Example for MCP3008 with PHPi

adc_gpio.php

<?php

include __DIR__.'/../vendor/autoload.php';

use Calcinai\PHPi\Peripheral\SPI;
use Calcinai\PHPi\Pin\PinFunction;
use Calcinai\PHPi\External\ADC\Microchip\MCP3008;

$board = \Calcinai\PHPi\Factory::create();

//Flip the appropriate pins to their alt functions
$board->getPin(10)->setFunction(PinFunction::SPI0_MOSI);
$board->getPin(9)->setFunction(PinFunction::SPI0_MISO);
$board->getPin(11)->setFunction(PinFunction::SPI0_SCLK);
$board->getPin(8)->setFunction(PinFunction::SPI0_CE0_N);

$adc = new MCP3008($board->getSPI(SPI::SPI0), 0);
$pin = $board->getPin(18);

//In 10-bit, will be between 0 and 1024
$value = $adc->getChannel(0)->read();

if($value > 500){
    $pin->high();
} else {
    $pin->low();
}

Hi,
where can I find autoload.php?
Thanks in advance