Roborock Reigns Supreme for Robot Vacuums—But These Other Editor-Tested Models Are Worth a Look

We put several robot vacuums from Roborock, Eufy, Dreame, and more through a series of mess tests to see which stood out.
EDN

Understand quadrature encoders with a quick technical recap

A quadrature encoder uses two output channels offset in phase to detect both direction and position with greater precision.