An 8-in-1 test & measurement instrument for the electronics workbench
A well-equipped electronics lab is crammed with power supplies, measuring devices, test equipment and signal generators. Wouldn‘t it be better to have one compact device for almost all tasks? Based on the Arduino, a PC interface is to be developed that’s as versatile as possible for measurement and control. It simply hangs on a USB cable and – depending on the software – forms the measuring head of a digital voltmeter or PC oscilloscope, a signal generator, an adjustable voltage source, a frequency counter, an ohmmeter, a capacitance meter, a characteristic curve recorder, and much more.
The circuits and methods collected here are not only relevant for exactly these tasks in the "MSR" electronics lab, but many details can also be used within completely different contexts.
Interface utilisateur à double rétroéclairage : le double bouton rétroéclairé est comme le bouton simple rétroéclairé, mais deux fois plus amusant ! Utilisez ce composant lorsque vous devez faire fonctionner quelque chose de haut en bas, ou de droite à gauche. En utilisant du vinyle découpé, vous pouvez créer des icônes et des autocollants sur du tissu qui montrent la fonctionnalité des boutons de vos utilisateurs.
Caractéristiques
Composante : 4,6' x 6,3'
Taille du bouton individuel : cercle de rayon de 1 '
Durabilité de la presse : jusqu'à 10 000 presses sous 5 lbf
Tension LED : 5 V.
An 8-in-1 test & measurement instrument for the electronics workbench
A well-equipped electronics lab is crammed with power supplies, measuring devices, test equipment and signal generators. Wouldn‘t it be better to have one compact device for almost all tasks? Based on the Arduino, a PC interface is to be developed that’s as versatile as possible for measurement and control. It simply hangs on a USB cable and – depending on the software – forms the measuring head of a digital voltmeter or PC oscilloscope, a signal generator, an adjustable voltage source, a frequency counter, an ohmmeter, a capacitance meter, a characteristic curve recorder, and much more.
The circuits and methods collected here are not only relevant for exactly these tasks in the "MSR" electronics lab, but many details can also be used within completely different contexts.
The Red Pitaya (STEMlab) is a credit card-sized, open-source test and measurement board that can be used to replace most measurement instruments used in electronics laboratories. With a single click, the board can transform into a web-based oscilloscope, spectrum analyser, signal generator, LCR meter, Bode plotter, and microcontroller.
The Red Pitaya (STEMlab) can replace the many pieces of expensive measurement equipment found at professional research organisations and teaching laboratories. The device, that based on Linux, includes an FPGA, digital signal processing (DSP), dual core ARM Cortex processor, signal acquisition and generation circuitry, micro USB socket, microSD card slot, RJ45 socket for Ethernet connection, and USB socket – all powered from an external mains adaptor.
This book is an introduction to electronics. It aims to teach the principles and applications of basic electronics by carrying out real experiments using the Red Pitaya (STEMlab). The book includes many chapters on basic electronics and teaches the theory and use of electronic components including resistors, capacitors, inductors, diodes, transistors, and operational amplifiers in electronic circuits. Many fun and interesting Red Pitaya (STEMlab) experiments are included in the book. The book also makes an introduction to visual programming environment.
The book is written for college level and first year university students studying electrical or electronic engineering.
This book is intended as a highly-practical guide for Hobbyists, Engineers and Scientists wishing to build measurement and control systems to be controlled by a local or remote Personal Computer running the Linux operating system. Both hardware and software aspects of designing typical embedded systems are covered in detail with schematics, code listings and full descriptions. Numerous examples have been designed to show clearly how straightforward it can be to create the interfaces between digital and analog electronics, with programming techniques for creating control software for both local and remote systems. Hardware developers will appreciate the variety of circuits, including a novel, low cost modulated wireless link and will discover how using Matlab® overcomes the need for specialist programming skills.
Software developers will appreciate how a better understanding of circuits plus the freedom offered by Linux to directly control at the register level enables them to optimize related programs. There is no need to buy special equipment or expensive software tools in order to create embedded projects covered in this book. You can build such quality systems quickly using popular low-cost electronic components and free distributed or low-cost software tools. Some knowledge of basic electronics plus the very basics of C programming only is required.
Many projects in this book are developed using Matlab® being a very popular worldwide computational tool for research in engineering and science. The book provides a detailed description of how to combine the power of Matlab® with practical electronics.
With an emphasis on learning by doing, readers are encouraged by examples to program with ease; the book provides clear guidelines as to the appropriate programming techniques “on the fly”. Complete and well-documented source code is provided for all projects.
If you want to learn how to quickly build Linux-based applications able to collect, process and display data on a PC from various analog and digital sensors, how to control circuitry attached to a computer, then even how to pass data via a network or control your embedded system wirelessly and more – then this is the book for you!
Features of this Book
Use the power, flexibility and control offered only by a Linux operating system on a PC.
Use a free, distributed downloadable GNU C compiler Use (optional) a low-cost Student Version of Matlab®.
Use low-cost electronic sub-assemblies for projects.
Improve your skills in electronics, programming, networking and wireless design.
A full chapter is dedicated to controlling your sound card for audio input and output purposes.
Program sound using OSS and ALSA.
Learn how to combine electronic circuits, software, networks and wireless technologies in the complete embedded system.
Learn to interface and program hardware devices in a wide range of useful applications, using ARM7 microcontrollers and the C programming language. Examples covered in full detail include a simple LED to a multi-megabyte SD card running the FAT file system.
Features of this book
Build prototype circuits on breadboard or Veroboard and interface to ARM microcontrollers.
A 32-bit ARM7 microcontroller is used in interfacing and software examples.
Interfacing principles apply to other ARM microcontrollers and other non-ARM microcontrollers as well.
Example programs are written in the C programming language.
Use only free or open source software.
Download and install all programming tools from the Internet.
Template project files are provided for easy project creation.
Hardware
Interface to LEDs, transistors, optocouplers, relays, solenoids, switches, keypads, LCD displays, seven segment displays, DC motors, stepper motors, external analogue signals using the ADC, RS232, RS-485, TWI, USB, SPI and SD memory cards.
Software
Once hardware has been interfaced to a microcontroller, software must be written to control the hardware. You will learn how to write programs to operate externally interfaced hardware devices, use timers and interrupts. Also learn how to port FAT file system code for use with an SD memory card, program the PWM to produce an audio sine wave, program the PWM to speed control a DC motor and more.
A chapter on more advanced ARM microcontrollers is included with an overview of some of the newest ARM microcontrollers and their features.
Il s'agit d'une autre excellente interface série IIC/I²C/TWI/SPI. Comme les ressources en broches du contrôleur sont limitées, votre projet risque de ne pas pouvoir utiliser le blindage LCD normal après avoir été connecté à une certaine quantité de capteurs ou de carte SD. Cependant, avec ce module d'interface I²C, vous pourrez réaliser l'affichage des données via seulement 2 fils. Si vous avez déjà des appareils I²C dans votre projet, ce module LCD ne coûte en réalité aucune ressource supplémentaire. C'est fantastique pour un projet basé.
Adresse I²C : 0X20~0X27 (l'adresse d'origine est 0X20, vous pouvez la modifier vous-même)
Le rétroéclairage et le contraste sont ajustés par potentiomètre
Livré avec 2 interfaces IIC, qui peuvent être connectées par Dupont Line ou un câble dédié IIC Adresse I²C : 0x27 (Adresse I²C : 0X20~0X27 (l'adresse d'origine est 0X27, vous pouvez la modifier vous-même)
Caractéristiques
Compatible pour 1602 LCD
Tension d'alimentation : 5 V
Poids : 5g
Taille: 5,5 x 2,3 x 1,4 cm
Cette carte d'extension vous permet d'ajouter une interface RS485 et CAN à un Raspberry Pi Pico.
La carte offre également la possibilité de la faire fonctionner soit via une connexion USB-C standard de 5 V, soit via une borne à vis acceptant une tension de 6 à 12 V. La tension appliquée à la borne à vis est réduite à 5 V par un convertisseur de tension intégré à la carte.
Caractéristiques
L'alimentation peut être fournie via une connexion USB-C de 5 V ou via une borne à vis qui consomme entre 6 et 12 V. Dans ce dernier cas, un convertisseur de tension intégré réduit la tension à 5 V.
Pour augmenter la polyvalence et la gamme de fonctions, les broches de connexion du Raspberry Pi Pico ont été acheminées vers l'extérieur.
La carte d'extension offre également la possibilité de communiquer via les interfaces RS485 et CAN.
Spécifications
Interface CAN
SPI, CAN
Interface RS485
Série, RS485
Alimentation
5 V CC (USB-C)
Borne à vis
6-12 V CC
Niveau logique
3,3 V
Résistance de terminaison CAN
120 Ω (peut être activé et désactivé selon les besoins)
Résistance de terminaison RS485
120 Ω (peut être activé et désactivé selon les besoins)
La télécommande universelle TV-B-Gone vous permet d'allumer ou d'éteindre pratiquement n'importe quel téléviseur. Vous contrôlez quand vous regardez la télévision, plutôt que ce que vous voyez. La télécommande porte-clés TV-B-Gone est si petite qu'elle se glisse facilement dans votre poche pour que vous l'ayez à portée de main quand vous en avez besoin, où que vous alliez : bars, restaurants, laveries automatiques, stades de baseball, arènes, etc.
Le kit TV-B-Gone est un excellent moyen d'enseigner l'électronique. Lorsqu'il est soudé ensemble, il vous permet d'éteindre presque n'importe quel téléviseur dans un rayon de 150 pieds ou plus. Il fonctionne sur plus de 230 codes d'alimentation au total – 115 codes américains/asiatiques et 115 autres codes européens. Vous pouvez sélectionner la zone souhaitée lors de l’assemblage du kit.
Il s'agit d'un kit non assemblé, ce qui signifie que la soudure et l'assemblage sont nécessaires – mais c'est très simple et constitue une excellente introduction à la soudure en général. Ce kit rend la télécommande TV-B-Gone populaire plus amusante car vous l'avez créée vous-même avec quelques bases de soudure et d'assemblage ! Montrez à vos amis et à votre famille à quel point vous êtes doué en technologie et divertissez-les avec la puissance du TV-B-Gone !
Le kit est alimenté par 2 piles AA et la sortie provient de 2 LED IR à faisceau étroit et de 2 LED IR à faisceau large.
Inclus
Toutes les pièces/composants requis
Requis
Outils, fer à souder et piles
Téléchargements
GitHub
Clever Tricks with ATmega328 Pro Mini Boards
With a simple Pro Mini board and a few other components, projects that 20 or 30 years ago were unthinkable (or would have cost a small fortune) are realized easily and affordably in this book: From simple LED effects to a full battery charging and testing station that will put a rechargeable through its paces, there’s something for everyone.
All the projects are based on the ATmega328 microcontroller, which offers endless measuring, switching, and control options with its 20 input and output lines. For example, with a 7-segment display and a few resistors, you can build a voltmeter or an NTC-based thermometer. The Arduino platform offers the perfect development environment for programming this range of boards.
Besides these very practical projects, the book also provides the necessary knowledge for you to create projects based on your own ideas. How to measure, and what? Which transistor is suitable for switching a certain load? When is it better to use an IC? How do you switch mains voltage? Even LilyPad-based battery-operated projects are discussed in detail, as well as many different motors, from simple DC motors to stepper motors.
Sensors are another exciting topic: For example, a simple infrared receiver that can give disused remote controls a new lease on life controlling your home, and a tiny component that can actually measure the difference in air pressure between floor and table height!
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.
Le connecteur universel à 4 broches est un connecteur blanc bouclé à 4 broches utilisé sur les câbles Stem, Twigs et Grove. L'espacement des broches est de 2 mm. Il y a 10 connecteurs par sachet. Ils peuvent être utilisés dans des projets de bricolage.
