cap of cup with hole

This is a cap of cup(=180ml) with hole. The cup I used is Mcdonald’s small sized paper cup(=80oz)
The purpose of the hole is to connect the color changing lamp of Rose which is operated with Arduino. Or, it can be used for normal purpose of putting a straw.

I made the rose lamp also, showing 3 led colors.
I downloaded the stl file of the rose from thingiverse (thing:212281)

Let’s try it.

Now I’ll want to attach ultrasonic Sensor to see the color changing by distance.