Tech specs : -
Microcontroller - ATmega32U4
Operating Voltage - 5V
Input Voltage (recommended) -7-12V
Digital I/O Pins - 20
PWM Channels - 7
Analog Input Channels - 12
DC Current per I/O Pin - 20 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 (ATmega32U4)
EEPROM - 1 KB (ATmega32U4)
Clock Speed - 16 MHz
LED_BUILTIN - 13
Length - 48 mm
Width - 18 mm
Weight - 13 g