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<?php |
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namespace Ballen\GPIO; |
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use Ballen\GPIO\Adapters\RPiAdapter; |
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use Ballen\GPIO\Exceptions\GPIOException; |
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use Ballen\GPIO\Interfaces\AdapterInterface; |
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/** |
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* GPIO |
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* A RaspberryPi GPIO library written in PHP. |
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* |
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* @author Bobby Allen <[email protected]> |
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* @license http://www.gnu.org/licenses/gpl-3.0.html |
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* @link https://github.com/allebb/gpio |
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* @link http://www.bobbyallen.me |
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*/ |
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class GPIO |
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{ |
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/** |
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* GPIO Pin State Low |
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*/ |
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const LOW = 0; |
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/** |
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* GPIO Pin State High |
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*/ |
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const HIGH = 1; |
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/** |
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* GPIO Pin Type Input |
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*/ |
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const IN = "in"; |
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/** |
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* GPIO Pin Type Output |
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*/ |
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const OUT = "out"; |
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/** |
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* Supported GPIO BCM Pin numbers. |
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*/ |
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const PINS = [4, 5, 6, 12, 13, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27]; |
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/** |
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* The GPIO Interface Adapter. |
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* |
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* @var AdapterInterface |
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*/ |
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private $ioAdapter; |
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/** |
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* GPIO constructor. |
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* |
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* @param AdapterInterface|null $adapter |
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*/ |
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public function __construct(AdapterInterface $adapter = null) |
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{ |
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$this->ioAdapter = new RPiAdapter(); |
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if ($adapter) { |
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$this->ioAdapter = $adapter; |
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} |
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} |
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/** |
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* Configure a pin |
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* |
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* @param int $pin The GPIO pin number |
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* @param string $type The pin type (input or output) - Use GPIO::IN and GPIO::OUT |
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* @param bool $invert Invert the logic so that high->low and low->high |
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* @return Pin |
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* @throws GPIOException |
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*/ |
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public function pin(int $pin, string $type, bool $invert = false): Pin |
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{ |
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return new Pin($pin, $type, $this->ioAdapter, $invert); |
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} |
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/** |
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* Reset all of the GPIO pins. |
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* |
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* @return void |
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* @throws GPIOException |
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* |
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*/ |
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public function clear() |
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{ |
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foreach (GPIO::PINS as $pin) { |
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$reset = new Pin($pin, GPIO::OUT, $this->ioAdapter); |
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$reset->setValue(GPIO::LOW); |
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} |
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} |
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} |
allebb /
gpio
