Arduino MEGA2560 MEGA Development Board

• An excellent microcontroller board for complex electronics applications is the Arduino Mega.
• The Mega provides unmatched versatility and expandability with its sixteen analog inputs, four serial ports, and fifty-four digital input/output pins.
• Whether you're a novice or an experienced engineer looking to construct complex projects, this board is the ideal choice.
• The Arduino Mega delivers a special blend of power and simplicity with its extensive feature set and intuitive programming interface.

Specifications:

• Microcontroller: ATmega2560
• Operating Voltage: 5V
• Input Voltage: 7-12V
• 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

Getting started with the Arduino Mega 2560:

https://docs.arduino.cc/tutorials/mega-2560/getting-started/