In recent years, IR blasters have become a standard part of smart TV systems, but it's not always clear just what these devices are or do. For starters, the IR in the name stands for infrared, which ...

An Infrared close object sensor installed on an industrial vehicle detects objects or pedestrians located in a hazardous area. When it detects a problem an audio/visual indicator makes an alert, that ...

You can use mmWave sensors to monitor presence rather than simply detecting motion.