we saw raspberry pi We’ve had hologram projects before, but this is the first time it works as a Christmas tree. This project created by Sean Hodginsuses a Raspberry Pi 4 and relies on the principle of visual acuity persistenceThis principle uses LED strips to “paint” light at a certain speed. Display a custom 3D effect in mid-air using tree rotation. In this case, it resembles a festive holiday evergreen.
This tree is made of metal triangular frame. It is mounted on a larger frame with a motor that can rotate the triangle into a cone at 10 Hz. Trees can display both still and animated images. This allows you to display a simple tree, a cartoon image, or in one demo a burning tree.
Hodgins kindly shared a video showing the construction process of the project. The metal frame was built completely from scratch. Hodgins can be seen cutting metals, fitting them together, and modifying them to come up with the most functional end result.
On top of the metal frame is a motor connected to a slip ring that can power the LED strips while spinning, so you don’t have to worry about tangling wires. Bearings are at the base of the triangular frame to provide support during rotation. The Raspberry Pi 4 drives the operation along with a 12V to 5V buck converter and a fan for the motor. A magnet is attached to the top of the triangular frame that passes through a Hall-effect sensor so the Pi knows exactly when full rotation has been achieved.
If you want to recreate this Raspberry Pi project yourself, check out the video Hodgins shared at: Youtube Be sure to follow him for future updates.