@wutu Thank you for your help and patience.
I finally made it today.
Here is my setting for the device:
"brokerId": "192.168.178.22",
"topic": "/ESP_Easy/neo/cmd",
"onMessage": "NeoPixel,5,0,50,0",
"offMessage": "NeoPixel,5,0,0,0",
"echo": {
"additionalNames": []
},
"id": "ws2812",
"name": "ws2812",
"class": "MqttSwitch"
},
And setting the number of LEDs is also important.
Only as many LEDs light up as you have specified.
"Really, I'm not out to destroy Microsoft. That will just be a completely unintentional side effect." 09-28-2003, LINUS TORVALDS (http://www.nytimes.com)