Eye of Tianjin Ferris Wheel Photoelectric Version (Luminous, Rotating)

“The Eye of Tianjin” is a landmark in Tianjin and the world's only Ferris wheel built over a river.

Just in time for the 2025 SCO Summit, here's a miniature home decoration to add to the excitement.

Divided into six plates for printing, you can design your own color scheme, size is marked in the pictures above, part size is at the limit for P series, A1 mini is not applicable.

After assembly, without installing electronic components, it can be used as a static display piece.

Installing electronic components enables rotation + lighting effects.

[Button not pressed: Hour hand speed rotation + warm yellow light effect (6.7% brightness)]
[Button pressed: Fast rotation + warm yellow light effect (high brightness)]
[Person detected: Fast rotation for at least 10 seconds + rainbow light effect]

[If you wish, you can set the rotation speed to that of an hour hand; I designed 12 small seats on my wheel, so you can use it as a clock]

All electronic components are standard off-the-shelf parts; installation video tutorial, BOM list, and Arduino code are provided below.

Hands-on challenge 5 stars. Prepare your own tools such as soldering iron, heat shrink tubing, etc.

Have fun! Don't forget to boost me~