + BT-410 Set (Bluetooth 4, BLE) Actuator XL430-W210 LDS (Laser Distance Sensor) 360 Laser Distance Sensor LDS-01 or LDS-02 Camera Raspberry Pi Camera Module v2.1 IMU Gyroscope 3 AxisAccelerometer 3 Axis Power connectors 3.3 V/800 mA5 V/4 A12 V/1 A Expansion pins GPIO 18 pinsArduino 32 pin Peripheral 3x UART, 1x CAN, 1x SPI, 1x I²C, 5x ADC, 4x 5-pin OLLO DYNAMIXEL ports 3x RS485, 3x TTL Audio Several programmable beep sequences Programmable LEDs 4x User LED Status LEDs 1x Board status LED1x Arduino LED1x Power LED Buttons and Switches 2x Push buttons, 1x Reset button, 2x Dip switch Battery Lithium polymer 11.1 V 1800 mAh / 19.98 Wh 5C PC connection USB Firmware upgrade via USB / via JTAG Power adapter (SMPS) Input: 100-240 VAC 50/60 Hz, 1.5 A @maxOutput: 12 VDC, 5 A Downloads ROS Robot Programming GitHub E-Manual Community

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Die Hochfrequenztechnik ist eines der Gebiete, auf denen man auch heute noch eigene Ideen in die Tat umsetzen kann. Unzählige Schaltungsvarianten mit besonderen Zielsetzungen geben Raum für sinnvolle Experimente und Projekte. Vieles kann man nicht einfach kaufen. Detektorradios ohne eigene Energiequelle, einfache Röhrenempfänger mit einem Hauch von Nostalgie, die ersten Empfangsversuche mit dem Software Defined Radio oder Spezialempfänger für den Amateurfunk, all dies lässt sich mit wenig Aufwand realisieren. Lange Zeit war das Radiobasteln der Einstieg in die Elektronik. Inzwischen gibt es auch andere Wege, vor allem über Computer, Mikrocontroller und die Digitaltechnik. Allerdings kommen die analogen Wurzeln der Elektronik oft zu kurz. Die Radiotechnik eignet sich besonders gut als Lernfeld der Elektronik, weil man hier mit den einfachsten Grundlagen beginnen kann. Aber auch die Verbindung zur modernen Digitaltechnik liegt auf der Hand, wenn es z. B. um moderne Abstimmverfahren wie PLL und DDS oder um moderne DSP-Radios geht. Dieses Buch gibt einen Überblick und stellt eine Sammlung einfacher Projekte vor. Der Autor möchte Sie dabei unterstützen, eigene Ideen zu entwickeln, eigene Empfänger zu entwerfen und sie zu erproben.

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Elektronik & Modellbahn 1 (PDF)

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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 PCBite 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. Included 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

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