audiophile preamp + i/o selector (LCD, IR, relays)

Forum 2005-2010 (read only) General Exhibition
6

http://www.amb.org/audio/delta1

http://www.amb.org/audio/delta2

http://www.head-fi.org/forum/thread/447607/the-lcduino-1-i-o-processor/330#post_6477792

that should have the schematics for the relay modules and their controllers.