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. ... (Arduino Uno/Nano Sketch)… [code] ...

If you’re looking for something to do this weekend, consider this PIR (passive infrared) Sensor Alarm project. Not only will the motion-sensing alarm ...

Another sensor suitable for our project is the Infrared Proximity Sensor. This sensor gives logic high (H) output when an object comes close to the sensor. This sensor only responds to 38 KHz ...