Overcurrent relays with inverse definite minimum time (IDMT) characteristics are widely used in power systems to protect ...

Last year, I took a look at some mostly low-cost passive infrared (PIR) motion sensor modules. Then recently, I became more aware of cheap microwave radar motion sensor modules. The popular version of ...

Silver-coated nanopillars selectively bind glucose in sweat, producing measurable light changes. A compact LED and Bluetooth module relay readings to a phone in real time.

In this post we are reviewing the ESP-01 Wi-Fi Relay Module. It is one of the cheapest smart switches you can purchase currently for making smart home, internet of things, and other wireless do it ...

Berlin-based startup Relayr charmed the judges at the Code_n startup competition with its kit for building Internet of Things devices, and walked away with €30,000 (US$32,000). The company was one of ...

Monitoring and control devices have been around for decades in various forms, but they’re use is expanding in homes as well as in building automation for HVAC, fire safety, and lighting. At the heart ...

Why and how indoor air quality is an increasingly important metric. Details of the seven parameters assessed by this all-in-one module. The need for a fan to ensure consistent airflow. Quantitative ...