A basic Arduino board adds creativity, flexibility, and interactivity to your home lab. It costs little but opens countless ...

We created a comprehensive ESP32 CAM Telegram bot tutorial that can capture images and record custom-duration AVI videos, which can be stored locally and sent to Telegram for viewing. As you might ...

One of the joys of writing up the entries for the 2025 Component Abuse Challenge has come in finding all the different alternative uses for the humble transistor. This building block of all modern ...

Wearable sweat biosensors enable the non-invasive, real-time monitoring of hormones. Here, we highlight the development and commercialization of a wearable technology that can measure hormone levels ...

We independently review everything we recommend. We may get paid to link out to retailer sites, and when you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath ...

The coldest and hottest places in the world What the Equator is and how it affects temperature What latitude is What height above sea level means How being near the sea affects temperature This ...

Let's talk about that graveyard of old phones you have stashed in a drawer. Instead of letting them collect dust until they become ancient artifacts, it's time to put one of them to work as part of ...