Control NeoPixel Ring with ESP32

ESPHome
,
1

I’m trying to control a NeoPixel Ring (Link) containing 16 x 5050 RGBW LEDs.

I assumed that I would be able to by using an ESP32 programmed with ESPHome.
After connecting the NeoPixel ring to the appropriate ESP32 pinouts (Gnd, 5+ and GPIO22) I tried the following code within ESPHome but it’s not working at all:

light:
- platform: neopixelbus
  type: RGBW
  variant: SK6812
  pin: GPIO22
  num_leds: 16
  name: "NeoPixel Light"

I’ve also tried an alternative variant (WS2812). Again without any noticeable control - not even the on/off action.

I’d really appreciate any help to fully control the NeoPixel ring.

2

Logs please

3

As requested here is the ESPHome log:

INFO Reading configuration /config/esphome/neo.yaml...
INFO Starting log output from neo.local using esphome API
INFO Successfully connected to neo.local
[10:52:58][I][app:102]: ESPHome version 2022.10.0 compiled on Oct 21 2022, 19:49:55
[10:52:58][C][wifi:502]: WiFi:
[10:52:58][C][wifi:360]:   Local MAC: 40:91:51:9B:3E:60
[10:52:58][C][wifi:361]:   SSID: 'NoT'[redacted]
[10:52:58][C][wifi:362]:   IP Address: 192.168.20.21
[10:52:58][C][wifi:364]:   BSSID: F6:9F:C2:AA:66:4D[redacted]
[10:52:58][C][wifi:365]:   Hostname: 'neo'
[10:52:58][C][wifi:367]:   Signal strength: -72 dB ▂▄▆█
[10:52:58][C][wifi:371]:   Channel: 6
[10:52:58][C][wifi:372]:   Subnet: 255.255.255.0
[10:52:58][C][wifi:373]:   Gateway: 192.168.20.1
[10:52:58][C][wifi:374]:   DNS1: 1.1.1.1
[10:52:58][C][wifi:375]:   DNS2: 8.8.8.8
[10:52:58][C][logger:275]: Logger:
[10:52:58][C][logger:276]:   Level: DEBUG
[10:52:58][C][logger:277]:   Log Baud Rate: 115200
[10:52:58][C][logger:278]:   Hardware UART: UART0
[10:52:58][C][light:104]: Light 'NeoPixel Light'
[10:52:58][C][light:106]:   Default Transition Length: 1.0s
[10:52:58][C][light:107]:   Gamma Correct: 2.80
[10:52:58][C][captive_portal:088]: Captive Portal:
[10:52:58][C][mdns:100]: mDNS:
[10:52:58][C][mdns:101]:   Hostname: neo
[10:52:58][C][ota:089]: Over-The-Air Updates:
[10:52:59][C][ota:090]:   Address: neo.local:3232
[10:52:59][C][ota:093]:   Using Password.
[10:52:59][W][ota:099]: Last Boot was an unhandled reset, will proceed to safe mode in 8 restarts
[10:52:59][C][api:138]: API Server:
[10:52:59][C][api:139]:   Address: neo.local:6053
[10:52:59][C][api:141]:   Using noise encryption: YES
4

Try

    type: GRB
    variant: WS2811
5

Hi,
Thanks for your suggestion.
These settings result in one white LED & one persistently green despite changing the colour palette. Neither LED could be switched off via the ESPHome settings.
The logs are:

INFO Reading configuration /config/esphome/neo.yaml...
INFO Starting log output from neo.local using esphome API
INFO Successfully connected to neo.local
[22:21:51][I][app:102]: ESPHome version 2022.10.0 compiled on Oct 23 2022, 22:12:48
[22:21:51][C][wifi:502]: WiFi:
[22:21:51][C][wifi:360]:   Local MAC: 40:91:51:9B:3E:60
[22:21:51][C][wifi:361]:   SSID: 'NoT'[redacted]
[22:21:51][C][wifi:362]:   IP Address: 192.168.20.21
[22:21:51][C][wifi:364]:   BSSID: 7E:8A:20:81:FD:D7[redacted]
[22:21:51][C][wifi:365]:   Hostname: 'neo'
[22:21:51][C][wifi:367]:   Signal strength: -54 dB ▂▄▆█
[22:21:51][C][wifi:371]:   Channel: 11
[22:21:51][C][wifi:372]:   Subnet: 255.255.255.0
[22:21:51][C][wifi:373]:   Gateway: 192.168.20.1
[22:21:51][C][wifi:374]:   DNS1: 1.1.1.1
[22:21:51][C][wifi:375]:   DNS2: 8.8.8.8
[22:21:51][C][logger:275]: Logger:
[22:21:51][C][logger:276]:   Level: DEBUG
[22:21:51][C][logger:277]:   Log Baud Rate: 115200
[22:21:51][C][logger:278]:   Hardware UART: UART0
[22:21:51][C][light:104]: Light 'NeoPixel Light'
[22:21:51][C][light:106]:   Default Transition Length: 1.0s
[22:21:51][C][light:107]:   Gamma Correct: 2.80
[22:21:51][C][captive_portal:088]: Captive Portal:
[22:21:51][C][mdns:100]: mDNS:
[22:21:51][C][mdns:101]:   Hostname: neo
[22:21:51][C][ota:089]: Over-The-Air Updates:
[22:21:51][C][ota:090]:   Address: neo.local:3232
[22:21:51][C][ota:093]:   Using Password.
[22:21:51][C][api:138]: API Server:
[22:21:51][C][api:139]:   Address: neo.local:6053
[22:21:51][C][api:141]:   Using noise encryption: YES
6

The docs on the web page say they are rgbw and either WS2812B or SK6812. Looking at the esphome docs, maybe WS2812X is the right one?

7

Thanks for this suggestion. You are correct that the NeoPixels are RGBW - hence my original type & variant choices.
I have just tried changing the variant to WS2812X - the result being a single white LED permanently on.

I’m beginning to think either an ESP32 isn’t capable of controlling these NeoPixels (Signal timing requirements?) or there is something wrong with the device.

8

You could always flash WLED to test.

9

Thanks Nick.
I’ve also tried WLED & all the obvious settings - again with no success so I’m now taking the problem up with the supplier.

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