TLP2345 4路步进电机拓展板PDF原理图+AD集成封装库: Library Component Count : 12 Name Description ---------------------------------------------------------------------------------------------------- Cap Capacitor HOLE Header 12X2 Header, 12-Pin, Dual row Header 2 Header, 2-Pin Header 3X2 Header, 3-Pin, Dual row Header 6 Header, 6-Pin LED PR9 Optoisolator PC817 Res1 Resistor SW DIP-12 DIP Switch TLP2345 TLP2345