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
Technical Specification
| Microcontroller | ATmega2560 |
| Operating Voltage | 5V |
| 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) |
| EEPROM | 4 KB |
| Clock Speed | 16 MHz |
| LED_BUILTIN | 13 |
| Length | 101.52 mm |
| Width | 53.3 mm |
| Weight | 37 g |
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