EDIT: Here is the tutorial I used. Another member on here, can't remember who, recommended this one to me.
Last edited by Imperialkid; 03-03-2012 at 12:09 AM. Reason: Added the tutorial I used.
Taking a Hiatus, but still in lurking status ... ;)
Voltage is a difference of electrical potential so if you have one point at -12 and the other at +3.3 then the difference between them is what you would measure - or 15.3v (give or take). If you measure to ground from either supply you would naturally measure the difference between -12 and 0 or 3.3 and 0.
Christmas in San Jose! - WEB - FB - VIDEOS
Halloween in San Jose! - FB
2014 Halloween Show - Homemade tombstones, Grave Crawler, 2x 3-axis skulls, 4x 1-axis skulls, Video Projection (more)
2014 Christmas Show - 5x E681-12, 3x Ren48LSD, 32x42 TLS3001 pixel MT/Star, 4x Rainbow Floods, 12x DIYC Floods, SuperPixelStar, PixaBulb House outline
Ignorance is Temporary - Stupidity is Forever...
Hmmm.. but what of the current if the power supply says...
Does this mean you are actually limited to 2.0A @ 15.3 v??
Standard Disclaimers apply:
"Product may not appear as shown, your mileage may vary, I'm not a doctor nor do I play one on television, these are not the droids you seek"