On 15/01/2017 10:58 AM, IVP wrote: >>> Can they be in parallel ? >> They possibly could, but that doubles the current draw. > So can you add R to reduce the brightness to serial level or double > up each (eg PIC) pin ? I could but the Microchip S/R makes for a nice expandable design. David... --=20 http://www.piclist.com/techref/piclist PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist .