<?php require_once __DIR__."/../vendor/autoload.php"; use NoccyLabs\Gpio\GpioMapper\WiringPiMapper; use NoccyLabs\Gpio\Exception\GpioException; $mapper = new WiringPiMapper(2); $pin = 0; try { while (($gpio = $mapper->mapLogicalToGpioPin($pin))) { printf(" %3d = GPIO%d \n", $pin, $gpio); $pin++; } } catch (GpioException $e) { }