XDA Developers on MSN

6 smart home devices anyone can build with a cheap ESP32 and an even cheaper sensor

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

A Differential Coupled-Line-Based Active Microwave Sensor System for Retrieving Real Permittivity of Binary Aqueous Solution

Abstract: An active microwave sensor system, which is based on a differential coupled-line, is proposed. The sensor comprises a differential coupled-line, as well as RF circuits. The coupled-line with ...
IEEE

In-Plane and Out-of-Plane 2-D Microdisplacement Sensor Based on a Single Microwave Resonator With Machine Learning

Abstract: Microwave displacement sensors have garnered significant research interest in recent years and have found successful applications in industrial automation and aerospace engineering. However, ...
Elektor Magazine

Wi-Fi-Based Person Detection on an ESP32: When Your Router Becomes a Motion Sensor

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