Internet of Things Christmas tree uses Alexa and a Raspberry Pi


Alex Ellis has taken a mini Christmas tree, a NeoPixel strip, some jumper wires and an Alexa/Echo Dot and created an Internet of Things device that is sure to get your blinkiness senses going. The Alexa communicates with the Raspberry Pi using MQTT messages. Alex has carefully (by asking Pimoroni!) found out that the Pi can power the NeoPixel strip without an extra power supply, so it’s just hooked up to 5V, GND and pin 18 to provide the PWM signal the strip needs via the UnicornHAT library. It’s a lovely, seasonal project so take a look at Alex’s blog post here and see it in action below:

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