In this article, we implement a rain and ice sensor by analyzing the reflection of an infrared (IR) light source. This project uses proven techniques based on multiple reflections of IR light in the ...

I recently had to build an infrared close proximity sensor that could tell if something was dropped in a parcel delivery drop box. After some searching, I ended up using a microcontroller and a piece ...

Photoelectric sensors detect objects and surface changes using variations in optical properties. Each sensor includes a light emitter and a receiver, with most relying on infrared light. In optical ...

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 ...

Active IR sensors include a light source, often a laser or LED, which emits IR radiation and detects the reflected rays from nearby objects. On the other hand, passive IR sensors (PIR) detect the ...

The built-in web server, which is hosted on the ESP32, allows monitoring through any device connected to the local network, ...

Your next Android phone could have some wild depth-sensing abilities, if Qualcomm has anything to say about it. The company is starting to release details about its next flagship Snapdragon processor, ...