Measuring the speed of a rotating object is a common requirement. Knowing the speed of table and ceiling fans, as well as kitchen appliances such as mixers and grinders, can often be useful. However, ...

Building Arduino projects with multiple sensors can unlock powerful environmental monitoring, automation, and IoT applications. From DHT11 temperature sensors to motion, gas, and light detectors, ...

A very cool (also warm!) property of the base-emitter junction of (most) small signal BJTs is the ΔVbe temperature-sensing ...

A growing range of Arduino-based robotics resources now combine sensor integration, coding fundamentals, and practical hardware skills. From beginner micro servo tutorials to advanced sensor ...

If you were to point to a single device responsible for much of Hackaday’s early success, it might be the Arduino Uno. The ...

Leveraging a prior fixture design with different lab equipment once again enables highly reliable results. High resolution ...

Many HVAC systems in North America operate off 24V systems, which can be readily upgraded with off-the-shelf  smart ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...