WS2815 - wrong colors

ESPHome
1

Hi,

Few weeks ago i received WS2815 LED and assembled with my Wemos D1 Mini pro. It was working well, but i was checking it “in air”, without 12V to 5V converter and powering my wemos through USB. Now i decided to put it into final destination and power Wemos with Pololu D24V10F5 converter. When i did this it worked, but the colors are wrong… Sometimes it’s pink, blue, pink, blue and so on. When i try to change the color in the HA sometimes it changes, but not for the desired one. What am i missing? Is my converter working bad? Or power source?

Schematic diagram:

connection
connection1266×741 115 KB

My config:

esphome:
  name: wardrobe_binary_sensor_and_led
  platform: ESP8266
  board: d1_mini_pro

wifi:
  ssid: redacted
  password:  redacted

  # Enable fallback hotspot (captive portal) in case wifi connection fails
  ap:
    ssid: "Wardrobe Binary Sensor And Led"
    password:  redacted

captive_portal:

# Enable logging
logger:

# Enable Home Assistant API
api:
  password:  redacted

ota:
  password:  redacted
    
light:
  - platform: fastled_clockless
    chipset: WS2813
    pin: D4
    num_leds: 168
    rgb_order: GRB
    name: "LED w szafie"
2

I’ve corrected the schematic for you. It has some errors. Follow this and it should work.

wireing
wireing667×516 94.7 KB

PS. You might have damaged a component with the previous wiring.

3

I have change it, but it still flickers, sometimes change to wrong color and when i turn it off, first 4 leds remain turned on :confused: do you think that converter might get damaged or wemos?

#Edit
I cheked it with different Wemos powered with usb and common ground and problem still exists… Additionaly, when i change brightness color also changes… Wtf?

#Edit2
Well, i cheked it with different power source and the problem still remains… Maybe its too long data wire?

4

Could be. It’s easy to test that. Just shorten the wire to it minimum to test.

A level shifter should help in ether case.

You can test the stepdown module with a volt meter, if the input voltage is within 9-36v then the output should be 5v. Its good.
Your wemos seems ok as it boots up and you can connect to it.

Esphome has another driver you can try , the neopixelbus driver is for WS2812 led’s as well.

5

Converter is ok - it gives 5V output. I have tested Leds with short data wire (but ground for wemos was still long, i dont know if it matters?), but the problem still exists… I am losing hope… Should level shifter be closer to wemos or closer to LED strip?

6
7

The wemos/esp8266.

The link that Mcarty posted is a excellent source of information, it should not be discounted.

That guide is so good they made a offline version for easy reference. : https://cdn-learn.adafruit.com/downloads/pdf/adafruit-neopixel-uberguide.pdf

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