This Interactive Alexa Raspberry Pi Christmas Tree was built using an Amazon Alexa Dot, Raspberry Pi Zero, and a Neo Pixel LED strip.

“I’ve programmed my custom Alexa Skill to recognize three seasonal phrases and then send a message over MQTT to the Pi. These are defined in speechAssets – part of the Alexa Skill SDK.

Alexa tell Christmas Tree [to] change to red/green/blue
Alexa tell Christmas Tree to turn off
Alexa tell Christmas Tree to set brightness to 60 percent”