In this video I'm building an Arduino Heart Rate Monitor that is housed in a toy handle in the style of the Star Trek Tricoder. The device uses the PulseSensor with an Arduino Pro Mini and an OLED ...

Smart garage door openers offer many benefits, but installation can be tough. This picks make it a cinch to add voice and ...

Check out the latest stories, videos, and podcasts from the week of Mar. 9, 2026. Andy’s back from the 2026 Analog Aficionados meetup, held at DesignCon this year, and pieces together some history of ...

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, ...

There’s a well-known movie trope in which a hacker takes control of the traffic lights in a city, causing general mayhem or ...

How to Get the Most From Google Gemini: 14 Tips You'll Actually Use Gemini can answer questions, provide information, generate content, and integrate with other Google apps and services.