One other interesting repository of design knowledge: Texas Instruments' reference design catalog.
TI will give you the plans to build all sorts of machines and gizmos using their chips. ATMs, industrial robots, blood oxygen meters, even oscilloscopes - you can find detailed design information (schematics, BOMs, layouts, etc) on TI's website, free of charge.
TI will give you the plans to build all sorts of machines and gizmos using their chips. ATMs, industrial robots, blood oxygen meters, even oscilloscopes - you can find detailed design information (schematics, BOMs, layouts, etc) on TI's website, free of charge.