These are some great DIY projects that you can do for cheap.

Our team designed and built a fully functional prototype from the ground up. We handled the firmware, the PCB layout, the 3D ...

Forewarned is forearmed.

This project implements a portable weather station using an Arduino Mega 2560, an ESP32 DevKit, a DHT22 temperature and humidity sensor, a rain sensor (both analog and digital outputs), and an LDR ...

To circumvent that issue, I decided this time to opt for a presence sensor. These use mmWave radar signals instead of ...

In response, utilities like Salt River Project have dedicated lots of funds, as well as entire departments, to wildfire ...

The device, which pulls moisture from the atmosphere to form its electrolyte, could power wearable health monitors ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Kathryn Rath Kathryn Rath is a writer covering audio, video, and smart-home ...

Broadband thermal radiation inevitably limits the performance of room-temperature infrared detectors. Here, the authors demonstrate an in-sensor background-offset cancellation mechanism enabled by ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Thom Dunn Thom Dunn is a writer focusing on home heating and cooling. He once ...

Mercey Livingston is a health and wellness writer and certified Integrative Nutrition Health Coach. She's written about fitness and wellness for Well+Good, Women's Health, Business Insider, and ...

Compared to the Arduino Uno of old, modern microcontrollers are absolutely tiny — especially for the amount of processing power and I/O you get. But if you need something really small, like ...