From 00cc2724f2282aabcbf42b59c1d86a0640663b01 Mon Sep 17 00:00:00 2001 From: Aircoookie Date: Wed, 27 May 2020 15:14:21 +0200 Subject: [PATCH] Updated FAQ (markdown) --- FAQ.md | 2 ++ 1 file changed, 2 insertions(+) diff --git a/FAQ.md b/FAQ.md index 4fc103f..ae6e0f2 100644 --- a/FAQ.md +++ b/FAQ.md @@ -115,6 +115,8 @@ The ESP8266 is a 3.3V microcontroller while the WS2812B LED uses 5V. I have personally got away with this in most cases, but you should technically add a level shifter. A string of WS2811 did not work in one case (pure static white). A possible workaround is chaining a single WS2812B pixel in front and checking "Skip first LED" in the settings. +My recommended levelshifter is the SN74AHCT125N, also used in the QuinLED Dig-Uno board. +If you don't have a level shifter, you can use this creative [workaround](https://hackaday.com/2017/01/20/cheating-at-5v-ws2812-control-to-use-a-3-3v-data-line/). #### Reason 3 Your data line can only be [so long](https://youtu.be/ZFO_QOBG9Bs?t=657). Try out with less or thicker wire between your data pin on your controller and the LED strip, or add (see video) some voltage booster (which can make even 40m data wire length work ;-)).