Building an Arduino speed detector using IR technology to measure the speed of a moving object is much more cost-effective, ...

It will provide 24-hour heat and motion detector to protect your family's ... together with receivers or independently. The motion sensor range can reach up to 30 feet.The wireless range from ...

Advanced features like motion detection sensitivity should be available too, to help reduce instances of false positives and unwanted light activations. When all this might be available for your ...

We’re still not sure exactly how [connornishijima]’s motion detector works, though many readers offered plausible explanations in the comments the last time we covered it. It works well enough ...