Built entirely from Lego parts, the Bricasso scanned a pre-pixelated source image and saved it to a Lego Mindstorms EV3 unit. The saved data was then used to produce a mosaic using 1 x 1 bricks.
Here’s a fun build from [RootSaid] that is suitable for people just getting started with microcontrollers and robotics — an Arduino-controlled two-wheeled robot. The video assumes you already have one ...