mezelve/BlinkM.nut

## BlinkM.nut
// BlinkM MaxM controlled by a web form
// http://thingm.com/products/blinkm-maxm.html
server.log("BlinkM Started");

local addr = 0x09;
local rgb = null;
local i2cPort = null;

// Hardware Configuration
//pin 8 -> SCL -> blinkm c
//pin 9 -> SDA -> blinkm d
hardware.configure(I2C_89);
hardware.i2c89.configure(CLOCK_SPEED_100_KHZ);
i2cPort = hardware.i2c89;

// Convert hex string to an integer
//borrowed from http://devwiki.electricimp.com/doku.php?id=webcolor&s[]=hextointeger
function hexToInteger(hex)
{
    //server.log(hex);
    local result = 0;
    local shift = hex.len() * 4;

    // For each digit..
    for(local d=0; d<hex.len(); d++)
    {
        local digit;

        // Convert from ASCII Hex to integer
        if(hex[d] >= 0x61)
            digit = hex[d] - 0x57;
        else if(hex[d] >= 0x41)
             digit = hex[d] - 0x37;
        else
             digit = hex[d] - 0x30;

        // Accumulate digit
        shift -= 4;
        result += digit << shift;
    }

    return result;
}
class setRGB extends InputPort {
    function set(col) {
        server.show(col);
        local r = hexToInteger(col.slice(1,3));
        local g = hexToInteger(col.slice(3,5));
        local b = hexToInteger(col.slice(5,7));
        server.log(r+", "+g+", "+b);
        //blinkm: stop script
        i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + "o");
        // "f" -> Set Fade Speed, 1 -> slow, 255 -> instantly
        i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + format("f%c", 10));
        // data c%c%c%c -> "c" + r + g + b
        // "c" -> Fade to RGB Color
        // "n" -> Go to RGB Color Now
        i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + format("c%c%c%c", r, g, b));
    }
}

imp.configure("BlinkM", [setRGB()], []);

## color.php
<?php

$postdata = http_build_query(
    array(
        'value' => $_GET['value']
    )
);

$opts = array('http' =>
    array(
        'method'  => 'POST',
        'header'  => 'Content-type: application/x-www-form-urlencoded',
        'content' => $postdata
    )
);

$context = stream_context_create($opts);

$result = file_get_contents(___HTTP_IN_URL__YOU_CAN_FIND_IT_IN_YOUR_HTTP_IN_VIMP__, false, $context);

if($result){
	echo true;
}
?>

## index.html
<!DOCTYPE html>
<html>
<head>
	<title>Pick a color for my light.</title>
	<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
	<script type="text/javascript">
	$(document).ready(function() {
	    $('#submit').click(function () {
	        //start the ajax
	        $.ajax({
	            //this is the php file that processes the data and send mail
	            url: "color.php",

	            //GET method is used
	            type: "GET",

	            //pass the data
	            data: $("#pickColor").serialize(),

	            //Do not cache the page
	            cache: false,

	            //success
	            success: function (html) {
	                //if process.php returned 1/true (send mail success)
	                if (html==1) {
	                //if process.php returned 0/false (send mail failed)
	                } else alert('Sorry, unexpected error. Please try again later.');
	            }

	        });

	        //cancel the submit button default behaviours
	        return false;
	    });
	});
	</script>
</head>
<body>
 	<p>Pick a color
	</p>
	<form id="pickColor" action="color.php" method="post" accept-charset="UTF-8" >
		<input type="color" name="value" value="#000000"/>
		<input type="submit" id="submit" value="set color"/>
	</form>
</body>
</html>
	// BlinkM MaxM controlled by a web form
	// http://thingm.com/products/blinkm-maxm.html
	server.log("BlinkM Started");

	local addr = 0x09;
	local rgb = null;
	local i2cPort = null;

	// Hardware Configuration
	//pin 8 -> SCL -> blinkm c
	//pin 9 -> SDA -> blinkm d
	hardware.configure(I2C_89);
	hardware.i2c89.configure(CLOCK_SPEED_100_KHZ);
	i2cPort = hardware.i2c89;

	// Convert hex string to an integer
	//borrowed from http://devwiki.electricimp.com/doku.php?id=webcolor&s[]=hextointeger
	function hexToInteger(hex)
	{
	//server.log(hex);
	local result = 0;
	local shift = hex.len() * 4;

	// For each digit..
	for(local d=0; d<hex.len(); d++)
	{
	local digit;

	// Convert from ASCII Hex to integer
	if(hex[d] >= 0x61)
	digit = hex[d] - 0x57;
	else if(hex[d] >= 0x41)
	digit = hex[d] - 0x37;
	else
	digit = hex[d] - 0x30;

	// Accumulate digit
	shift -= 4;
	result += digit << shift;
	}

	return result;
	}
	class setRGB extends InputPort {
	function set(col) {
	server.show(col);
	local r = hexToInteger(col.slice(1,3));
	local g = hexToInteger(col.slice(3,5));
	local b = hexToInteger(col.slice(5,7));
	server.log(r+", "+g+", "+b);
	//blinkm: stop script
	i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + "o");
	// "f" -> Set Fade Speed, 1 -> slow, 255 -> instantly
	i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + format("f%c", 10));
	// data c%c%c%c -> "c" + r + g + b
	// "c" -> Fade to RGB Color
	// "n" -> Go to RGB Color Now
	i2cPort.write(0x00, format("%c%c", addr>>8, addr&0xff) + format("c%c%c%c", r, g, b));
	}
	}

	imp.configure("BlinkM", [setRGB()], []);
	<?php

	$postdata = http_build_query(
	array(
	'value' => $_GET['value']
	)
	);

	$opts = array('http' =>
	array(
	'method' => 'POST',
	'header' => 'Content-type: application/x-www-form-urlencoded',
	'content' => $postdata
	)
	);

	$context = stream_context_create($opts);

	$result = file_get_contents(___HTTP_IN_URL__YOU_CAN_FIND_IT_IN_YOUR_HTTP_IN_VIMP__, false, $context);

	if($result){
	echo true;
	}
	?>
	<!DOCTYPE html>
	<html>
	<head>
	<title>Pick a color for my light.</title>
	<meta http-equiv="Content-Type" content="text/html;charset=utf-8">
	<script type="text/javascript" src="http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js"></script>
	<script type="text/javascript">
	$(document).ready(function() {
	$('#submit').click(function () {
	//start the ajax
	$.ajax({
	//this is the php file that processes the data and send mail
	url: "color.php",

	//GET method is used
	type: "GET",

	//pass the data
	data: $("#pickColor").serialize(),

	//Do not cache the page
	cache: false,

	//success
	success: function (html) {
	//if process.php returned 1/true (send mail success)
	if (html==1) {
	//if process.php returned 0/false (send mail failed)
	} else alert('Sorry, unexpected error. Please try again later.');
	}

	});

	//cancel the submit button default behaviours
	return false;
	});
	});
	</script>
	</head>
	<body>
	<p>Pick a color
	</p>
	<form id="pickColor" action="color.php" method="post" accept-charset="UTF-8" >
	<input type="color" name="value" value="#000000"/>
	<input type="submit" id="submit" value="set color"/>
	</form>
	</body>
	</html>