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<?xml version="1.0" encoding="utf-8"?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Strict//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-strict.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" lang="en">
<head>
<title>BeagleBone 101</title>
<link rel="stylesheet" type="text/css" media="screen, projection, print" href="slidy.css" />
<script src="client.js" charset="utf-8" type="text/javascript"></script>
<link rel="stylesheet" type="text/css" media="screen, projection, print" href="oscon.css" />
<script src="slidy.js" charset="utf-8" type="text/javascript"></script>
<link rel="icon" href="favicon.ico" type="image/x-icon" />
<link rel="shortcut icon" href="favicon.ico" type="image/x-icon" />
<meta name="duration" content="40" />
</head>
<body>
<div class="background">
<img id="background" src="speaker.005.png" height="98%" width="100%" />
<img id="head-logo" title="beagleboard logo" alt="beagleboard logo" src="beagle.png" />
</div>
<div class="background cover">
<img id="title-background" src="speaker.001.png" height="98%" width="100%" />
<img id="head-logo2" title="beagleboard logo" alt="beagleboard logo" src="beagle.png" />
</div>
<div class="slide cover title">
<h1><u>Bonescript</u></h1>
<h2 style="margin-left: 1em;">Simplified Physical Computing with Node.JS</h2>
<p>
Thursday, July 19, 2012<br />
5:00PM, Open Hardware, D137
</p>
<img src="7410840420_c2dd73d2b0_c.jpg" height="25%" style="margin-left: 1em;" />
<p>Jason Kridner<br />
Software Architecture and Community Development Manager<br />
Sitara ARM Processors<br />
Texas Instruments<br />
jkridner@beagleboard.org or jdk@ti.com
</p>
</div>
<div class="slide">
<h1>BeagleBoard.org is open access to ARM processors</h1>
<h2><a href="http://beagleboard.org/static/flyer_latest.pdf">http://beagleboard.org/static/flyer_latest.pdf</a></h2>
<p>BeagleBoard.org is an open hardware project leveling access to low-power mobile processing</p>
<table>
<tr>
<td><b>BeagleBoard-xM:</b> Open software desktop experience with extra MHz and extra memory</td>
<td><b>BeagleBone:</b> Hardware I/O focus with single cable development experience</td>
</tr>
<tr>
<td>
<a href="http://www.flickr.com/photos/jadon/4644436246/" title="BeagleBoard-xM_hand_shot by jadonk, on Flickr">
<img src="http://farm5.staticflickr.com/4016/4644436246_459bcc0696_z.jpg" width="90%" alt="BeagleBoard-xM_hand_shot" />
</a>
</td>
<td>
<a href="http://www.flickr.com/photos/adafruit/6800874202/" title="Beagle Bone A5 + Extras - Rev. A5 by adafruit, on Flickr">
<img src="http://farm8.staticflickr.com/7044/6800874202_cc3c69b2fe_z.jpg" width="100%" alt="Beagle Bone A5 + Extras - Rev. A5" />
</a>
</td>
</tr>
</table>
</div>
<div class="slide">
<h1>Arduino reignites electronics interest for non-experts</h1>
<h2>Not the original BeagleBoard inspiration, but should it have been?</h2>
<a href="http://www.flickr.com/photos/snootlab/6052455554/" title="Arduino Uno by Snootlab, on Flickr">
<img align="right" src="http://farm7.staticflickr.com/6209/6052455554_a4301347ef_z.jpg" width="640" height="427" alt="Arduino Uno" />
</a>
<ul>
<li>Removes cognitive barriers to demonstrating hardware interactions<ul>
<li>Avoids C++ boilerplate such as "int main(int argc, char* argv) ..."</li>
<li>Eliminates manual linking to libraries</li>
</ul></li>
<li>Derived from Processing and then Wiring</li>
<li>Minimal time to Hello-World-for-hardware: toggling of LED</li>
<li>Lots of examples on interfacing</li>
<li>Hundreds of "shields", breakout-boards and tools like Fritzing enable step-by-step examples</li>
</ul>
</div>
<div class="slide">
<h1>BeagleBone: open hardware expandable computer</h1>
<h2>Latest ARM open source focused on easy hardware experimentation</h2>
<ul>
<li>Ships ready to use<ul>
<li>Angstrom Distribution with C++, Perl, Python, ...</li>
<li>Built-in USB-to-serial adapter with JTAG and device access</li>
<li>Linux drivers support countless USB peripherals</li>
</ul></li>
<li>Open source means options<ul>
<li>Texas Instruments releases:
<a href="http://processors.wiki.ti.com/index.php/BeagleBone-Android-DevKit_Guide">
Android 4.0</a>,
<a href="http://software-dl.ti.com/dsps/dsps_public_sw/am_bu/sdk/AM335xSDK/latest/index_FDS.html">
Linux</a>,
<a href="http://processors.wiki.ti.com/index.php/StarterWare">
StarterWare (no OS)</a>
</li>
<li>Linux:
<a href="http://beagleboard.org/angstrom">Angstrom</a>,
<a href="http://elinux.org/BeagleBoardUbuntu">Ubuntu</a>,
<a href="http://wiki.debian.org/InstallingDebianOn/TI/BeagleBone">Debian</a>,
<a href="http://archlinuxarm.org/platforms/armv7/beaglebone">ArchLinux</a>,
<a href="http://dev.gentoo.org/~armin76/arm/beaglebone/install.xml">Gentoo</a>,
<a href="http://wiki.sabayon.org/index.php?title=Hitchhikers_Guide_to_the_BeagleBone_(and_ARMv7a)">
Sabayon</a>,
<a href="http://www.zoobab.com/beaglebone">Buildroot</a>,
<a href="http://nerves-project.org/">Erlang</a>,
<a href="http://elinux.org/BeagleBoardFedora">Fedora,</a>
<a href="http://www.timesys.com/embedded-linux/resources/dev-center/am335x">TimeSys</a>
</li>
<li>Other:
<a href="http://community.qnx.com/sf/wiki/do/viewPage/projects.bsp/wiki/TiAm335Beaglebone">QNX Neutrino</a>,
<a href="http://people.freebsd.org/~dmarion/beaglebone/creating_bootable_sd_card/">FreeBSD</a>
</li>
</ul></li>
<img align="right" src="imager.png" width="30%" />
<li>SD card images like get-out-of-jail-free card
<pre>xzcat XXX.img.xz | sudo dd of=/dev/sdX</pre>
<ul>
<li>Can be used just as easily for backups</li>
<li>Booted from device ROM, so you can't "brick" it</li>
</ul>
</li>
</ul>
</div>
<div class="slide">
<h1>BeagleBone hardware details</h1>
<h2><a href="http://beagleboard.org/bone">http://beagleboard.org/bone</a></h2>
<img src="bone_connectors.jpg" alt="BeagleBone image" align="right" width="70%" height="70%" />
<ul>
<li>Processor<ul>
<li>720MHz super-scalar ARM Cortex-A8</li>
<li>armv7 and NEON SIMD instructions</li>
<li>3D graphics accelerator</li>
</ul></li>
<li>Connectivity<ul>
<li>USB client: power, debug and device</li>
<li>USB host, Ethernet</li>
<li>2x46 pin headers<ul>
<li>7xADC, 66xGPIO</li>
<li>2xI2C, 5xUART, SPI, CAN, 8xPWM</li>
<li>LCD, parallel, MMC/SDIO</li>
</ul></li>
</ul></li>
<li>Software<ul>
<li>4GB microSD card with Angstrom Distribution</li>
</ul></li>
</ul>
</div>
<div class="slide">
<h1>Bonescript is attempt to collaboratively deliver a teaching system useful for integrating systems and building physically instrumented web services</h1>
<li>JavaScript is language of web and first logical choice for new programmers</li>
<li>HTML5 and libraries provides rapid prototyping of GUIs and ability to access remotely</li>
<li>NodeJS avoids delays waiting on physical I/O</li>
</div>
<div class="slide">
<h1>Bonescript follows Processing/Arduino model of using setup/loop functions<h1>
</div>
<div class="slide">
<h1>Bonescript adds addLoop function and multiple loops<h1>
</div>
<div class="slide">
<h1>Bonescript enables low-level physical access to GPIOs via digitalInput/digtalOutput<h1>
</div>
<div class="slide">
<h1>Analog signals can be input and generated via analogInput/analogOutput<h1>
</div>
<div class="slide">
<h1>Cloud9 experience<h1>
</div>
<div class="slide">
<h1>The event-driven model of Node.JS’s JavaScript implementation provides an optimized approach to handling embedded I/O</h1>
<li>JavaScript is the programming language of the web and a logical first choice for new programmers</li>
<li>By providing the development environment over the web using Cloud9 IDE</li>
<li>familiarity is maintained from top to bottom building on the same technology and language</li>
<li>Additionally, lengthy download and installation of tools is not required</li>
<li>nor any permission to alter a computer host that is often used for more passive experiences such as browsing the Internet</li>
<li>Avoiding any surprises is a critical aspect of building a platform for inexperienced users</li>
<li>the universality of JavaScript provides new opportunities to avoid such surprises or delays to success</li>
<li>When a sensor provides data, JavaScript closure functions provide an easy-to-use mechanism to efficiently</li>
<li>responsively update a web-based user interface providing visualizations of the data</li>
</div>
<div class="slide">
<h1>Turn on an LED (on-board)</h1>
<h2>The "hello world" of hardware</h2>
<p>The links below are live and will impact the USR3 LED on your BeagleBone. The exact code used
in the browser is below and will send messages to your board using <a href="http://socket.io/">
Socket.IO</a>.</p>
<p>Set pin high: <span class="dynlink" onclick="eval(document.getElementById('led1').innerHTML)">
run</span></p>
<pre id="led1">
pinMode(bone.USR3, 'out');
digitalWrite(bone.USR3, 1);</pre>
<p>Set pin low: <span class="dynlink" onclick="eval(document.getElementById('led2').innerHTML)">
run</span></p>
<pre id="led2">
digitalWrite(bone.USR3, 0);</pre>
</div>
<div class="slide">
<h1>addLoop/getLoops/removeLoop</h1>
<h2>Run something repeatedly</h2>
<p>Blink USR3 LED: <span class="dynlink" onclick="eval(document.getElementById('addLoop1').innerHTML)">
run</span></p>
<pre id="addLoop1">
pinMode(bone.USR3, 'out');
addLoop(function() {
digitalWrite(bone.USR3, 1);
delay(100);
digitalWrite(bone.USR3, 0);
delay(100);
});</pre>
<p>Halt all loops: <span class="dynlink" onclick="eval(document.getElementById('addLoop2').innerHTML)">
run</span></p>
<pre id="addLoop2">
getLoops(function(x) {
for(var loop in x.loops) {
removeLoop(loop);
}
});</pre>
</div>
<div class="slide">
<h1>setInterval/clearInterval</h1>
<h2>Run something repeatedly without invoking a process</h2>
<p>Blink USR3 LED: <span class="dynlink" onclick="eval(document.getElementById('setInterval1').innerHTML)">
run</span></p>
<pre id="setInterval1">
value = 0;
pinMode(bone.USR3, 'out');
interval = setInterval(function() {
value = value ? 0 : 1;
digitalWrite(bone.USR3, value);
}, 100);</pre>
<p>Halt function: <span class="dynlink" onclick="eval(document.getElementById('setInterval2').innerHTML)">
run</span></p>
<pre id="setInterval2">
clearInterval(interval);</pre>
</div>
<div class="slide">
<h1>attachInterrupt/detachInterrupt</h1>
<h2>Detect input changes</h2>
<p>Please connect P8-3 to P8-5 with a 1khom resistor</p>
<p>Attach interrupt: <span class="dynlink" onclick="eval(document.getElementById('attachInterrupt1').innerHTML)">
run</span></p>
<pre id="attachInterrupt1">
pinMode(bone.P8_5, 'in');
pinMode(bone.P8_3, 'out');
value = 0;
digitalWrite(bone.P8_3, value);
attachInterrupt(bone.P8_5, function(x) {
digitalWrite(bone.USR3, x.value);
}, 'both', doAlert);</pre>
<p>Toggle P8-3: <span class="dynlink" onclick="eval(document.getElementById('attachInterrupt2').innerHTML)">
run</span></p>
<pre id="attachInterrupt2">
interval2 = setInterval(function() {
value = value ? 0 : 1;
digitalWrite(bone.P8_3, value);
}, 1000);</pre>
<p>Read P8-5: <span class="dynlink" onclick="eval(document.getElementById('attachInterrupt3').innerHTML)">
run</span></p>
<pre id="attachInterrupt3">
digitalRead(bone.P8_5, function(x){alert(x.value);});</pre>
<p>Halt function: <span class="dynlink" onclick="eval(document.getElementById('attachInterrupt4').innerHTML)">
run</span></p>
<pre id="attachInterrupt4">
clearInterval(interval2);
detachInterrupt(bone.P8_5, doAlert);</pre>
</div>
<div class="slide">
<h1>Services running on the BeagleBone</h1>
<h2>Default web services ready for you to try</h2>
<img align="right" src="beaglebone_small.png" height="400px" />
<p>The interactivity presented on the previous slide is provided through a set of services
running on your BeagleBone. You can experiment with some of these services below. The
immediately following slides will provide you with some dynamic information about your
BeagleBone.</p>
<ul>
<li>
<span class='dynlink' onclick='location.href="http://"+window.location.hostname+":3000"'>
Cloud9 IDE</span>
<ul><li>Write applications directly in the browser</li></ul>
</li>
<li>
<span class='dynlink' onclick='location.href="https://"+window.location.hostname'>
Gate One</span>
<ul><li>Execute ssh (terminal) directly in the browser</li></ul>
</li>
<li><a href="/js_term.html">JavaScript terminal <small>(bone101)</small></a>
<ul><li>Interactively execute JavaScript in the browser</li></ul>
</li>
<li><a href="/shell.html">Shell <small>(bone101)</small></a>
<ul><li>Issue commands to bash using JQuery Terminal</li></ul>
</li>
</ul>
</div>
<div class="slide">
<h1>Attached capes</h1>
<h2>Any attached capes with ID EEPROMs would be listed here</h2>
<div id="eeprom"></div>
<div class="capesvg"><div id="cape54"></div></div>
<div class="capesvg"><div id="cape55"></div></div>
<div class="capesvg"><div id="cape56"></div></div>
<div class="capesvg"><div id="cape57"></div></div>
</div>
<div class="slide">
<h1>Expansion header state</h1>
<center><table class="pinmux">
<thead>
<tr><td></td><td colspan="2">P9</td><td></td><td></td><td></td><td colspan="2">P8</td><td></td></tr>
<tr><td></td><td>1</td><td>2</td><td></td><td></td><td></td><td>1</td><td>2</td><td></td></tr>
</thead>
<tfoot>
<tr><td></td><td>45</td><td>46</td><td></td><td></td><td></td><td>45</td><td>46</td><td></td></tr>
</tfoot>
<tr><td id='P9_1_name'></td><td id='P9_1' class='pin'></td><td id='P9_2' class='pin'></td><td id='P9_2_name'></td>
<td class='spacer'></td>
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<td id='P8_25_name'></td><td id='P8_25' class='pin'></td><td id='P8_26' class='pin'></td><td id='P8_26_name'></td></tr>
<tr><td id='P9_27_name'></td><td id='P9_27' class='pin'></td><td id='P9_28' class='pin'></td><td id='P9_28_name'></td>
<td class='spacer'></td>
<td id='P8_27_name'></td><td id='P8_27' class='pin'></td><td id='P8_28' class='pin'></td><td id='P8_28_name'></td></tr>
<tr><td id='P9_29_name'></td><td id='P9_29' class='pin'></td><td id='P9_30' class='pin'></td><td id='P9_30_name'></td>
<td class='spacer'></td>
<td id='P8_29_name'></td><td id='P8_29' class='pin'></td><td id='P8_30' class='pin'></td><td id='P8_30_name'></td></tr>
<tr><td id='P9_31_name'></td><td id='P9_31' class='pin'></td><td id='P9_32' class='pin'></td><td id='P9_32_name'></td>
<td class='spacer'></td>
<td id='P8_31_name'></td><td id='P8_31' class='pin'></td><td id='P8_32' class='pin'></td><td id='P8_32_name'></td></tr>
<tr><td id='P9_33_name'></td><td id='P9_33' class='pin'></td><td id='P9_34' class='pin'></td><td id='P9_34_name'></td>
<td class='spacer'></td>
<td id='P8_33_name'></td><td id='P8_33' class='pin'></td><td id='P8_34' class='pin'></td><td id='P8_34_name'></td></tr>
<tr><td id='P9_35_name'></td><td id='P9_35' class='pin'></td><td id='P9_36' class='pin'></td><td id='P9_36_name'></td>
<td class='spacer'></td>
<td id='P8_35_name'></td><td id='P8_35' class='pin'></td><td id='P8_36' class='pin'></td><td id='P8_36_name'></td></tr>
<tr><td id='P9_37_name'></td><td id='P9_37' class='pin'></td><td id='P9_38' class='pin'></td><td id='P9_38_name'></td>
<td class='spacer'></td>
<td id='P8_37_name'></td><td id='P8_37' class='pin'></td><td id='P8_38' class='pin'></td><td id='P8_38_name'></td></tr>
<tr><td id='P9_39_name'></td><td id='P9_39' class='pin'></td><td id='P9_40' class='pin'></td><td id='P9_40_name'></td>
<td class='spacer'></td>
<td id='P8_39_name'></td><td id='P8_39' class='pin'></td><td id='P8_40' class='pin'></td><td id='P8_40_name'></td></tr>
<tr><td id='P9_41_name'></td><td id='P9_41' class='pin'></td><td id='P9_42' class='pin'></td><td id='P9_42_name'></td>
<td class='spacer'></td>
<td id='P8_41_name'></td><td id='P8_41' class='pin'></td><td id='P8_42' class='pin'></td><td id='P8_42_name'></td></tr>
<tr><td id='P9_43_name'></td><td id='P9_43' class='pin'></td><td id='P9_44' class='pin'></td><td id='P9_44_name'></td>
<td class='spacer'></td>
<td id='P8_43_name'></td><td id='P8_43' class='pin'></td><td id='P8_44' class='pin'></td><td id='P8_44_name'></td></tr>
<tr><td id='P9_45_name'></td><td id='P9_45' class='pin'></td><td id='P9_46' class='pin'></td><td id='P9_46_name'></td>
<td class='spacer'></td>
<td id='P8_45_name'></td><td id='P8_45' class='pin'></td><td id='P8_46' class='pin'></td><td id='P8_46_name'></td></tr>
</table></center>
</div>
<div class="slide">
<h1>Blinking an LED (external)</h1>
<h2>The "hello world" of hardware</h2>
<embed src="blinkled.svg" align="right" />
<ul>
<li>Connect resistor lead to P8_1 (GND)</li>
<li>Connect other lead to short LED lead</li>
<li>Connect long LED lead to P8_3</li>
<li>Launch the
<span class='dynlink' onclick='location.href="http://"+window.location.hostname+":3000"'>
Cloud9 IDE</span>
</li>
<li>Run the 'blinkled.js' application</li>
</ul>
</div>
<div class="slide">
<h1>Giving back!</h1>
<h2><a href="http://github.com/jadonk/bonescript">
http://github.com/jadonk/bonescript
</a></h2>
<ul>
<li>There's more to come. Please join me in improving this project for the
benefit of both yourself and others.</li>
<li>Pull down the latest using git
<pre>
cd /var/lib/cloud9
git pull origin master</pre>
</li>
<li>File bug reports via the github interface</li>
<li>License is MIT-like with contributions welcome</li>
</ul>
</div>
</body>
</html>