You can set a message on a dot matrix display by Alexa!
This is a working display based on Star Trek TNG. Uses APIs and sensors for weather, VOCs, power measurement, calendar, fitness, and news.
This uses AMG8833 and HC-SR04 to measure temperature and give an output to Alexa, AWS DynamoDB, 1.44" TFT and LCD with a NodeMcu.
Have a chat with your favourite person from the past with the Historic Voicebot!