The Arduino UNO is the most used board in the family of Arduino boards.
The Arduino Nano is a small, complete, and breadboard-friendly board based on the ATmega328.
The LilyPad Arduino family of boards has been designed for wearable applications. It works on rechargeable batteries and allows easy connection with sensors and actuators developed for an easy
FT232RL FTDI Basic USB to serial for Arduino upload cable USB TO 232 FT232 USB to TTL module
The MEGA 2560 is designed for more complex projects. With 54 digital I/O pins, 16 analog input.