The Arduino Uno R3 is a microcontroller board based on a removable, dual-inline-package (DIP) ATmega328 AVR microcontroller. It has 20 digital input/output pins (of which 6 can be used as PWM outputs and 6 can be used as analog inputs). Programs can be loaded on to it from the easy-to-use Arduino computer program. The Arduino has an extensive support community, which makes it a very easy way to get started working with embedded electronics. The R3 is the third, and latest, revision of the Arduino Uno.
The Arduino Yun has the same footprint as an Arduino Uno but combines an ATmega32U4 microcontroller (the same as the Leonardo) and a Linux system based on the Atheros AR9331 chipset. Additionally, there are built-in Ethernet and WiFi capabilities, enabling it to communicate with networks out of the box. The combination of the classic Arduino programming experience and advanced internet capabilities afforded by a Linux system make the Yún a powerful tool for communicating with the internet of things.
The Arduino Leonardo is a microcontroller board based on the ATmega32U4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro 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 (USB cable and power supply are not included). This board ships with the female header pins soldered in, as shown in the product picture.
The Arduino Micro is essentially a shrunk-down (1.9″ × 0.7″) version of the Arduino Leonardo: it is a microcontroller board based on the ATmega32U4 running at 16 MHz with 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs). This board ships with the male header pins soldered in, as shown in the product picture.
The Arduino Mega 2560 R3, the successor to the Arduino Mega, is a microcontroller board based on a ATmega2560 AVR microcontroller. It has 70 digital input/output pins (of which 14 can be used as PWM outputs and 16 can be used as analog inputs), a 16 MHz resonator, a USB connection, a power jack, an in-circuit system programming (ICSP) header, and a reset button. The Arduino has an extensive support community, which makes it a very easy way to get started working with embedded electronics.
The Arduino Due is the first Arduino with an ARM-based microcontroller. It is based on the Atmel SAM3X8E ARM Cortex-M3 CPU that enables a higher level of performance compared to Arduinos with 8-bit microcontrollers. The Arduino Due has 54 digital input/output pins (of which 12 can be used as PWM outputs), 12 analog inputs, 4 UARTs (hardware serial ports), a 84 MHz clock, a USB OTG capable connection, 2 DAC (digital to analog converters), 2 TWI, a power jack, an SPI header, a JTAG header, and reset and erase buttons.
The SparkFun Inventor’s Kit has everything you need to construct a variety of circuits that will teach you how to use an Arduino-compatible RedBoard to read sensors, display information on an LCD, drive motors, and more. No previous programming or electronics experience is necessary, which makes this a great way for beginners to get started with embedded systems. The V3.1 version includes a RedBoard and detailed instructions for building 15 educational circuits with the kit components.
The SparkFun Starter Kit for RedBoard makes it easy to get started building entertaining and educational circuits with SparkFun’s RedBoard, an Arduino clone that is mostly compatible with the Uno R3. The kit includes a RedBoard along with various types of sensors and indicators to get you started in the wonderful world of embedded electronics.
The Arduino Robot is the first official Arduino on wheels. The robot chassis is comprised of two serially connected platforms, each of which features an ATmega32U4 and acts as an independent Arduino board. The upper platform, called the Control Board, includes a five-button keypad, knob potentiometer, color LCD, SD card reader (with SD card), speaker, and digital compass. The lower platform, or Motor Board, controls the two integrated DC motors and includes five reflectance sensors that can be used for line following or edge detection. The robot ships fully assembled and includes a USB cable, rechargable batteries, and a wall adapter for charging.