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Chapter 2 provides an overview of Arduino family controllers, drawings and technical parameters.

The main versions of Arduino boards are represented by the following models:

· Due – board based on 32-bit ARM microprocessor Cortex-M3 ARM SAM3U4E;

· Leonardo – ATmega32u4 microcontroller board;

· Uno is the most popular version of the Arduino base platform;

· Duemilanove – ATmega168 or ATmega328 microcontroller board;

· Diecimila is a version of the basic Arduino USB platform;

· Nano is a compact platform used as a layout. Nano is connected to the computer using a USB Mini-B cable;

· Mega ADK – a version of the Mega 2560 board with support for the USB-host interface for communication with Android phones and other devices with USB interface;

· Mega2560 – a board based on the ATmega2560 microcontroller using the ATmega8U2 chip for serial connection via USB port;

· Mega – version of the Mega series based on the ATmega1280 microcontroller;

· Arduino BT – platform with Bluetooth module for wireless communication and programming;

· LilyPad – a platform designed for carrying, can be sewn into fabric;

· Fio platform is designed for wireless applications. Fio contains an XBee radio connector, a LiPo battery connector and a built-in charging circuit;

· Mini0 is the smallest Arduino platform;

· A pro platform designed for experienced users may be part of a larger project;

· Pro Mini – like the Pro platform, it is designed for experienced users who need a low price, smaller dimensions and additional functionality.

2.1. Arduino Pro Mini

Arduino Pro Mini (Fig. 2.1) is built on the ATmega168 microcontroller.

Figure 2.1. Arduino Pro Mini Board

The characteristics of the Arduino Pro Mini board are presented in Table 2.1.

Arduino Pro Mini can receive power: via an FTDI cable, or from a converter board, or from an adjustable 3.3V or 5V power supply (depending on the platform model) via the VCC pin, or from an unregulated source via the RAW pin.

Power terminals:

· RAW – for connection of unregulated voltage;

· VCC – for connection of regulated 3.3 V or 5 V;

· GND – ground terminals.

2.2. Arduino Nano

The Nano platform (Fig. 2.2), built on the ATmega328 microcontroller (Arduino Nano 3.0) or ATmega168 (Arduino Nano 2.x), is small in size and can be used in laboratory work.

Fig. 2.2. Arduino Nano Board

The Arduino Nano can be powered via a USB Mini-B connection, or from an unregulated 6—20 V (pin 30) or an adjustable 5V (pin 27) external power supply. The source with the highest voltage is automatically selected.

The characteristics of the Arduino Nano board are presented in Table 2.2.

2.3. Arduino Uno

The Arduino Uno controller (Fig. 2.3) is built on the ATmega328 microcontroller. Unlike all previous boards that used the FTDI USB microcontroller for USB communication, the new Arduino Uno uses the ATmega8U2 microcontroller.

Figure 2.3. Arduino Uno Board

The characteristics of the Arduino Uno board are presented in Table 2.3.

2.4. Arduino Mega2560

The Arduino Mega (Fig. 2.4) is built on the ATmega2560 microcontroller.

Рис. 2.4. Плата Arduino Mega2560

The characteristics of the Arduino Mega2560 board are presented in Table 2.4.