Controlling Arduino With PHP

PHPSummit - September 2014

Transcript

1. ARDUINO WITH PHP CONNECTIONS TO THE PHYSICAL WORLD @ThomasWeinert
2. ARDUINO Arduino is an open-source electronics prototyping platform based on flexible, easy-to- use hardware and software. It's intended for artists, designers, hobbyists and anyone interested in creating interactive objects or environments.
3. ARDUINO UNO
4. ARDUINO MEGA
5. SHIELDS HTTP://SHIELDLIST.ORG/
6. NETWORK
7. PROTOTYPE
8. MOTOR
9. ARDUINO NANO
10. NANO ON BREADBOARD
11. NANO ON BASE
12. BREADBOARD
13. BREADBOARD HALFSIZE
14. BREADBOARD SCHEMA
15. BREADBOARD IN USE
16. BREADBOARD IN USE
17. FRITZING http://fritzing.org 1 1 5 5 10 10 15 15 20 20 25 25 30 30 A A B B C C D D E E F F G G H H I I J J
18. ARDUINO IDE
20. FIRMATA
21. FIRMATA PROTOCOL Midi Based Pin Status Pin Manipulation Extended Commands
22. FIRMATA TEST
23. FIRMATA TEST PHP
25. PHP - SERIAL PORTS + Just streams - Console commands for configuration
26. WINDOWS - fread() blocks until it gets data.
27. SERPROXY
28. GORILLA PHPMAKE\SERIALPORT https://github.com/oasynnoum/phpmake_serialport
29. FIRST PROJECT
30. COMPOSER CREATE composer create-project carica/chip-skeleton led --stability=dev
32. CONFIGURE BOOTSTRAP /** * serial - serial connection * tcp - tcp connection (network shield or serproxy) */ define('CARICA_FIRMATA_MODE', 'serial'); define('CARICA_FIRMATA_SERIAL_DEVICE', '/dev/tty0'); define('CARICA_FIRMATA_SERIAL_BAUD', 57600); define('CARICA_FIRMATA_TCP_SERVER', '127.0.0.1'); define('CARICA_FIRMATA_TCP_PORT', 5339);
33. SKELETON $board = include(__DIR__.'/bootstrap.php'); use Carica\Chip as Chip; $board ->activate() ->done( function () use ($board) { // Start here! } ); Carica\Io\Event\Loop\Factory::run();
34. LED OBJECT $board = include(__DIR__.'/bootstrap.php'); use Carica\Chip as Chip; $board ->activate() ->done( function () use ($board) { $led = new Chip\Led($board->pins[13]); $led->strobe(2000)->on(); } ); Carica\Io\Event\Loop\Factory::run();
35. Io Event Loop Server Firmata Protocol Chip Devices 010001000100 111000111000 011111110001 100100100111 100100101100 001100110110
36. CARICA CHIP $led = new Carica\Chip\Led($board->pins[13]); $led->strobe()->on();
37. CARICA CHIP $led = new Carica\Chip\Led($board->pins[13]); $led->pulse()->on();
38. CARICA CHIP $led = new Carica\Chip\Led($board->pins[13]); $led->brightness(0.5)->pulse()->on();
39. CARICA FIRMATA $board ->activate() ->done( function () use ($board) { $led = new Carica\Chip\Led($board->pins[13]); $led->strobe()->on(); } ); Carica\Io\Event\Loop\Factory::run();
40. BASIC BLINK $board->pinMode(13, 0x01); while (TRUE) { $board->digitalWrite(13, 0xFF); sleep(1); $board->digitalWrite(13, 0x00); sleep(1); }
41. BASIC BLINK OOP $board->pins[13]->mode = Carica\Firmata\Pin::MODE_OUTPUT; while (TRUE) { $board->pins[13]->digital = !$board->pins[13]->digital; sleep(1); }
42. BLINK NONBLOCKING $loop = Io\Event\Loop\Factory::get(); $board ->activate() ->done( function () use ($board, $loop) { $pin = $board->pins[13]; $pin->mode = Firmata\Pin::MODE_OUTPUT; $loop->setInterval( function () use ($pin) { $pin->digital = !$pin->digital; }, 1000 ); } ); $loop->run();
43. CARICA IO Event Loop Event Emitter Promises
44. EVENT LOOP
45. JAVASCRIPT EXAMPLE var e = document.getElementById('output'); var counter = 0; var interval = window.setInterval( function() { e.textContent = e.textContent + counter.toString() + ', '; counter++; }, 1000 );
46. PHP EXAMPLE $loop = Carica\Io\Event\Loop\Factory::get(); $loop->setInterval( function () { static $i = 0; echo $i++; }, 1000 ); $loop->run();
47. PROMISES They describe an object that acts as a proxy for a result that is initially unknown, usually because the computation of its value is yet incomplete.
48. JAVASCRIPT EXAMPLE jQuery .get('hello-world.xml') .done( function (xml) { alert('loaded.'); } ) );
49. PHP EXAMPLE $mysqlOne = new Carica\Io\Deferred\MySQL(new mysqli('localhost')); $mysqlTwo = new Carica\Io\Deferred\MySQL(new mysqli('localhost')); $time = microtime(TRUE); $debug = function($result) use ($time) { var_dump(iterator_to_array($result)); var_dump(microtime(TRUE) - $time); }; $queries = Carica\Io\Deferred::When( $mysqlOne("SELECT 'Query 1', SLEEP(5)") ->done($debug), $mysqlTwo("SELECT 'Query 2', SLEEP(1)") ->done($debug) ); Carica\Io\Event\Loop\Factory::run($queries);
50. EVENT EMITTER $stream = new Stream\File('c:/tmp/sample.txt'); $stream->events()->on( 'read-data', function($data) { echo $data; } ); $stream->events()->on( 'error', function($error) use ($loop) { echo $error; $loop->stop(); } );
51. INTERACTION
52. HTTPSERVER use Carica\Io\Network\Http; $route = new Http\Route(); $route->match( '/hello/{name}', function (Http\Request $request, $parameters) { $response = $request->createResponse( new Http\Response\Content\String( "Hello ".$parameters['name']."!\n" ) ); return $response; } );
53. FILES $route->match('/hello', new Http\Route\File(__DIR__.'/files/hello.html')); $route->startsWith('/files', new Http\Route\Directory(__DIR__)); $server = new Carica\Io\Network\Http\Server($route); $server->listen(8080);
54. INTERACTIVE LED
55. HTML FILE <!DOCTYPE html> <html> <head> <title>Led Switch</title> </head> <body> <form action="./switch/on" target="iframe"> <button type="submit">On</button> </form> <form action="./switch/off" target="iframe"> <button type="submit">Off</button> </form> <iframe style="width: 200px; height: 40px; border: none;" src="about:blank" name="iframe"></ifra </body> </html>
56. PHP SERVER use Carica\Io\Network\Http; $board ->activate() ->done( function () use ($board) { $led = new Carica\Chip\Led($board->pins[20]); $route = new Http\Route(); $route->match( '/switch/{state}', function (Http\Request $request, array $parameters) use ($led) { if ($parameters['state'] == 'on') { $led->on(); $message = 'ON'; } else { $led->off(); $message = 'OFF'; } $response = $request->createResponse(); $response->content = new Http\Response\Content\String( $message, 'text/plain; charset=utf-8' ); return $response; } ); $route->match('/', new \Carica\Io\Network\Http\Route\File(__DIR__.'/index.html')); $server = new Carica\Io\Network\Http\Server($route);
57. COLOR CIRCLE
58. SERVER function () use ($board) { $led = new Carica\Chip\Rgb\Led( $board->pins[3], $board->pins[5], $board->pins[6] ); $route = new Carica\Io\Network\Http\Route(); $route->match( '/rgb', function (Http\Request $request) use ($led) { $color = isset($request->query['color']) ? $request->query['color'] : '#000'; $led->color($color)->on(); $response = $request->createResponse(); $response->content = new Http\Response\Content\String( 'Color: '.$color ); return $response; } ); $route->startsWith('/files', new Http\Route\Directory(__DIR__)); $route->match('/', new Http\Route\File(__DIR__.'/index.html')); $server = new Carica\Io\Network\Http\Server($route); $server->listen(8080); }
59. REACTPHP { "require": { "react/react": "0.4.*" } }
60. RATCHET { "require": { "cboden/ratchet": "0.3.*" } }
61. SENSOR PHALANX 1:07
62. SHIFTOUT()
63. SHIFTOUT() $loop->setInterval( function () use ($board, $latchPin, $clockPin, $dataPin) { static $number = 0; $latchPin->digital = FALSE; $board->shiftOut($dataPin->pin, $clockPin->pin, $number); $latchPin->digital = TRUE; if (++$number > 255) { $number = 0; } }, 1000 );
64. SHIFTOUT() 0:15
65. 7 SEGMENT DISPLAYS
66. 7 SEGMENT DISPLAYS $loop->setInterval( function () use ( $board, $latchPin, $clockPin, $dataPin, $numbers, $segments ) { static $number = 0; $digits = str_pad($number, $segments, 0, STR_PAD_LEFT); $bytes = []; for ($i = strlen($digits) - 1; $i >= 0; $i--) { $bytes[] = 0xFF ^ (int)$numbers[$digits[$i]]; } $latchPin->digital = FALSE; $board->shiftOut( $dataPin->pin, $clockPin->pin, $bytes ); $latchPin->digital = TRUE; if (++$number > (pow(10, $segments) - 1)) { $number = 0; } }, 100 );
67. 7SEG DISPLAYS 0:05
68. MAX7219 8 Digit - 7Segment Display 8x8 Matrix Displays
69. $max = new Carica\Chip\Max7219\Matrix( $board, 11, 12, 8 ); $displayCount = 4; for ($i = 0; $i < $displayCount; $i++) { $max->addDisplay($i * 8, 0); } $image = imagecreatefrompng(__DIR__.'/elephpant-animation.png'); $max->scrollX($image, -17, 150)->brightness(0.5)->on();
70. 0:00
71. THANKS