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, ...

This human safety device offers a compact, reliable solution for detecting, monitoring, and responding to emergencies involving vulnerable individuals.

No user-serviceable parts inside? Give me a break! The head unit is tough to get to, but the PCBs within the chassis use ...