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.
Alexa controlled timers at a glimpse. A really fancy egg-timer with added temperature control.
An IoT Thing using the Amazon cloud that monitors and reports observed radio frequency spectral power and can be remotely controlled.
For display of the emergency message specially in College, hostel or hospital using SMS or wireless technique.
Have a chat with your favourite person from the past with the Historic Voicebot!
A box full of startup ideas, a new procedurally generated idea is displayed every time it is opened.
Rainbow colorful flashing RGB LEDs; Soldering practice for beginners or electronic hobbyist. Could be a nice present for kids.