Arduino Board

The Arduino Mega 2560 R3 is a microcontroller board based on the ATmega2560. It has 54 digital input/output pins (of which 15 can be used as PWM outputs), 16 analog inputs, 4 UARTs (hardware serial ports), a 16 MHz crystal oscillator, 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 an AC-to-DC adapter or battery to get started. The Mega 2560 R3 board is compatible with most shields designed for Arduino/Genuino Uno and the former boards Duemilanove or Diecimila.

Arduino Micro ATmega32U4 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 24 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 Nano is a small, complete, and breadboard-friendly board based on the ATmega328 (Arduino Nano 3.x). Arduino Nano has more or less the same functionality as the Arduino UNO but in a different package.

Arduino Pro Mini ATMEGA328P is a 3.3V Arduino (Official Version) running the 8MHz bootloader. Arduino Pro Mini ATMEGA328P comes with connectors so that you can solder connectors or wires with any orientation you need. We recommend the first-time Arduino users start with the Uno R3. It’s a great board that will get you up and be running quickly. The Arduino Pro series is meant for users that understand the limitations of system voltage (3.3V), lack of connectors, and USB off-board.

The Arduino Pro Mini 5v 16mhz ATMEGA328 is intended for advanced users who require flexibility, low cost, and small size. It comes with a minimum of components (no onboard USB or pin headers) to keep the cost down. Be sure to provide the correct power and use components whose operating voltage matches that of the board.

This is improved Arduino Uno R3 is one of the latest versions of Arduino Uno with an onboard CH340 USB – serial converter chip. This provides you a cheaper opportunity to get started with Arduino boards. The microcontroller model of this board is the same as the original one (Atmega328). The only difference between microcontrollers is the package. The original one has a DIP package but the clone one has an SMD package microcontroller. It’s more powerful as compared to the dip version.