The Spring Clean competition inspired me me to pull another project off the archive shelf.
It's unlikely to be done for spring, but it doesn't need to be, it's a Halloween project.
In the movie Predator, the alien has a weapons controls panel on his forearm.
I started a project to use a similar forearm mounting for a video screen with an old fashioned green CRT radar display.
First choice was a functional display using a rotating ToF sensor, lidar, or the like. Second choice was just playing a video that looked like radar is working.
The project went dormant because of the cost of lidar sensors, and complexity of the layered animation. Even just getting a video o play had some unexpected costs and complications.
I have the Rpi with a touchscreen, ready to start. I was going to add discrete io around it for effect, maybe even controls for auxiliary equipment to go with the costume. The costume is a grownup Lost in Space Will Robinson, with a plethora of spacey gadgets and gizmos.
I mention the project here to welcome additional ideas for the radar display.