Fastest finger first indicators (FFFIs) bring precision to quiz games, measuring contestants’ reaction times with accuracy.

An Automatic Plant watering system is a device (or setup) that uses sensors to monitor the soil moisture and if the moisture ...

Building an Arduino speed detector using IR technology to measure the speed of a moving object is much more cost-effective, and it is also very simple to build. All you need are a few basic parts, ...

These devices have key drawbacks. Water level indicators require manual pump operation and often waste power as multiple LEDs ...