Project is kinda fun to build and test but my ultimate goal is to make a cool gadget.
I think it would be interesting to people who drink tea on regular basis and who like this type of gadgets.
What can be explored is can I add some temperature sensor and change color according to temperature of the beverage and thus provide information if it is too hot to drink.
Or maybe if some tea of additive like lemon or honey has some specific temperature where is best added to the water.
Someone even suggested adding small buzzer and buzzing some melodies.
Ultimate what it can serve is to see when the beverage is safe to drink, since from what I tested it stops to blink after water drops to below 65 C (150F)
Many options to explore :)