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About Test and Measurement

Before smart cameras, wireless sensors, and connected security systems became commonplace, protecting a room could be as simple as a laser b...

In industrial automation and other fields, sensors, actuators, and control systems from different manufacturers must communicate seamlessly....

Can an ESP32 detect people without cameras or motion sensors? Discover how Wi-Fi signal disturbances, CSI, and smart DSP enable real-time oc...

A handful of CMOS logic chips is all it takes to build this versatile warning alarm. Discover a classic 1980 Elektor design that monitors se...

Related tag Test and Measurement

| Can a handful of transistors outperform a microcontroller? This acoustic sensor delivers reliable, fail-safe sound detection and shows how e...

| Learn how to build AI powered mobile apps and IoT projects with MIT App Inventor, Raspberry Pi, Arduino, and ESP32 using visual programming.

| Most remote measurement sites have no mains power and patchy coverage. A new class of industrial sensor node — certified, battery-powered, a...