Board Size: 33.1mm*17.9mm Microcontroller:ATmega32U4 Operating voltage:5 V recommended input voltage:5 - 12 V Digital inputs and outputs (I / O pins):12 (including 5 PWM outputs) Analog inputs:4 Current per I / O pin:40 mA Flash Storage:32 KB, of which 4 KB are used by the boot loader SRAM:2.5 KB EEPROM:1 KB Clock rate:16 MHz
