1.Microcontroller:ATmega2560.

2.Operating Voltage:5V.

3.Input Voltage (recommended:)7-12V.

4.Input Voltage (limits):6-20V.

5.Digital I/O Pins:54 (of which 15 provide PWM output).

6.Analog Input Pins:16.

7.DC Current per I/O Pin:40 mA.

8.DC Current for 3.3V Pin:50 mA.

9.Flash Memory:256 KB of which 8 KB used by bootloader.

10.SRAM:8 KB.

11.EEPROM:4 KB.

12.Clock Speed:16 MHz.