Discover how to build a simple DIY projector using everyday materials like cardboard and a small flashlight or laser pointer.

Learn how to make a simple electric doorbell at home in this step-by-step tutorial. Using everyday materials like cardboard, a DC motor, battery, metal bowls, a clothespeg switch, and basic wiring, ...

Learn how a teenager built a six-figure business with 3D printing and low-cost resources in high school.

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 ...