/products/arduino/arduino-projects/b/blog/posts/nexgen-arduino-mega-ports-vs-pin-numbersPINPORTsFunction22 .PORTA 023 .PORTA 124 .PORTA 225 .PORTA 326 .PORTA 427 .PORTA 528 .PORTA 629 .PORTA 753.PORTB 0SPI_SS52.PORTB 1SPI_SCK51.PORTB 2SPI_MOSI50.PORTB 3SPI_MISO10 .P...en-USTelligent Community 12