Tech specs
Microcontroller = ATmega2560
Operating Voltage = 5V
Input Voltage (recommended) = 7-12V
Input Voltage (limit) = 6-20V
Digital I/O Pins = 54 (of which 15 provide PWM output)
Analog Input Pins = 16
DC Current per I/O Pin = 20 mA
DC Current for 3.3V Pin = 50 mA
Flash Memory = 256 KB of which 8 KB used by bootloader
SRAM = 8 KB
EEPROM = 4 KB
Clock Speed = 16 MHz
LED_BUILTIN = 13
Length = 101.52 mm
Width = 53.3 mm
Weight = 37 g