i2s port expander - http://www.ebay.com/itm/131136966439?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
lcd - http://www.ebay.com/itm/400448319287?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT
5 volts from the power supply will take