Table 3.

Datasheet of the Arduino Micro Development Board.

Dimension	35 mm × 18.5 mm × 4.5 mm
Microcontroller	ATmega32u4
Operating Voltage	5 V
Input Voltage (recommended)	7–12 V
Digital I/O Pins	20
PWM Channels	7
Analog Input Channels	12
DC Current for 5V Pin	40 mA
DC Current for 3.3V Pin	50 mA
Flash Memory	32 KB (ATmega32u4) of which 4 KB used by bootloader
SRAM	2.5 KB
EEPROM	1 KB
Clock Speed	16 MHz