> The LEDs could be red/blue and possible 2 in series, hence the > 5V=20 > requirement. Can they be in parallel ? ----- No virus found in this message. Checked by AVG - www.avg.com Version: 2016.0.7996 / Virus Database: 4749/13769 - Release Date: 01/14/17 --=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 .