RFID technology has conquered many areas in which barcodes, magnetic strips and contact smartcards were used previously. Everyday applications, such as electronic ticketing, access cards, debit cards and electronic identity documents would not be possible without this technology.
MIFARE is the most widely used RFID technology, and this book provides a practical and comprehensive introduction to it. Among other things, the initial chapters cover physical fundamentals, relevant standards, RFID antenna design, security considerations and cryptography.
The complete design of a reader’s hardware and software is described in detail. The reader’s firmware and the associated PC software support programming using any .NET language. The specially developed PC program, “Smart Card Magic.NET”, is a simple development environment that supports sending commands to a card at the click of a mouse, as well as the ability to create C# scripts. Alternatively, one may follow all of the examples using Visual Studio 2010 Express Edition.
Finally, the major smart card reader API standards are introduced. The focus is on programming contactless smartcards using standard PC/SC readers using C/C++, Java and C#.
Plug a reader into the headers, use a Qwiic cable, scan your 125kHz ID tag, and the unique 32-bit ID will be shown on the screen. The unit comes with a read LED and buzzer, but don't worry, there is a jumper you can cut to disable the buzzer if you want. Utilizing SparkFun's handy Qwiic system, no soldering is required to connect it to the rest of your system. However, we still have broken out 0.1"-spaced pins if you prefer to use a breadboard.
Utilizing the onboard ATtiny84A, the Qwiic RFID takes the six byte ID tag of your 125kHz RFID card, attaches a timestamp to it, and puts it onto a stack that holds up to 20 unique RFID scans at a time. This information is easy to get at with some simple I²C commands.
Using the RFID Starter Kit
An Arduino board has now become ‘the’ basic component in the maker community. No longer is an introduction to the world of microcontrollers the preserve of the expert. When it comes to expanding the capabilities of the basic Arduino board however, the developer is still largely on his own. If you really want to build some innovative projects it’s often necessary to get down to component level. This can present many beginners with major problems. That is exactly where this book begins.
This book explains how a wide variety of practical projects can be built using items supplied in a single kit together with the Arduino board. This kit, called the 'RFID Starter Kit for Arduino' (SKU 17240) is not just limited to RFID applications but contains more than 30 components, devices and modules covering all areas of modern electronics.
In addition to more simple components such as LEDs and resistors there are also complex and sophisticated modules that employ the latest technology such as:
A humidity sensor
A multicolor LED
A large LED matrix with 64 points of light
A 4-character 7-segment LED display
An infra red remote-controller unit
A complete LC-display module
A servo
A stepper motor and controller module
A complete RFID reader module and security tag
On top of that you will get to build precise digital thermometers, hygrometers, exposure meters and various alarm systems. There are also practical devices and applications such as a fully automatic rain sensor, a sound-controlled remote control system, a multifunctional weather station and so much more.
All of the projects described can be built using the components supplied in the Elektor kit.
Designed with cutting-edge technology, this shield brings the power of Ultra High Frequency (UHF) RFID to your fingertips.
With the Ardi UHF Shield, you can effortlessly read up to an impressive 50 tags per second, allowing for fast and efficient data collection. The shield features an onboard UHF antenna, ensuring reliable and accurate tag detection even in challenging environments.
Equipped with a high-performance 0.91" OLED display, the Ardi UHF Shield provides clear and concise visual feedback, making it easy to monitor and interact with the RFID readings. Whether you're tracking inventory, managing access control, or implementing a smart attendance system, this shield has you covered.
With a remarkable 1-meter reading distance, the Ardi UHF Shield offers an extended range for capturing RFID data. Say goodbye to the limitations of proximity-based RFID systems and embrace the flexibility and convenience of a wider reading range.
The shield provides read-write capabilities, allowing you to not only retrieve information from RFID tags but also update or modify data as needed. This versatility opens up a world of possibilities for advanced applications and custom solutions.
Features
Onboard High-performance UHF RFID reader module
24 hours x 365 days’ work normally
0.91” OLED display for visual interaction with shield
Multi-tone Buzzer onboard for Audio alerts
Shield compatible with both 3.3 V and 5 V MCU
Mounts directly onto ArdiPi, Ardi32 or other Arduino compatible boards
Specifications
OLED resolution 128x32 pixels
I²C Interface for OLED
UHF Frequency Range (EU/UK): 865.1-867.9 MHz
UHF Module Type: Read/Write
Protocols Supported: EPCglobal UHF Class 1 Gen 2 / ISO 18000-6C
Reading Distance: 1 meters
Can identify over 50 tags simultaneously
Communication interface: TTL UART Interface for UHF
Communication baud rate: 115200 bps (default and recommend) – 38400 bps
Operation current: 180 mA @ 3.5 V (26 dBm Output, 25°C), 110 mA @ 3.5 V (18 dBm Output, 25°C)
Working humidity <95% (+25°C)
Heat-dissipating method Air cooling(no need out install cooling fin)
Tags storage capacity: 200 pcs tags @ 96 bit EPC
Output power: 18-26 dBm
Output power accuracy: +/-1 dB
Tags RSSI support
EAGLE – the “Easily Applicable Graphical Layout Editor“ is a professional-grade CAD (computer aided design) software package for the design and drafting of electronic schematics as well as the design and fabrication of printed circuit boards (PCBs).
This Advanced User Guide provides the experienced EAGLE user with insight into using some of the more advanced features of EAGLE software. It is not a guide to teach the reader the basic concepts of EAGLE, nor does it discuss the ‘how to’ of the EAGLE interface and the simpler operations and commands of the software. That is the purpose of the author’s previous title EAGLE V6 Getting Started Guide also published by Elektor.
This eBook is intended as an enduring document covering the more advanced modules, commands, and functions which make up EAGLE. It is hoped that this eBook will provide a quick, succinct reference to assist with more complex applications and uses of EAGLE – an ‘EAGLE User’s Companion’, if you like.
Complementing the EAGLE Advanced User Guide, the EAGLE User Language manual is included in this eBook in unabridged form, reproduced with permission of CadSoft GmbH.
At the time of writing, the material in this eBook covers version 7 of the EAGLE software suite.
With this kit you can built all the projects described in the book 'Mastering the Arduino Uno R4'. The kit comes with several LEDs, sensors, actuators, and other components. The purpose of the kit is to make a flying start with hardware and software aspects of projects designed around the Arduino Uno microcontroller system.
Included
1x RFID reader module
1x DS1302 clock module
1x 5 V stepper motor
1x '2003' stepper motor drive board
5x Green LED
5x Yellow LED
5x Red LED
2x Rocker switch
1x Flame sensor
1x LM35 sensor module
1x Infrared receiver
3x Light-dependent resistors (LDRs)
1x IR remote controller
1x Breadboard
4x Pushbutton (with four caps)
1x Buzzer
1x Piezo sounder
1x Adjustable resistor (potentiometer)
1x 74HC595 shift register
1x 7-segment display
1x 4-digit 7-segment display
1x 8x8 Dot-matrix display
1x 1602 / I²C LCD module
1x DHT11 Temperature and humidity module
1x Relay module
1x Sound module
Set of Dupont cables
Set of Breadboard cables
1x Water sensor
1x PS2 Joystick
5x 1 k-ohm resistor
5x 10 k-ohm resistor
5x 220-ohm resistor
1x 4x4 keypad module
1x 9g Servo (25 cm)
1x RFID card
1x RGB module
1x 9 V battery DC jack
Not included
Mastering the Arduino Uno R4 (Book)
Arduino Uno R3/R4 (Board)
Elektor GREEN and GOLD members can download their digital edition here.
Not a member yet? Click here.
Knowledge for All!
Super Servo TesterTest Up to Four Servos Stand-Alone or In-System
Analog Signals and MicrocontrollersADCs, DACs, Current Measurement, and More
embedded world 2023
Sub-Nyquist Sampling in PracticeReliably Capturing Higher Frequencies Using Subsampling
Android Smartphone Here, ESP32 There?Practical Pproject Using the Android Wi-Fi API
Active 1-kHz Filter for Distortion MeasurementBetter Measurements Through Optimization of the Measurement Signal
Starting Out in Electronics......Multivibrating Cheerfully Further!
Err-lectronicsCorrections, Updates and Readers’ Letters
The New I3C ProtocolA Worthy Successor to I²C, or Just More Hot Air?
BlueRC: IR Remote Control with Smartphone and ESP32Adaptive and Universal
Microcontroller Documentation Explained (Part 2)Registers and Block Diagrams
Automating Test and MeasurementProgramming Test Equipment to Do What You Want
Infographics: Test and Measurement
Overvoltage Protection for Safe OperationTransient Protection for Non-Isolated DC/DC Power Modules
Wiha Measuring EquipmentReliable Electrical Testers and Meters
Automating Testing and Collaborating on Test Results
From Life’s ExperienceHigh-Level Electronics
Energy LoggerMeasuring and Recording Power Consumption
Assembling the 4tronix M.A.R.S. Rover Kit
Parking Disk with E-Paper DisplayAn Innovative Digital Replacement
eCO₂ Telegram botAir-Quality Measurement with Telegram Notification
Behind the Scenes of DIY High-End AudioElektor’s Ton Giesberts Interviewed on the Fine Art of Analog Design
HomeLab ToursWork in Progress...
RFID Tag Reading and RFID Door LockSample Projects from the Elektor Arduino Experimenting Bundle
Oscilloscope Current Probe for RFRF Current Measurements Made Easy
Not for the Faint-Hearted: Robot Arm KitWith Raspberry Pi Pico and MicroPython
Generative AIWho Made This Anyway?
Hexadoku
The Internet of Things is rapidly gaining interest, and that has fueled the development of the Edison. A tiny computer, the size of a postage stamp, with a lot of power and built-in wireless communication capabilities.
In this eBook we will help you get up-to-speed with the Edison, by installing the software both on the Edison as well as on your Windows PC. We will use the Edison Arduino break-out board because it is easy to work with. We will discuss Linux, Arduino C++ and Python, and show examples of how the Edison can interface with other hardware. We will use Wi-Fi and Bluetooth to set up wireless connections, and show you a trick to program sketches over Wi-Fi.
Once you have completed this book your Edison will be up and running with the latest software version, and you will have sufficient knowledge of both hardware and software to start making your own applications. You will even be able to program the Edison over USB and wireless both in Arduino C++ and Python.
This is not a projects eBook, but a toolbox that will allow you to explore the wonderful world of the Intel Edison!
Programming and Projects for the Minima and WiFi
Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface.
Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate.
The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including
LEDs
7-segment displays (using timer interrupts)
LCDs
Sensors
RFID Reader
4x4 Keypad
Real-time clock (RTC)
Joystick
8×8 LED matrix
Motors
DAC (Digital-to-analog converter)
LED matrix
WiFi connectivity
Serial UART
CAN bus
Infrared controller and receiver
Simulators
… all in creative and educational ways with the project operation and associated software explained in great detail.
Programming and Projects for the Minima and WiFi
Based on the low-cost 8-bit ATmega328P processor, the Arduino Uno R3 board is likely to score as the most popular Arduino family member, and this workhorse has been with us for many years. Eleven years later, the long-overdue successor, the Arduino Uno R4, was released. It is built around a 48 MHz, 32-bit Arm Cortex-M4 microcontroller and provides significantly expanded SRAM and Flash memory. Additionally, a higher-precision ADC and a new DAC are added to the design. The Uno R4 board also supports the CAN Bus with an interface.
Two versions of the board are available: Uno R4 Minima, and Uno R4 WiFi. This book is about using these new boards to develop many different and interesting projects with just a handful of parts and external modules. All projects described in the book have been fully tested on the Uno R4 Minima or the Uno R4 WiFi board, as appropriate.
The project topics include the reading, control, and driving of many components and modules in the kit as well as on the relevant Uno R4 board, including
LEDs
7-segment displays (using timer interrupts)
LCDs
Sensors
RFID Reader
4x4 Keypad
Real-time clock (RTC)
Joystick
8×8 LED matrix
Motors
DAC (Digital-to-analog converter)
LED matrix
WiFi connectivity
Serial UART
CAN bus
Infrared controller and receiver
Simulators
… all in creative and educational ways with the project operation and associated software explained in great detail.
The Joy-Pi Advanced is a compact and powerful device that allows you to realize your projects quickly and easily. Whether you already have a lot of experience, or next to none, the Joy-Pi Advanced lets you unleash your creativity. Thanks to its compatibility with a wide range of platforms, including Raspberry Pi, Raspberry Pi Pico, Arduino Nano, BBC micro:bit, and NodeMCU ESP32, you can easily and quickly access your preferred platform.
In addition, the Joy-Pi Advanced features more than 30 stations, lessons, and modules, giving you an unlimited variety of ways to get your projects done. With the self-developed learning center, you can not only improve your skills but also create new projects. The learning center offers a wealth of information and tutorials that will guide you step by step through your projects.
Joy-Pi Advanced is characterized in particular by its intelligent switch units, which allow an extended use of the available pins. A total of three switch units are integrated, each equipped with 12 individual switches that provide precise control of the connected sensors and modules. This system solves the well-known problem of limited pin count that occurs with conventional microcontrollers. The switch units allow you to operate a large number of sensors and modules in parallel by switching them on and off individually. This simulates multiple pin assignment, allowing you to exploit the full power of your projects without compromising functionality.
By combining innovative adapter boards and the micro:bit slot, you can achieve seamless compatibility with a wide range of microcontrollers such as Raspberry Pi Pico, NodeMCU ESP32, micro:mit and Arduino Nano. The specially developed adapter boards are designed to perfectly match the respective microcontroller. By plugging the microcontroller onto the appropriate adapter board and then plugging it into the micro:bit slot, the Joy-Pi Advanced quickly and easily becomes compatible with the different microcontrollers. This allows seamless integration of your preferred platform and the ability to combine the strengths of the different microcontrollers in your projects. This way, you can fully focus on your creative projects without worrying about the compatibility of different microcontrollers. The Joy-Pi Advanced simplifies the development process and gives you the possibility to design your projects flexibly and individually.
Features
Highly integrated development platform & learning center
Fast, easy & wireless combination of various sensors & actuators
Installation option for Raspberry Pi 4
Compatible with various microcontrollers
Self-developed, didactic learning platform for Raspberry Pi & Windows
Specifications
Compatible to
Raspberry Pi 4, Arduino Nano, NodeMCU ESP32, BBC micro:bit, Raspberry Pi Pico
Installed sensors, actuators & components
39
Learning platform
Over 40 entries in the know-ledge database, 10 projects, 10 learning tasks, 14 visions
Displays
7-segment display, 16x2 display, 1.8“ TFT display, 0.96" OLED display, 8x8 RGB matrix
Sensors
DS18B20, shock sensor, hall sensor, barometer, sound sensor, gyroscope, PIR sensor, Light barrier, NTC, Light sensor, 6x touch sensor, color sensor, ultrasonic distance sensor, DHT11 temperature & humidity sensor
Control
Joystick, 5x switches, potentiometer, rotary encoder, 4x4 button matrix, relays, PWM fan
Motors
Servo interface, Stepper motor interface, Vibration motor
Measuring & conversion modules
Analog-Digital Converter, Level converter, voltmeter, Variable voltage supply
Other components
RTC real time clock, buzzer, EEPROM memory, infrared receiver, breadboard, RFID reader
Adapter boards
Adapter for NodeMCU ESP32, Arduino Nano & Raspberry Pi Pico, Board connectors for Raspberry Pi & External Boards
Electronic components
Infrared remote control, RFID chip, RFID card, 6x alligator clips, microSD card reader, servo motor, stepper motor, 32 GB microSD card
Components
40x resistors, 3x green LEDs, 3x yellow LEDs, 3x red LEDs, 1x transistor, 5x buttons, 1x potentiometer, 2x capacitors
Other accessories
Screw assortment, screwdriver, accessory storage bag, power supply & power cable, servo mount
Power supply
Built-in power supply: 36 W, 12 V, 3 A Case connector: Small device plug C8
Voltage outputs
12 V, 5 V, 3.3 V, Variable voltage output (2-11 V)
Data buses & signal outputs
I²C, SPI, Analog to digital converter
Battery (RTC)
CR2032
Dimensions
327 x 200 x 52 mm
Required
Raspberry Pi 4 with at least 2 GB RAM
Downloads
Joy-Pi website
Datasheet
Manual
Projects with Thonny-IDE, uPyCraft-IDE, and ESP32
The 'Python' programming language has enjoyed an enormous upswing in recent years. Not least, various single-board systems such as the Raspberry Pi have contributed to its popularity. But Python has also found widespread use in other fields, such as artificial intelligence (AI) or machine learning (ML). It is obvious, therefore, to use Python or the 'MicroPython' variant for use in SoCs (Systems on Chip) as well.
Powerful controllers such as the ESP32 from Espressif Systems offer excellent performance as well as Wi-Fi and Bluetooth functionality at an affordable price. With these features, the Maker scene has been taken by storm. Compared to other controllers, the ESP32 has a significantly larger flash and SRAM memory, as well as a much higher CPU speed. Due to these characteristics, the chip is not only suitable for classic C applications, but also for programming with MicroPython.
This book introduces the application of modern one-chip systems. In addition to the technical background, the focus is on MicroPython itself. After the introduction to the language, the programming skills learned are immediately put into practice. The individual projects are suitable for use in the laboratory as well as for everyday applications. So, in addition to the actual learning effect, the focus is also on the joy of building complete and useful devices. By using laboratory breadboards, circuits of all kinds can be realized with little effort, turning the testing and debugging of the 100% homebrew projects into an instructive pleasure.
The various applications, such as weather stations, digital voltmeters, ultrasound range finders, RFID card readers or function generators, make the projects presented ideally suited for practical courses or subject and study work in the natural sciences, or in science and technology classes.