Waveshare DVK600 is an FPGA CPLD mother board that features expansion connectors for connecting FPGA CPLD core board and accessory boards. DVK600 provides an easy way to set up FPGA CPLD development system.
Features
FPGA CPLD core board connector: for easily connecting core boards which integrate an FPGA CPLD chip onboard
8I/Os_1 interface, for connecting accessory boards/modules
8I/Os_2 interface, for connecting accessory boards/modules
16I/Os_1 interface, for connecting accessory boards/modules
16I/Os_2 interface, for connecting accessory boards/modules
32I/Os_1 interface, for connecting accessory boards/modules
32I/Os_2 interface, for connecting accessory boards/modules
32I/Os_3 interface, for connecting accessory boards/modules
SDRAM interface
for connecting SDRAM accessory board
also works as FPGA CPLD pins expansion connectors
LCD interface, for connecting LCD22, LCD12864, LCD1602
ONE-WIRE interface: easily connects to ONE-WIRE devices (TO-92 package), such as temperature sensor (DS18B20), electronic registration number (DS2401), etc.
5 V DC jack
Joystick: five positions
Buzzer
Potentiometer: for LCD22 backlight adjustment, or LCD12864, LCD1602 contrast adjustment
Power switch
Buzzer jumper
ONE-WIRE jumper
Joystick jumper
Downloads
Schematics
High-quality ABS construction
Removable side panels and lid for easy access to GPIO, camera and display connectors
Light pipes for power and activity LEDs
Extraordinarily handsome
Colour: white/red
High-quality ABS construction
Removable side panels and lid for easy access to GPIO, camera and display connectors
Light pipes for power and activity LEDs
Extraordinarily handsome
Colour: black/grey
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.
Functionality, structure and handling of a power module
For readers with first steps in power management the “Abc of Power Modules” contains the basic principles necessary for the selection and use of a power module. The book describes the technical relationships and parameters related to power modules and the basis for calculation and measurement techniques.
Contents
Basics
This chapter describes the need of a DC/DC voltage converter and its basic functionality. Furthermore, various possibilities for realizing a voltage regulator are presented and the essential advantages of a power module are mentioned.
Circuit topologies
Circuit concepts, buck and boost topologies very frequently used with power modules are explained in detail and further circuit topologies are introduced.
Technology, construction and regulation technology
The mechanical construction of a power module is presented, which has a significant influence on EMC and thermal performance. Furthermore, control methods are explained and circuit design tips are provided in this chapter.
Measuring methods
Meaningful measurement results are absolutely necessary to assess a power module. The relevant measurement points and measurement methods are described in this chapter.
Handling
The aspects of storage and handling of power modules are explained, as well as their manufacturing and soldering processes.
Selection of a power modules
Important parameters and criteria for the optimal selection of a power module are presented in this section.
This Wi-Fi module is based on the popular ESP8266 chip. The module is FCC and CE certified and RoHS compliant.
Fully compatible with ESP-12E. 13 GPIO pins, 1 analog input, 4 MB flash memory.
This Crowtail series 4G module is a high-performance LTE Cat1 wireless module. It uses the SIM A7670E communication module from Simcom and communicates through a UART interface, which enables 4G data transmission and voice communication. The module supports multiple LTE bands, including B1/B3/B5/B7/B8/B20, as well as WCDMA and GSM networks. In addition, it supports various protocols such as TCP/IP, FTP, HTTP, and multiple satellite navigation systems such as GPS, GLONASS, and BDS.
The module comes with a charging interface and can be powered by a 3.7 V lithium battery or a 5 V USB-C interface. It also has a 3.5 mm headphone jack, and by connecting a headphone with a microphone, it can be used for making and receiving phone calls. Its compact size makes it easy to integrate into various IoT devices and meet various application requirements. Furthermore, its low power consumption and reliable performance are also the reasons why it is widely used in IoT, smart home, automotive, and industrial control fields.
Features
Integrate the A7670E communication module, enabling 4G data transmission and voice communication with low power consumption and high reliability
Supports multiple LTE bands, including B1/B3/B5/B7/B8/B20, as well as WCDMA and GSM networks
Supports various protocols such as TCP/IP, FTP, HTTP, and multiple satellite navigation systems such as GPS, GLONASS, and BDS
Comes with a charging interface and a headphone jack, which can be used for making and receiving phone calls by connecting a headphone with a microphone
Small but powerful, compact size makes it easy to integrate into various IoT devices.
Specifications
Main Chip: SIM A7670E
LTE-FDD: B1/B3/B5/B7/B8/B20
GSM: 900/1800 MHz
GSM/GPRS power class
EGSM900: 4 (33 dBm ±2 dB)
DCS1800: 1 (30 dBm ±2 dB)
EDGE power class:
EGSM900: E2 (27 dBm ±3 dB)
DCS1800 : E1 (26 dBm +3 dB/-4 dB)
LTE power class: 3 (23 dBm ±7 dB)
Supply Voltage: 4 V ~ 4.2 V
Power: 3.8 V
LTE(Mbps): 10 (DL)/5 (UL)
GPRS/EDGE(Kbps): 236.8 (DL)/236.8 (UL)
Protocol: TCP/IP/IPV4/IPV6/Multi-PDP/FTP/FTPS /HTTP/HTTPS/DNS
Communication interface: USB / UART
Firmware Upgrade: USB/FOTA
Support phonebook types: SM/FD/ON/AP/SDN
Interfaces: 1x Power button, 1x BAT, 1x UART, 1x USB-C, 1x SIM Card slot
Dimensions: 35 x 50 mm
Included
1x Crowtail-4G SIM-A7670E
1x 4G GSM NB-IoT Antenna
1x GPS ceramic antenna
Downloads
Wiki
A7670 AT Command Manual
A7670 Datasheet
Source Code
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.
An Ultra-Rapid Programming Course
This book serves as the very first step to for novices to learn Python programming. The book is divided into ten chapters. In the first chapter, readers are introduced to the basics of Python. It has the detailed instructions for installation on various platforms such as macOS, Windows, FreeBSD, and Linux. It also covers the other aspects of Python programming such as IDEs and Package Manager. The second chapter is where the readers get an opportunity to have a detailed hands-on with Python programming. It covers a group of built-in data structures popularly known as Python Collections. The third chapter covers the important concepts of strings, functions, and recursion.
The fourth chapter focuses on the Object-Oriented Programming with Python. The fifth chapter discusses most commonly used custom data structures such as stack and queue. The sixth chapter spurs the creativity of the readers with Python’s Turtle graphics library. The seventh chapter explores animations and game development using the Pygame library. The eighth chapter covers handling data stored in a variety of file formats. The ninth chapter covers the area of Image processing with Wand library in Python. The tenth and the final chapter presents an array of assorted handy topics in Python.
The entire book follows a step-by-step approach. The explanation of the topic is always followed by a detailed code example. The code examples are also explained in suitable detail and they are followed by the output in the form of text or screenshot wherever possible. Readers will become comfortable with Python programming language by closely following the concepts and the code examples in this book. The book also has references to external resources for readers to explore further.
A download of the software code, and links to tutorial videos can be found on the Elektor website.
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by Harry Baggen
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