Arduino Leonardo With ATmega32u4

The Arduino Leonardo with ATmega32u4 is a microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro 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 a AC-to-DC adapter or battery to get started.Microcontroller: ATmega32u4Operating voltage: 5 VSupply voltage (recommended): 7-12 VSupply voltage (limits): 6-20 VNumber of digital I/O pins: 20Number of PWM pins: 7Number of analog input pins: 12Max DC current for each I/O pins: 40 mADC current for 3.3 V out: 50 mAMax DC current for 3.3 V pin: 1 A (if supplied with an external adapter)Flash memory: 32 kB (ATmega32u4, 4 kB is used by bootloader)SRAM: 2.5 kB (ATmega32u4)EEPROM: 1kB (ATmega32u4)Clock speed: 16 MHz