Arduino MEGA 2560 is an extended version of Arduino UNO. It is mainly for more complex and larger projects.
It has 54 digital I/O (input/output) pins. From that 54 digital pins, 15 pins can be used as PWM outputs.
It has 16 analog pins and a big space for your sketch. It is a suggested board for 3D printers and robotics.
Arduino Mega is based on Atmega2560 microcontroller with 256 KB flash memory and 8 KB SRAM
Arduino Mega Pinout
|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 (ATmega2560)|
|Clock Speed||16 MHz|
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