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	<title>Half-Byte &#187; butterfly logger</title>
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		<title>Atmel AVR Butterfly Demo Board</title>
		<link>http://half-byte.com/2010/01/19/atmel-avr-butterfly-demo-board/</link>
		<comments>http://half-byte.com/2010/01/19/atmel-avr-butterfly-demo-board/#comments</comments>
		<pubDate>Tue, 19 Jan 2010 23:21:19 +0000</pubDate>
		<dc:creator>nibble</dc:creator>
				<category><![CDATA[Info]]></category>
		<category><![CDATA[atmega169V]]></category>
		<category><![CDATA[atmel]]></category>
		<category><![CDATA[avr]]></category>
		<category><![CDATA[avr butterfly]]></category>
		<category><![CDATA[butterfly]]></category>
		<category><![CDATA[butterfly logger]]></category>
		<category><![CDATA[buttload]]></category>
		<category><![CDATA[ISP programmer]]></category>
		<category><![CDATA[joystick]]></category>
		<category><![CDATA[ladyada]]></category>
		<category><![CDATA[lcd]]></category>
		<category><![CDATA[logger]]></category>
		<category><![CDATA[USBtinyISP]]></category>

		<guid isPermaLink="false">http://half-byte.com/?p=55</guid>
		<description><![CDATA[<p>I&#8217;m not sure why I haven&#8217;t run across this in the past, but I just saw an AVR demo board called the AVR Butterfly.  It has an LCD, joystick, speaker, temperature sensor, a real-time clock, voltage sensor, and serial port all for an amazing $20 over at Mouser or DigiKey.  The whole package is [...]]]></description>
			<content:encoded><![CDATA[<p><a href="http://half-byte.com/wp-content/uploads/2010/01/avrbutterfly.png"><img class="alignright size-full wp-image-56" style="margin-left: 10px; margin-right: 10px;" title="AVR Butterfly" src="http://half-byte.com/wp-content/uploads/2010/01/avrbutterfly.png" alt="Atmel's AVR Butterfly" width="185" height="126" /></a>I&#8217;m not sure why I haven&#8217;t run across this in the past, but I just saw an AVR demo board called the <a href="http://en.wikipedia.org/wiki/AVR_Butterfly">AVR Butterfly</a>.  It has an LCD, joystick, speaker, temperature sensor, a real-time clock, voltage sensor, and serial port all for an amazing <strong>$20</strong> over at <a title="Mouser" href="http://www.mouser.com/ProductDetail/Atmel/ATAVRBFLY/?qs=2nyfZ6BV3ogEDCCtyuhAHw%3d%3d" target="_blank">Mouser</a> or <a href="http://search.digikey.com/scripts/DkSearch/dksus.dll?KeyWords=atavrbfly" target="_blank">DigiKey</a>.  The whole package is about the size of a name tag and runs on a single button battery.</p>
<p>The Butterfly looks like a prime candidate for a cheap prototype platform (it has an ATmega169V Microcontroller) and diagnostic probe.  Not only that, people have been using it for other projects.  There&#8217;s a low power logger project called <a href="http://www.brokentoaster.com/butterflylogger/index.html" target="_blank">Butterfly Logger</a>.  Another project called <a href="http://www.fourwalledcubicle.com/ButtLoad.php" target="_blank">Buttload</a> uses a Butterfly as an ISP Programmer.  So, instead of spending $22 for <a href="http://www.ladyada.net/make/usbtinyisp/index.html" target="_blank">LadyAda&#8217;s USBtinyISP</a>, you can give <a href="http://www.fourwalledcubicle.com/ButtLoad.php" target="_blank">Buttload</a> a shot since it can be modified to program over USB too.</p>
<p>I need to order one of these soon since I&#8217;m itching to mess with it.</p>
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