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Updated FAQ #2 (markdown)

Michael Miller
2016-04-06 16:22:17 -07:00
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FAQ-#2.md

@@ -7,3 +7,5 @@ This is due to the IO Pins on the device are 3.3v and the pixels require +-0.5v
3) Lower the running voltage to your pixels to within range of the IO pins. Since the pixels need +-0.5v IO, if the primary voltage of the NeoPixel is 3.8v, then the 3.3v of the IO pin are within spec. Some pixels can run just fine at 3.8v and this is often the lowest rated voltage they can run at. The problem with this solution is how do you provide 3.8v at the current requirements the Pixels run at? You will need to get a variable power module and with a good meter you will need to set the voltage output to 3.8v. A lot more effort than just getting a level shifter.
For this reason I don't suggest this solution except for the bench testing.
Here are some other techniques of which I have never tried but may work in a pinch.
* [Electro Bob WS2812 level translator technique](http://www.electrobob.com/ws2812-level-translator).