This USB Stick contains more than 300 Arduino-related articles published in Elektor Magazine. The content includes both background articles and projects on the following topics:
Software & hardware development: Tutorials on Arduino software development using Arduino IDE, Atmel Studio, Shields, and essential programming concepts.
Learning: The Microcontroller Bootcamp offers a structured approach to programming embedded systems.
Data acquisition & measurement: Projects such as a 16-bit data logger, lathe tachometer, and an AC grid analyzer for capturing and analyzing real-time signals.
Wireless communication: Learn how to implement wireless networks, create an Android interface, and communicate effectively with microcontrollers.
Robotics and automation: This covers the Arduino Nano Robot Controller, supporting boards for automation, and explores various Arduino shields to enhance functionality.
Self-build projects: Unique projects such as laser projection, Numitron clock and thermometer, ELF receiver, Theremino, and touch LED interfaces highlight creative applications.
Whether you're a beginner or an experienced maker, this collection is a valuable resource for learning, experimenting, and pushing the boundaries of Arduino technology.
The Arduino Pro Portenta Vision Shield brings industry-rated features to your Portenta. This hardware add-on will let you run embedded computer vision applications, connect wirelessly or via Ethernet to the Arduino Cloud or your own infrastructure, and activate your system upon the detection of sound events.
Features
324x324 pixels camera sensor: use one of the cores in Portenta to run image recognition algorithms using the OpenMV for Arduino editor
100 Mbps Ethernet connector: get your Portenta H7 connected to the wired Internet
2 onboard microphones for directional sound detection: capture and analyse sound in real-time
JTAG connector: perform low-level debugging of your Portenta board or special firmware updates using an external programmer
SD-Card connector: store your captured data in the card, or read configuration files
The Vision Shield has been designed to fit on top of the Arduino Portenta family. The Portenta boards feature multicore 32-bit ARM Cortex processors running at hundreds of megahertz, with megabytes of program memory and RAM. Portenta boards come with WiFi and Bluetooth.
Embedded Computer Vision Made Easy
Arduino has teamed up with OpenMV to offer you a free license to the OpenMV IDE, an easy way into computer vision using MicroPython as a programming paradigm. Download the OpenMV for Arduino Editor from our professional tutorials site and browse through the examples we have prepared for you inside the OpenMV IDE. Companies across the whole world are already building their commercial products based on this simple-yet-powerful approach to detect, filter, and classify images, QR codes, and others.
Debugging With Professional Tools
Connect your Portenta H7 to a professional debugger through the JTAG connector. Use professional software tools like the ones from Lauterbach or Segger on top of your board to debug your code step by step. The Vision Shield exposes the required pins for you to plug in your external JTAG.
Camera
Himax HM-01B0 camera module
Resolution
320 x 320 active pixel resolution with support for QVGA
Image sensor
High sensitivity 3.6μ BrightSense pixel technology
Microphone
2 x MP34DT05
Length
66 mm
Width
25 mm
Weight
11 gr
For more information, check out the tutorials provided by Arduino here.
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
The Arduino Pro Portenta Cat. M1/NB IoT GNSS Shield allows you to enhance the connectivity features of your Portenta H7 applications. The shield leverages a Cinterion TX62 wireless module by Thales, designed for highly efficient, low-power IoT applications to deliver optimized bandwidth and performance.
The Portenta Cat. M1/NB IoT GNSS Shield combines with the strong edge computing power of the Portenta H7 to enable the development of asset tracking and remote monitoring applications in industrial settings, as well as in agriculture, public utilities and smart cities. The shield offers cellular connectivity to both Cat. M1 and NB-IoT networks with the option to use eSIM technology. Easily track your valuables – across the city or worldwide – with your choice of GPS, GLONASS, Galileo or BeiDou.
Features
Change connectivity capabilities without changing the board
Add NB-IoT, CAT. M1 and positioning to any Portenta product
Possibility to create a small multiprotocol router (WiFi - BT + NB-IoT/CAT. M1)
Greatly reduce communication bandwidth requirements in IoT applications
Low-power module
Compatible also with MKR boards
Remote Monitoring
Industrial and agricultural companies can leverage the Portenta Cat. M1/NB IoT GNSS Shield to remotely monitor gas detectors, optical sensors, machinery alarm systems, biological bug traps and more.
Technology providers providing smart city solutions can compound the power and reliability of the Portenta H7 with the Portenta Cat. M1/NB IoT GNSS Shield, to connect data and automate actions for a truly optimized use of resources and enhanced user experience.
Asset Monitoring
Add monitoring capabilities to any asset by combining the performance and edge computing features of the Portenta family boards. The Portenta Cat. M1/NB IoT GNSS Shield is ideal to monitor valuable goods and also for monitoring industrial machinery and equipment.
Specifications
Connectivity
Cinterion TX62 wireless module; NB-IoT - LTE CAT.M1; 3GPP Rel.14 Compliant Protocol LTE Cat. M1/NB1/NB2; UMTS BANDS: 1 / 2 / 3 / 4 / 5 / 8 / 12(17) / 13 / 18 / 19 / 20 / 25 / 26 / 27 / 28 / 66 / 71 / 85; LTE Cat.M1 DL: max. 300 kbps, UL: max. 1.1 Mbps; LTE Cat.NB1 DL: max. 27 kbps, UL: max. 63 kbps; LTE Cat.NB2 DL: max. 124 kbps, UL: max. 158 kbps
Short messaging service (SMS)
Point-to-point mobile terminated (MT) and mobile originated (MO) Text Mode; Protocol Data Unit (PDU) Mode
Localization support
GNSS capability (GPS/BeiDou/Galileo/GLONASS)
Other
Embedded IPv4 and IPv6 TCP/IP stack access; Internet Services: TCP server/client, UDP client, DNS, Ping, HTTP client, FTP client, MQTT client Secure Connection with TLS/DTLS Secure boot
Dimensions
66 x 25.4 mm
Operating temperature
-40° C to +85° C (-104° F to 185°F)
Downloads
Datasheet
Schematics
Now you can connect your Arduino boards with the official Arduino USB cable. Through a USB-C to USB-C with a USB-A adapter connection, this data USB cable can easily connect your Arduino boards with your chosen programming device. The Arduino USB cable has a nylon braided jacket in the typical Arduino colors white and teal. The connectors have an aluminum shell that protects your cable from harm at the same time as looking cool. Length: 100 cm Aluminium shell with logo Nylon braided jacket white and teal
Make your project dreams come true: an odometer for the hamster wheel, a fully automatic control of your ant farm with web interface, or the Sandwich-O-Mat – a machine that toasts and grills sandwiches of your choice.
With the Arduino and the DIY or Maker movement, not only did entry into microcontroller programming become child's play, but a second development also took place: Resourceful developers brought small boards – so-called shields or modules – to the market, which greatly simplified the use of additional hardware. The small modules contain all the important electronic parts to be connected to the microcontroller with a few plug-in cables, eliminating the need for a fiddly and time-consuming assembly on the plug-in board. In addition, it is also possible to handle tiny components that do not have any connecting legs (so-called SMDs).
Projects Discussed
Arduino seeks connection
BMP and introduction to libraries, I²C
Learn I/O basics with the multi-purpose shield
I²C LCD adapter and DOT matrix displays
LCD keypad shield
Level converter
W5100: Internet connection
I/O expansion shield
Relays and solid-state relays
The multi-function shield: A universal control unit
Connecting an SD card reader via SPI
Keys and 7-segment displays
16-bit ADC
MCP4725 DAC
16-way PWM servo driver
MP3 player
GPS data logger using an SD card
Touch sensor
Joystick
SHT31: Temperature and humidity
VEML6070 UV-A sensor
VL53L0X time-of-flight
Ultrasonic distance meter
MAX7219-based LED DOT matrix display
DS3231 RTC
Port expander MCP23017
433 MHz radio
MPU-650 gyroscope
ADXL345 accelerometer
WS2812 RGB LEDs
Power supply
MQ-xx gas sensors
CO2 gas sensor
ACS712 current sensor
INA219 current sensor
L298 motor driver
MFRC522 RFID
28BYJ-48 stepper motor
TMC2209 silent step stick
X9C10x digital potentiometer
ST7735 in a color TFT display
e-Paper display
Bluetooth
Geiger counter
SIM800L GSM module
I²C multiplexer
Controller Area Network
The Elektor MultiCalculator Kit is an Arduino-based multifunction calculator that goes beyond basic calculations. It offers 22 functions including light and temperature measurement, differential temperature analysis, and NEC IR remote control decoding. The Elektor MultiCalculator is a handy tool for use in your projects or for educational purposes.
The kit features a Pro Mini module as the computing unit. The PCB is easy to assemble using through-hole components. The enclosure consists of 11 acrylic panels and mounting materials for easy assembly. Additionally, the device is equipped with a 16x2 alphanumeric LCD, 20 buttons, and temperature sensors.
The Elektor MultiCalculator is programmable with the Arduino IDE through a 6-way PCB header. The available software is bilingual (English and Dutch). The calculator can be programmed with a programming adapter, and it is powered through USB-C.
Modes of Operation
Calculator
4-Ring Resistor Code
5-Ring Resistor Code
Decimal to Hexadecimal and Character (ASCII) conversion
Hexadecimal to Decimal and Character (ASCII) conversion
Decimal to Binary and Character (ASCII) conversion
Binary to Decimal and Hexadecimal conversion
Hz, nF, capacitive reactance (XC) calculation
Hz, µH, inductive reactance (XL) calculation
Resistance calculation of two resistors connected in parallel
Resistance calculation of two resistors connected in series
Calculation of unknown parallel resistor
Temperature measurement
Differential temperature measurement T1&T2 and Delta (δ)
Light measurement
Stopwatch with lap time function
Item counter
NEC IR remote control decoding
AWG conversion (American Wire Gauge)
Rolling Dice
Personalize startup message
Temperature calibration
Specifications
Menu languages: English, Dutch
Dimensions: 92 x 138 x 40 mm
Build time: approx. 5 hours
Included
PCB and though-hole components
Precut acrylic sheets with all mechanical parts
Pro Mini microcontroller module (ATmega328/5 V/16 MHz)
Programming adapter
Waterproof temperature sensors
USB-C cable
Downloads
Software
The FNIRSI FNB58 USB tester (with Bluetooth) is a comprehensive and very accurate USB voltage and current meter. It features a 2.0-inch full-color HD TFT display, built-in USB-A, micro USB and USB-C interface. With this device you can measure the power supply or power consumption of products or the charging power of cell phones and power supplies. You can also determine the fast charging protocol of chargers.
Features
USB-A and USB-C interface
2.0" HD display
Data at a glance
Wide compatibility
Ultra-precise data detection
Play with fast charging technology
Automatic protocol detection (PD2.0, 3.0, 3.1, PPS, QC2.0, 3.0, FCP, SCP, AFC, PE, DASH VOOC, SuperVOOC and more)
Simple user interface, easy to operate
4 function curve displays (real-time voltage and current curve, offline curve recording, D+/D- voltage curve, high-speed power supply ripple measurement)
Cable detection
10 groups of energy recording battery capacity calculation
PC connectivity for data logging and firmware updates
Bluetooth app for Android devices
Specifications
Voltage range
4-28 V
Current range
0-7 A
Power range
0-120 W
Load equivalent internal resistance
0-9999.9 Ω
D+/D- voltage
0-3.3 V
Capacity
0-9999.99 Ah
Power consumption
0-9999.99 Wh
Cable resistance
0-9999.9 Ω
Interfaces
micro USB, USB-A, USB-C
Dimensions
42 x 13 x 82 mm
Downloads
Manual
Firmware V0.68
The Arduino Micro contains everything needed to support the microcontroller; simply connect it to a computer with a micro USB cable to get started. It has a form factor that enables it to be easily placed on a breadboard.
The Micro board is similar to the Arduino Leonardo in that the ATmega32U4 has built-in USB communication, eliminating the need for a secondary processor. This allows the Micro to appear to a connected computer as a mouse and keyboard, in addition to a virtual (CDC) serial / COM port.
Specifications
Microcontroller
ATmega32U4
Operating Voltage
5 V
Input Voltage
7 V - 12 V
Analog Input Pins
12
PWM Pins
7
DC I/O Pin
20
DC Current per I/O Pin
20 mA
DC Current for 3.3 V Pin
50 mA
Flash Memory
32 KB of which 4 KB used by the bootloader
SRAM
2.5 KB
EEPROM
1 KB
Clock Speed
16 MHz
LED_Builtin
13
Length
45 mm
Width
18 mm
Weight
13 g
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.
Example projects with Node-RED, MQTT, WinCC SCADA, Blynk, and ThingSpeak
This comprehensive guide unlocks the power of Modbus TCP/IP communication with Arduino. From the basics of the Modbus protocol right up to full implementation in Arduino projects, the book walks you through the complete process with lucid explanations and practical examples.
Learn how to set up Modbus TCP/IP communication with Arduino for seamless data exchange between devices over a network. Explore different Modbus functions and master reading and writing registers to control your devices remotely. Create Modbus client and server applications to integrate into your Arduino projects, boosting their connectivity and automation level.
With detailed code snippets and illustrations, this guide is perfect for beginners and experienced Arduino enthusiasts alike. Whether you‘re a hobbyist looking to expand your skills or a professional seeking to implement Modbus TCP/IP communication in your projects, this book provides all the knowledge you need to harness the full potential of Modbus with Arduino.
Projects covered in the book:
TCP/IP communication between two Arduino Uno boards
Modbus TCP/IP communication within the Node-RED environment
Combining Arduino, Node-RED, and Blynk IoT cloud
Interfacing Modbus TCP/IP with WinCC SCADA to control sensors
Using MQTT protocol with Ethernet/ESP8266
Connecting to ThingSpeak IoT cloud using Ethernet/ESP8266