Building a Nightmare Robot for Halloween! It was designed initially to hide under piles of clothes, but I'm a big fan of the Minecraft spider costume. It uses similar concepts that some satellites use to find the sun, to find a light source, but janky-er. It does this with an Arduino, four photoresistors to find the direction of light being shined on it, and then uses stepper motors to move around and generally be spooky.

Parts list(idk how to compress URLs)-

STL files: https://www.thingiverse.com/thing:463...

Stepper Motors: https://www.amazon.com/STEPPERONLINE-...

Motor Drivers: https://www.amazon.com/DRV8825-Steppe...

LDRs: https://www.amazon.com/gp/product/B01...

Arduino Code(it’s messy but you’ll get the gist): https://create.arduino.cc/editor/only...