(Scientific term: “facial pareidolia”) [Rongzhong Li] built a robot ... his sensor array, he saw the face of a cat looking back at him. This started his years-long Petoi OpenCat project ...

[Ignas] wrote in to tell us about [Berryjam’s] AMAZING write-up on creating an Arduino based laser ... including LIDAR projects. It is very exciting to see such high-end sensors making ...

That makes it ideal for applications like robotics or controlling smart blinds that react to light. With me so far? Here is a list of projects that you can do with an Arduino that are fun ...