This book is intended for electronics enthusiasts and professionals alike, who want a much deeper understanding of the incredible technology conquests over the pre-digital decades that created video. It details evolution of analogue video electronics and technology from the first electro-mechanical television, through advancements in Cathode Ray Tubes, transistor circuits and signal processing, up to the latest analogue, colour-rich TV, entertainment devices and calibration equipment.
Key technological advances that enabled monochrome video and, eventually, colour are explained. The importance, compromises and techniques of maintaining crucial backward legacy compatibilities are described. The generation, signal processing and playback of analogue video signals in numerous capture, display, recording and playback devices together with operating principles and practices are examined. Technical and, often, political merits and deficiencies of key national and international video standards are highlighted. Several formats are shown to win and ultimately to co-exist.
This book begins at fairly basic levels; concepts are introduced with human physiological perceptions of light and colour explained. This leads to the subject matter of luminance and chrominance; their equations and the circuits to process. There is full, detailed analysis of waveform shapes and timings inside video equipment and relevant popular connections e.g. S-video. Several analogue video projects which you can build yourself are also included in this book; with schematics, circuit board layouts and calibration steps to help you obtain the best results. The book makes use of many colour pages where the subject matter demands it (e.g. test cards).
If you really want a deeper understanding of analogue video then this book is for you!
39 Experiments with Raspberry Pi and Arduino
This book is about Raspberry Pi 3 and Arduino camera projects.
The book explains in simple terms and with tested and working example projects, how to configure and use a Raspberry Pi camera and USB based webcam in camera-based projects using a Raspberry Pi.
Example projects are given to capture images, create timelapse photography, record video, use the camera and Raspberry Pi in security and surveillance applications, post images to Twitter, record wildlife, stream live video to YouTube, use a night camera, send pictures to smartphones, face and eye detection, colour and shape recognition, number plate recognition, barcode recognition and many more.
Installation and use of popular image processing libraries and software including OpenCV, SimpleCV, and OpenALPR are explained in detail using a Raspberry Pi. The book also explains in detail how to use a camera on an Arduino development board to capture images and then save them on a microSD card.
All projects given in this book have been fully tested and are working. Program listings for all Raspberry Pi and Arduino projects used in this book are available for download on the Elektor website.
Meer dan 40 volledig geteste ESP32-projecten met Arduino IDE en de LVGL grafische bibliotheek
Deze bundel bevat de ESP32 Cheap Yellow Display (CYD) – een compact ontwikkelbord dat een standaard ESP32-microcontroller combineert met een TFT-kleurendisplay van 320 x 240 pixels. Het bord beschikt ook over meerdere aansluitingen voor GPIO, seriële communicatie (TX/RX), voeding en aarde. Het ingebouwde display is een groot voordeel, omdat gebruikers hiermee complexe, grafische projecten kunnen maken zonder dat er externe LCD's of displays nodig zijn.
Het bijbehorende boek introduceert de hardware en de ingebouwde aansluitingen van het CYD-bord in detail. Het biedt een reeks projecten van beginners- tot gevorderdenniveau, ontwikkeld met de populaire Arduino IDE 2.0. Zowel basis grafische functies als de krachtige LVGL grafische bibliotheek worden behandeld, met praktische projecten die elke aanpak illustreren.
Alle meegeleverde projecten zijn volledig getest en klaar voor gebruik. Het boek bevat blokdiagrammen, circuitschema's, complete codelijsten en stapsgewijze uitleg. Met de LVGL-bibliotheek kunnen lezers moderne, kleurrijke grafische interfaces maken met behulp van widgets zoals knoppen, labels, schuifregelaars, kalenders, toetsenborden, grafieken, tabellen, menu's, animaties en meer.
ESP32 Cheap Yellow Display Board
Dit ontwikkelbord (ook bekend als "Cheap Yellow Display") wordt aangedreven door de ESP-WROOM-32, een dual-core MCU met geïntegreerde Wi-Fi- en Bluetooth-mogelijkheden. Het werkt op een hoofdfrequentie tot 240 MHz, met 520 KB SRAM, 448 KBROM en 4 MB Flash-geheugen. Het bord is voorzien van een 2,8-inch scherm met een resolutie van 240 x 320 en resistieve aanraking.
Bovendien bevat het bord een achtergrondverlichtingsbesturingscircuit, aanraakbesturingscircuit, luidsprekeraandrijfcircuit, lichtgevoelig circuit en RGB-LED-besturingscircuit. Het biedt ook een TF-kaartsleuf, seriële interface, DHT11 temperatuur- en vochtigheidssensorinterface en extra IO-poorten.
De module ondersteunt ontwikkeling in Arduino IDE, ESP-IDE, MicroPython en Mixly.
Toepassingen
Beeldoverdracht voor Smart Home-apparaat
Draadloze bewaking
Slimme landbouw
Draadloze QR-herkenning
Signaal van draadloos positioneringssysteem
En andere IoT-toepassingen
Specificaties
Microcontroller
ESP-WROOM-32 (Dual-core MCU met geïntegreerde Wi-Fi en Bluetooth)
Frequentie
Tot 240 MHz (rekenkracht is maximaal 600 DMIPS)
SRAM
520 KB
ROM
448 KB
Flash
4 MB
Bedrijfsspanning
5 V
Stroomverbruik
ca. 115 mA
Display
2,8" TFT-kleurenscherm (240 x 320)
Touch
Resistief Touch
Driver chip
ILI9341
Afmetingen
50 x 86 mm
Gewicht
50 g
Downloads
GitHub
Inhoud van de bundel
The ESP32 Cheap Yellow Display Book (normale prijs: € 35)
ESP32 Cheap Yellow Display Board (normale prijs: € 25)
1x ESP32 Dev Board met 2,8" display en acryl-behuizing
1x Touchpen
1x Aansluitkabel
1x USB-kabel
Projects Using Arduino IDE and the LVGL Graphics Library
The ESP32 is probably one of the most popular microcontrollers used by many people, including students, hobbyists, and professional engineers. Its low cost, coupled with rich features makes it a popular device to use in many projects. Recently, a board called the ESP32 Cheap Yellow Display (CYD for short) is available from its manufacturers. The board includes a standard ESP32 microcontroller together with a 320x240 pixel TFT display. Additionally, the board provides several connectors for interfaces such as GPIO, serial port (TX/RX), power and Ground. The inclusion of a TFT display is a real advantage as it enables users to design complex graphics-based projects without resorting to an external LCD or graphics displays.
The book describes the basic hardware of the ESP32 CYD board and provides details of its on-board connectors. Many basic, simple, and intermediate-level projects are given in the book based on the ESP32 CYD, using the highly popular Arduino IDE 2.0 integrated development environment. The use of both the basic graphics functions and the use of the popular LVGL graphics library are discussed in the book and projects are given that use both types of approaches.
All the projects given in the book have been tested and are working. The block diagram, circuit diagram, and the complete program listings and program descriptions of all the projects are given with explanations. Readers can use the LVGL graphics library to design highly popular eye-catching full-color graphics projects using widgets such as buttons, labels, calendars, keypads, keyboards, message boxes, spinboxes, sliders, charts, tables, menus, bars, switches, drop-down lists, animations, and many more widgets.
Projects Using Arduino IDE and the LVGL Graphics Library
The ESP32 is probably one of the most popular microcontrollers used by many people, including students, hobbyists, and professional engineers. Its low cost, coupled with rich features makes it a popular device to use in many projects. Recently, a board called the ESP32 Cheap Yellow Display (CYD for short) is available from its manufacturers. The board includes a standard ESP32 microcontroller together with a 320x240 pixel TFT display. Additionally, the board provides several connectors for interfaces such as GPIO, serial port (TX/RX), power and Ground. The inclusion of a TFT display is a real advantage as it enables users to design complex graphics-based projects without resorting to an external LCD or graphics displays.
The book describes the basic hardware of the ESP32 CYD board and provides details of its on-board connectors. Many basic, simple, and intermediate-level projects are given in the book based on the ESP32 CYD, using the highly popular Arduino IDE 2.0 integrated development environment. The use of both the basic graphics functions and the use of the popular LVGL graphics library are discussed in the book and projects are given that use both types of approaches.
All the projects given in the book have been tested and are working. The block diagram, circuit diagram, and the complete program listings and program descriptions of all the projects are given with explanations. Readers can use the LVGL graphics library to design highly popular eye-catching full-color graphics projects using widgets such as buttons, labels, calendars, keypads, keyboards, message boxes, spinboxes, sliders, charts, tables, menus, bars, switches, drop-down lists, animations, and many more widgets.
Learn to program displays and GUIs with Python
This book is about Raspberry Pi 4 display projects. The book starts by explaining how to install the latest Raspbian operating system on an SD card, and how to configure and use the GPIO ports.
The core of the book explains the following topics in simple terms with fully tested and working example projects:
Simple LED projects
Bar graph LED projects
Matrix LED projects
Bitmap LED projects
LED strips
LCDs
OLED displays
E-paper displays
TFT displays
7-inch touch screen
GUI Programming with Tkinder
One unique feature of this book is that it covers almost all types of display that readers will need to use in their Raspberry Pi based projects. The operation of each project is fully given, including block diagrams, circuit diagrams, and commented full program listings. It is therefore an easy task to convert the given projects to run on other popular platforms, such as Arduino or PIC microcontrollers.
Python program listings of all Raspberry Pi projects developed in this book are available for download at Elektor.com. Readers can use these programs in their projects. Alternatively, they can modify the programs to suit their applications.
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.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
Raspberry Pi 5 provides two four-lane MIPI connectors, each of which can support either a camera or a display. These connectors use the same 22-way, 0.5 mm-pitch “mini” FPC format as the Compute Module Development Kit, and require adapter cables to connect to the 15-way, 1 mm-pitch “standard” format connectors on current Raspbery Pi camera and display products.These mini-to-standard adapter cables for cameras and displays (note that a camera cable should not be used with a display, and vice versa) are available in 200 mm, 300 mm and 500 mm lengths.
,
van Harry Baggen
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