Specifications:
✔ Microcontroller: ATmega2560
✔ Clock Speed: 16MHz
✔ Inputs/Outputs: 54 digital (15 PWM), 16 analog
✔ Flash Memory: 256KB (4KB EEPROM)
✔ Power Supply: USB (5V) or external source (7-12V)
✔ 4 UART (serial ports) and expanded functionality