ESP8266 WS2814 24V lights random color flickering

Issues
1

Hello fellow forum members,

This is my first project with WLED. I got myself WS2814 RGBW strip with WLED on NODEMCU ESP8266 but I can’t get the lights to light up correctly. I keep getting random color flickering.

Setup:
NodeMCU esp 8266 with WLED 0.14.0
BTF-24V-060L-W strip WS2814 RGBW (lights are grouped in of 6 LEDs per channel) not individually controlled.
Logic Shifter

WLED settings:
image

problem:

I cant control the light. They keep flickering different colors.

Things I’ve tryed:
adding 56 ohm resistor (didn’t have 62)
using thicker wire
common Ground
changing settings

2

What level shifter are you using?

How far is the Esp8266 from the first LED?

Any chance you can post a pic or diagram of your wiring?

3

Try configure only 10 led and see how the color behaves
the SK WS2814 need full 5V on Data so try for some tests without the resistor
what version do you use the 14.3 got a better controlling of the SK use this insted of the 14.1 or even the B1 version

4

Sure,
here it is:

circuit
circuit1859×3718 569 KB

I’m using this Logic Level Converter: https://www.aliexpress.com/item/4000077269401.html?spm=a2g0o.order_list.order_list_main.4.76485e5bBqfKzz
the led is directly connected to the board.

5

I tried with and without the resistor.
if I set the number of let to 10 it still behaves wired
if I go above 0.14.0 I have a connection problem to the board. Not sure why.

6

I2C based levelshifters are typically too slow for addressable LEDs.
Get one of the suggested types in the KB: Levelshifters

Preferably one of the 74AHCTxxx based devices.

1 Like
7

Yep as divsys mentioned, you have the wrong level shifter. Once using the right shifter I would test without any resistor. ***If using the (recommended) SN74HCTxxx make sure you also have the 100nF ceramic capacitor as depicted in the examples from divsys’s link.

8

I’ll give it a try.
thanks

9

Thank you