Buy Mini Body Sensing Detector Mini PIR Motion Sensor Module – DC 3.3V-15V Body Sensing For DIY Projects Esp32 Sensors ...

Raspberry Pi enthusiasts have a common mantra: "Why buy what you can make?" After all, if you have the means to create your own gadgets, you can benefit from cheaper prices, open- ...

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 ...