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Wiki > Main > LyreProject > LyreLittlePrototype > LyreLittlePrototypeExpansionBoard

We made an expansion board to connect to the development board. The expansion board hold the buttons and the [[http://www.rockbox.org/twiki/bin/view/Main/LyrePrototype#Stereo_Audio_CODEC][stereo codec audio IC]] (with the audio jack output).

Picture:

<img src="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090219-expansion_board-v1.0-500x.jpg">

Schematic:

<a href="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-schematic.png"><img src="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-schematic-400x.jpg"></a>

PCB without planes:

<a href="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-board_without_planes.png"><img src="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-board_without_planes-400x.png"></a>

PCB with planes:

<a href="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-board_with_planes.png"><img src="http://www.rockbox.org/twiki/bin/viewfile/Main/LyreLittlePrototypeExpansionBoard?rev=1;filename=20090209-rockbox_player_little-expansion_board-board_with_planes-400x.png"></a>

I	Attachment	Action	Size	Date	Who
png	20090209-rockbox_player_little-expansion_board-board_with_planes-400x.png	manage	65.0 K	09 Feb 2009 - 13:48	JorgePinto
png	20090209-rockbox_player_little-expansion_board-board_with_planes.png	manage	54.6 K	09 Feb 2009 - 13:48	JorgePinto
png	20090209-rockbox_player_little-expansion_board-board_without_planes-400x.png	manage	61.2 K	09 Feb 2009 - 13:48	JorgePinto
png	20090209-rockbox_player_little-expansion_board-board_without_planes.png	manage	50.9 K	09 Feb 2009 - 13:48	JorgePinto
jpg	20090209-rockbox_player_little-expansion_board-schematic-400x.jpg	manage	23.3 K	09 Feb 2009 - 13:47	JorgePinto
png	20090209-rockbox_player_little-expansion_board-schematic.png	manage	207.1 K	09 Feb 2009 - 13:47	JorgePinto
jpg	20090219-expansion_board-v1.0-500x.jpg	manage	40.4 K	19 Feb 2009 - 19:58	JorgePinto

r5 - 23 Mar 2009 - 08:35:52 - DanielStenberg

Parents: WebHome > LyreProject > LyreLittlePrototype