Technical Specification:
Microcontroller: ATmega+2560
Operating Voltage: 5V ; Input: Voltage (recommended):7-9V
Digital I/O Pins: 54 (of which 15 provide PWM output)
Analog Input Pins: 16 DC
Current per I/O Pin: 40 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: 101.5 mm Width: 53.3 mm Weight: 34 g