Designed with convenience and security in mind, the Ardi RFID Shield is based on the EM-18 module, operating at a frequency of 125 KHz. This shield allows you to easily integrate RFID (Radio Frequency Identification) technology into your projects, enabling seamless identification and access control systems.
Equipped with a powerful 1-channel optoisolated relay, the Ardi RFID Shield offers a reliable switching solution with a maximum DC rating of 30 V and 10 A, as well as an AC rating of 250 V and 7 A. Whether you need to control lights, motors, or other high-power devices, this shield provides the necessary functionality.
Additionally, the Ardi RFID Shield features an onboard buzzer that can be utilized for audio feedback, allowing for enhanced user interaction and system feedback. With the onboard 2-indication LEDs, you can easily monitor the status of RFID card detection, power supply, and relay activation, providing clear visual cues for your project's operation.
Compatibility is key, and the Ardi RFID Shield ensures seamless integration with the Arduino Uno platform. Paired with a read-only RFID module, this shield opens up a world of possibilities for applications such as access control systems, attendance tracking, inventory management, and more.
Features
Onboard 125 kHz EM18 RFID small, compact module
Onboard High-quality relays Relay with Screw terminal and NO/NC interfaces
Shield compatible with both 3.3 V and 5 V MCU
Onboard 3 LEDs power, relay ON/OFF State and RFID Scan status
Multi-tone Buzzer onboard for Audio alerts
Mounts directly onto ArdiPi, Ardi32 or other Arduino compatible boards
Specifications
RFID operating Frequency: 125 kHz
Reading distance: 10 cm, depending on TAG
Integrated Antenna
Relay Max Switching Voltage: 250 V AC/30 V DC
Relay Max Switching Current: 7 A/10 A
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Arduino Portenta Machine Control and Arduino Portenta H7A CAN-to-MQTT Gateway Demo Project
Unboxing the Elektor LCR Meter with David Cuartielles
MicroPython Enters the World of Arduino
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Introduction to TinyMLBig Is Not Always Better
Arduino K-Way
Writing Arduino Sketches Just Got Better
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Getting Started with the Portenta X8Manage Software Securely with Containers
Build, Deploy, and Maintain Scalable, Secure ApplicationsWith Arduino Portenta X8 Featuring NXP’s i.MX 8M Mini Applications Processor and EdgeLock SE050 Secure Element
How I Automated My HomeArduino CEO Fabio Violante Shares Solutions
Altair 8800 SimulatorHardware Simulation of a Vintage Computer
MS-DOS on the Portenta H7Run Old-School Software on Contemporary Hardware
Grow It YourselfA Digitally Controlled, Single-Box Solution for Indoor Farming
Save the Planet With Home Automation?MQTT on the Arduino Nano RP2040 Connect
Go Professional with Arduino Pro
Smart Ovens Take a Leap Into the Future
Tagvance Builds Safer Construction Sites with Arduino
Santagostino Breathes Easywith Remote Monitoring that Leverages AI for Predictive Maintenance
Security Flies High with RIoT Secure’s MKR-Based Solution
Open-Source Brings a New Generation of Water Management to the World
SensoDetect Deforestation with Sound Analysis
The Mozzi Arduino Library for Sound SynthesisInsights from Tim Barrass
The New Portenta X8 (with Linux!) and Max Carrier Redefine What’s Possible
How Using Arduino Helps Students Build Future Skills
Must-Haves for Your Electronics Workspace
The Importance of Robotics in Education
Dependable IoT Based Upon LoRa
Unboxing the Portenta Machine Control
8-Bit Gaming with Arduboy
Reducing Water Usage at Horseback Riding TracksAn IoT to Constantly Monitor Soil Humidity and Temperature Levels
The Panettone ProjectA sourdough starter management and maintenance system
Supporting Arduino Resellers
Space Invaders with Arduino
Art with ArduinoInspiring Insights from Artists and Designers
Arduino Product Catalogue
The Future of Arduino
The board contains everything needed to support the microcontroller; simply connect it to a computer with a micro-USB cable or power it with an AC-to-DC adapter or battery to get started. The Due is compatible with all Arduino shields that work at 3.3V and are compliant with the 1.0 Arduino pinout.
The Due follows the 1.0 pinout:
TWI: SDA and SCL pins that are near to the AREF pin.
IOREF: allows an attached shield with the proper configuration to adapt to the voltage provided by the board. This enables shield compatibility with a 3.3V board like the Due and AVR-based boards which operate at 5V.
An unconnected pin, reserved for future use.
Specifications
Operating Voltage
3.3 V
Input Voltage
7-12 V
Digital I/O
54
Analog Input Pins
12
Analog Output Pins
2 (DAC)
Total DC Output Current on all I/O Lines
130 mA
DC Current per I/O Pin
20 mA
DC Current for 3.3 V Pin
800 mA
DC Current for 5 V Pin
800 mA
Flash Memory
512 KB all available for the user applications
SRAM
96 KB
Clock Speed
84 MHz
Length
101.52 mm
Width
53.3 mm
Weight
36 g
Please note: Unlike most Arduino boards, the Arduino Due board runs at 3.3V. The maximum voltage that the I/O pins can tolerate is 3.3V. Applying voltages higher than 3.3V to any I/O pin could damage the board.
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
Although the Arduino isn’t a novelty any longer, there are still many beginners who want to try programming and development with a microcontroller, and to them, it is all new. All beginnings can be difficult, though they should be light and enjoyable.
You do not need much or expensive equipment for the examples. The circuits are built on a small breadboard, and, if necessary, connected to an Arduino Uno, which you can program on a Windows PC. You will find clear examples of how to build all circuits, ensuring easy and error-free reproduction.
Projects Discussed
Current & Voltage – How it all began
Arduino Hardware
Arduino Programming
The Electrical Circuit
Measuring with the Multimeter
Circuit Diagrams and Breadboards
Creating Circuit Diagrams
Breadboard Views with Fritzing
Online Circuit Simulation
Indispensable: Resistors (Part 1)
Hands-on with Resistors (Part 2)
Variable Resistors
Diodes: One-way Street for Current
The Transistor Switch
Electromagnetism
Relays and Motors
op-amps: Operational Amplifiers
Capacitors
The NE555 Timer
PWM and Analogue Values with Arduino
7-Segment Temperature Display
Introduction to Soldering and LCDs
The Arduino Nano RP2040 Connect is an RP2040-based Arduino board equipped with Wi-Fi (802.11b/g/n) and Bluetooth 4.2.
Besides wireless connectivity the board comes with a microphone for sound and voice activation and a six-axis smart motion sensor with AI capabilities. An RGB LED is available too. 22 GPIO ports (20 with PWM support and eight analogue inputs) let the user control e.g. relays, motors and LEDs and read switches and other sensors.
Program memory is plentiful with 16 MB of flash memory, more than enough room for storing many webpages or other data.
Specifications
Microcontroller
Raspberry Pi RP2040
USB connector
Micro USB
Pins
Built-in LED pins
13
Digital I/O pins
20
Analog Input pins
8
PWM pins
20 (Except A6, A7)
External interrupts
20 (Except A6, A7)
Connectivity
Wi-Fi
Nina W102 uBlox module
Bluetooth
Nina W102 uBlox module
Secure element
ATECC608A-MAHDA-T Crypto IC
Sensors
IMU
LSM6DSOXTR (6-axis)
Microphone
MP34DT05
Communication
UART
Yes
I²C
Yes
SPI
Yes
Power
Circuit operating voltage
3.3 V
Input Voltage (VIN)
5-21 V
DC Current per I/O pin
4 mA
Clock speed
Processor
133 MHz
Memory
AT25SF128A-MHB-T
16 MB Flash IC
Nina W102 uBlox module
448 KB ROM, 520 KB SRAM, 16 MB Flash
Dimensions
45 x 18 mm
Weight
6 g
Downloads
Schematics
Pinout
Datasheet
The Motorino board is an extension-board to control and use up to 16 PWM-controlled 5V-Servo-motors. The included clock generator ensures a very precise PWM signal and a very precise positioning. The board has 2 inputs for voltage from 4.8 V to 6 V which can be used for up to 11 A. With this input, a perfect power supply is always guaranteed and even bigger projects are no problem. The supply runs directly over the Motorino which provides a connection for voltage, ground and control. With the build in capacitor, the voltage is buffered which prevents a sudden voltage-drop at a high load. But there is also the possibility to connect another capacitor. The control and the programing can be done, as usual, with the Arduino. Manuals and code examples allows a quick introduction for beginners. Special features 16 Channels, own clock generator Input 1 Coaxial power connector 5.5 / 2.1 mm, 4.8-6 V / 5 A max Input 2 Screw-terminal, 4.8-6 V / 6 A max Communication 16 x PWM Compatible with Arduino Uno, Mega and may more microcontroller with Arduino compatible pinout Dimensions 69 x 24 x 56 mm Scope of supply Board, Manual, Retail package
Arduino Uno is an open-source microcontroller board based on the ATmega328P. It has 14 digital input/output pins (of which 6 can be used as PWM outputs), 6 analog inputs, a 16 MHz ceramic resonator (CSTCE16M0V53-R0), a USB connection, a power jack, an ICSP header and a reset button. It contains everything needed to support the microcontroller; simply connect it to a computer with a USB cable or power it with a AC-to-DC adapter or battery to get started. You can tinker with your Uno without worring too much about doing something wrong, worst case scenario you can replace the chip for a few dollars and start over again.
'Uno' means one in Italian and was chosen to mark the release of Arduino Software (IDE) 1.0. The Uno board and version 1.0 of Arduino Software (IDE) were the reference versions of Arduino, now evolved to newer releases. The Uno board is the first in a series of USB Arduino boards, and the reference model for the Arduino platform; for an extensive list of current, past or outdated boards see the Arduino index of boards.
Specifications
Microcontroller
ATmega328P
Operating Voltage
5 V
Input Voltage (recommended)
7-12 V
Input Voltage (limit)
6-20 V
Digital I/O Pins
14 (of which 6 provide PWM output)
PWM Digital I/O Pins
6
Analog Input Pins
6
DC Current per I/O Pin
20 mA
DC Current for 3.3 V Pin
50 mA
Flash Memory
32 KB (ATmega328P) of which 0.5 KB used by bootloader
SRAM
2 KB (ATmega328P)
EEPROM
1 KB (ATmega328P)
Clock Speed
16 MHz
LED_BUILTIN
13
Dimensions
68.6 x 53.4 mm
Weight
25 g
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 Arduino Nano 33 BLE Rev2 stands at the forefront of innovation, leveraging the advanced capabilities of the nRF52840 microcontroller. This 32-bit Arm Cortex-M4 CPU, operating at an impressive 64 MHz, empowers developers for a wide range of projects. The added compatibility with MicroPython enhances the board's flexibility, making it accessible to a broader community of developers.
The standout feature of this development board is its Bluetooth Low Energy (Bluetooth LE) capability, enabling effortless communication with other Bluetooth LE-enabled devices. This opens up a realm of possibilities for creators, allowing them to seamlessly share data and integrate their projects with a wide array of connected technologies.
Designed with versatility in mind, the Nano 33 BLE Rev2 is equipped with a built-in 9-axis Inertial Measurement Unit (IMU). This IMU is a game-changer, offering precise measurements of position, direction, and acceleration. Whether you're developing wearables or devices that demand real-time motion tracking, the onboard IMU ensures unparalleled accuracy and reliability.
In essence, the Nano 33 BLE Rev2 strikes the perfect balance between size and features, making it the ultimate choice for crafting wearable devices seamlessly connected to your smartphone. Whether you're a seasoned developer or a hobbyist embarking on a new adventure in connected technology, this development board opens up a world of possibilities for innovation and creativity. Elevate your projects with the power and flexibility of the Nano 33 BLE Rev2.
Specifications
Microcontroller
nRF52840
USB connector
Micro USB
Pins
Built-in LED Pins
13
Digital I/O Pins
14
Analog Input Pins
8
PWM Pins
All digital pins (4 at once)
External interrupts
All digital pins
Connectivity
Bluetooth
u-blox NINA-B306
Sensors
IMU
BMI270 (3-axis accelerometer + 3-axis gyroscope) + BMM150 (3-axis Magnetometer)
Communication
UART
RX/TX
I²C
A4 (SDA), A5 (SCL)
SPI
D11 (COPI), D12 (CIPO), D13 (SCK). Use any GPIO for Chip Select (CS)
Power
I/O Voltage
3.3 V
Input Voltage (nominal)
5-18 V
DC Current per I/O Pin
10 mA
Clock Speed
Processor
nRF52840 64 MHz
Memory
nRF52840
256 KB SRAM, 1 MB flash
Dimensions
18 x 45 mm
Downloads
Datasheet
Schematics
The board's main processor is a low-power ARM Cortex-M0 32-bit SAMD21, like in the other boards within the Arduino MKR family. The WiFi and Bluetooth connectivity is performed with a module from u-blox, the NINA-W10, a low-power chipset operating in the 2.4 GHz range. On top of that, secure communication is ensured through the Microchip ECC508 crypto chip. Besides that, you can find a battery charger, and an RGB LED on-board.
Official Arduino WiFi Library
You can get your board to connect to any kind of existing WiFi network, or use it to create your own Arduino Access Point. The specific set of examples we provide for the MKR WiFi 1010 can be consulted at the WiFiNINA library reference page.
Compatible with other Cloud Services
It is also possible to connect your board to different Cloud services, Arduino's own among others. Here are some examples of how to get the MKR WiFi 1010 to connect to:
Blynk: a simple project from the Arduino community connecting to Blynk to operate your board from a phone with little code
IFTTT: in-depth case of building a smart plug connected to IFTTT
AWS IoT Core: Arduino made this example on how to connect to Amazon Web Services
Azure: visit this GitHub repository explaining how to connect a temperature sensor to Azure's Cloud
Firebase: you want to connect to Google's Firebase, this Arduino library will show you how
Specifications
Microcontroller
SAMD21 Cortex-M0+ 32bit low power ARM MCU
Radio Module
u-blox NINA-W102
Power Supply
5 V
Secure Element
ATECC508
Supported Battery
Li-Po Single Cell, 3.7 V, 1024 mAh Minimum
Operating Voltage
3.3 V
Digital I/O Pins
8
PWM Pins
13
UART
1
SPI
1
I2C
1
Analog Input Pins
7
Analog Output Pins
1
External Interrupts
10
Flash Memory
256 KB
SRAM
32 KB
EEPROM
No
Clock Speed
32.768 kHz, 48 MHz
LED_Builtin
6
USB
Full-Speed USB Device and embedded Host
Length
61.5 mm
Width
25 mm
Weight
32 g