The new generation" beetle" controller derives its core notion from minimalism without compromising functionality. It comes with atmel atmega32u4 @16MHz clock time and has expanded amounts of interfaces: 10 digital pins, 5 analog pins and 4 PWM pins. To further make it user-friendly, it is compatible with Micro USB so that direct programming and testing is no longer a headache. Select" arduino leonardo (tools > board > arduino leonardo in arduino ide), the atmega32u4 comes pre-burned with a bootloader that allows you to upload any new Code that is applicable to arduino leonardo.