Weather stations are a popular project for experimenting with various environmental sensors, and for wind speed and direction the choice is usually a simple cup anemometer and wind vane. For [Jianjia ...

This hose-attached smart sprinkler maps your yard, rotates on command, and measures water use. Despite these clever features, the results are a little uneven.

I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those experiences to help students improve in math through practical applications and tips.

How navigation lights replace headlights at sea, reading direction, speed, and status from a single glance Posted: April 13, 2026 | Last updated: April 13, 2026 Ships don't just light themselves up at ...

A force is a push or a pull. For example, when you push open a door you must apply a force to the door. You also must apply a force to pull open a drawer. You cannot see a force but often you can see ...

Abstract: This article presents the design and construction of a contactless real time speed and direction measurement technique by using IR LED and sensor pair. The infrared system detects a break in ...

This project implements an encoder-based measurement system and PID control for motor speed using Arduino. It includes pulse reading, speed calculation, and closed-loop PID control with simulation ...