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	<title>Processing &#8211; semifluid.com</title>
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	<description>Intermediate in flow properties between solids and liquids; highly viscous.</description>
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		<title>8&#215;8 RGB LED Display</title>
		<link>/2010/06/28/8x8-rgb-led-display/</link>
		
		<dc:creator><![CDATA[Steven A. Cholewiak]]></dc:creator>
		<pubDate>Tue, 29 Jun 2010 02:21:23 +0000</pubDate>
				<category><![CDATA[C Projects]]></category>
		<category><![CDATA[Electronics]]></category>
		<category><![CDATA[LEDs]]></category>
		<category><![CDATA[PIC Projects]]></category>
		<category><![CDATA[PIC16F628]]></category>
		<category><![CDATA[Controller]]></category>
		<category><![CDATA[LED]]></category>
		<category><![CDATA[Processing]]></category>
		<category><![CDATA[RGB]]></category>
		<guid isPermaLink="false">/?p=213</guid>

					<description><![CDATA[So, this project was sidelined until I had to make another BatchPCB purchase.  Thankfully it wasn&#8217;t too long until I had the opportunity to work on it again! The current setup is basically 4 of the original 4 RGB LED Controller boards and 12 of the updated DR1r3 boards. All 16 are wired in parallel [&#8230;]]]></description>
										<content:encoded><![CDATA[<p style="text-align: left;">So, this project was sidelined until I had to make another BatchPCB purchase.  Thankfully it wasn&#8217;t too long until I had the opportunity to work on it again!  The current setup is basically 4 of the <a href="http://semifluid.com/2009/01/06/pic16f628-4-rgb-led-pwm-controller/">original 4 RGB LED Controller boards</a> and 12 of the <a href="http://semifluid.com/2010/02/16/4-rgb-led-controller-update/">updated DR1r3 boards</a>.  All 16 are wired in parallel and being controlled by my desktop machine.  You can see an extended version of this RGB test sequence after the break and I&#8217;m also including the (uncommented, sorry!) <a href="http://processing.org/" target="_blank">Processing 1.1</a> code that I used to control the boards.</p>
<p><center><br />
<iframe title="8x8 RGB LED Display - Closeup" width="648" height="486" src="https://www.youtube.com/embed/ImFNgAgYKUY?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe><br />
</center></p>
<p><span id="more-213"></span></p>
<p>Here&#8217;s an extended cut of the video display (which is displaying an RGB Test Sequence).  Note that the current maximum throughput is approximately 12-13 frames per second due to the RS-232 baud rate bottleneck, but I&#8217;m looking for ways to speed up the data transfer without requiring a faster oscillator.:</p>
<p><center><br />
<iframe title="8x8 RGB LED Display" width="648" height="486" src="https://www.youtube.com/embed/gtfMJSERY3o?feature=oembed" frameborder="0" allow="accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share" referrerpolicy="strict-origin-when-cross-origin" allowfullscreen></iframe><br />
</center></p>
<p>The <a href="http://processing.org/" target="_blank">Processing 1.1</a> code:<br />
<a href="/wp-content/uploads/2010/06/VideoDisplay.zip">VideoDisplay</a> (includes the .pde file and the video used)</p>
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