ESP8266 Community Forum

I am using nodemcu v3. Everything works untill I upload examples form fastled library. I have only voltmeter to check it, but whatever pin I set in fastled examples, it gives ~0.7V-1V instead of 3.3. When I make simple sketch, which sets that pin to HIGH it is normall - 3.3. Because of this, I cant light up my leds. I tried powering nodemcu from pc, 2A charger, and psu (from leds). https://ctrlv.cz/shots/2017/05/31/mKhB.png Here is diagram. Because of low voltage, the voltage shifter does not work properly. Thank you.