for an art-exhibtion I would like to biuld an illuminated arrow. It should run on an UNO, powered by an external power adapter (I think I have to) and be illuminated via LEDs. The arrow will not be higher than 40 cm, so we are talking about a small thing. Just that you know :)
So, has anyone dealt with it before and can share hers/his experience? I would like to switch between "pointing" in something, flashing all LEDs and dim them and quite dont know which hardware would be perfect.
Since I am not the best at the topic I would be happy about any suggestions and tips you can give to me. Also if you have a video to suggest or so :)
Have a great one, Enno