Microcontroller atmel ATmega328-AU SMD ( Surface Mounted Device)
Microcontroller atmel AVR ATTINY13A-PU ATTINY13A DIP
pro mini arduino clone based on an ATMEL AVR ATmega328P at 16Mhz. An arduino bootloader is pre installed. So you can use natively the arduino IDE to program it The arduino IDE can be downloaded for free at arduino.cc