Here's a quick and dirty video explaining a few of the different techniques I've used in the past for level shifting.
Better to use buffers if you've got em:
www.adafruit.com/product/757
www.adafruit.com/products/395
or my fav:
www.digikey.com/product-detail...
That MOSFET circuit is used on Sparkfun's level translator board:
www.sparkfun.com/products/12009
Check out my Tindie store (trigBoard is available) www.tindie.com/stores/kdcircu...
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/ kdarrah
Twitter: / kdcircuits
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