Atxmega base

16 07 2011

Connects to 128×64 LCD (sure electronics). Buffered DAC outputs. Some low side mosfets for fan/relay/LCD backlight control.

PCB render:

Schematic:

PDF:  xmega_base.pdf
BOM:  xmega_bom.xls (resistors not included, design not tested)

Main components:

Issues:

  • There is a problem when a 5V LCD is used as xmega i/o is not 5V tolerant. Will need 3k series resistors on pins LCD_D0-7.

#002

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Information

2 responses

27 07 2011
Entropia

Hi. I received two of your boards (#001 and #002) via ITead’s OpenPCB-service. Is there a bill of materials available? This #002 looks like a generic prototyping board for the XMega-series, right? I’d like to assemble and test it out.

28 07 2011
thmpcb

Cool, even before me 🙂

It should be fairly generic. Connectors are a mix of 2mm/0.1″. Also the program header is non-standard but its only 4 pins.

I’ve updated the post with a PDF schematic. I will add a BOM within a day.

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