In this video, I'm exploring the use of Mini PIR Sensors with ESP32 with both Arduino-based projects as well as making a movement sensor for Home Assistant by using ESPHome. The sensor is quite ...

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10th March 2026: We checked for new Robox promo codes. Roblox codes are typically a source of fun cosmetics for your character. If you want to make your avatar stand out with a new t-shirt, hat, ...

How often have you pulled out old MCU-based project that still works fine, but you have no idea where the original source ...

Last year, we brought you a story about the BhangmeterV2, an internet-of-things nuclear war monitor. With a cold-war-era ...

Ultrasonics refers to signals that are above the human hearing span (>20 kHz), and usually in the 40- to 70-kHz range. These signals are used like radar—they’re radiated toward a target and reflected ...

Communication-system designers have always had to deal with trade-offs among data reliability, efficient use of available spectrum, data throughput, and cost. Error-correction coding (ECC) is one of ...

Whereas the invariant aspects of a face allow one to recognize who someone is, the changeable aspects of a face can be used to infer information about that person's state of mind. Most face viewing ...

I, someone with no prior programming experience, was able to build a custom website in no time.