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			|  | 1 | +<?php
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			|  | 2 | +/**
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			|  | 3 | + * Created by PhpStorm.
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			|  | 4 | + * User: robin
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			|  | 5 | + * Date: 11/24/15
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			|  | 6 | + * Time: 12:49 AM
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			|  | 7 | + */
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			|  | 8 | +
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			|  | 9 | +namespace App\Http\Business\Sensors;
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			|  | 10 | +
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			|  | 11 | +use App\Http\DBO\SensorsValueDbo;
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			|  | 12 | +
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			|  | 13 | +class PiFaceSensor extends AbstractSensor
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			|  | 14 | +{
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			|  | 15 | +    /**
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			|  | 16 | +     * @return SensorsValueDbo
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			|  | 17 | +     */
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			|  | 18 | +    public function getValue()
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			|  | 19 | +    {
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			|  | 20 | +        $data = $this->_sensor->getData();
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			|  | 21 | +
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			|  | 22 | +        $device = intval(isset($data['Device']) ? $data['Device'] : 0);
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			|  | 23 | +        $pin = intval(isset($data['Pin']) ? $data['Pin'] : 0);
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			|  | 24 | +        $trueValue = intval(isset($data['True']) ? $data['True'] : 0);
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			|  | 25 | +        $falseValue = intval(isset($data['False']) ? $data['False'] : 0);
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			|  | 26 | +
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			|  | 27 | +        $args = [
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			|  | 28 | +            'camotion-piface',
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			|  | 29 | +            escapeshellarg('--device=' . $device),
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			|  | 30 | +            escapeshellarg('--read=' . $pin)
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			|  | 31 | +        ];
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			|  | 32 | +        $cli = implode(' ', $args) . ' | grep Pin | grep -Eo "[01]$"';
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			|  | 33 | +        $code = 0;
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			|  | 34 | +        $output = [];
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			|  | 35 | +        exec($cli, $output, $code);
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			|  | 36 | +        if ($code != 0) {
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			|  | 37 | +            abort(500, "PiFace failed with code " . $code);
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			|  | 38 | +        }
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			|  | 39 | +
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			|  | 40 | +        $value = new SensorsValueDbo();
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			|  | 41 | +        $value->setValue($output);
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			|  | 42 | +        return $value;
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			|  | 43 | +    }
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			|  | 44 | +}
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