These are used forThe King of PumpkinsThe model! The pumpkin human body detector is a device that uses a photosensitive resistor connected toESP32 Wemosand independent5mW laser diodeThe beam interruption sensor.

Sensor board design and thing:4694868 orPrintable linksMatching

The laser bracket isPrintable linksthe adaptation of

These models are designed to use ground supports, but they can also be unscrewed and placed on a tabletop or installed in any way you like. The holes are suitable for 2mmX25mm screws.

The Arduino code uses the BLE service to notify the "King of Pumpkins" app when someone approaches, and to send a terrifying greeting!

The first test video

The code will be released on my GitHub soon.

*The link is not a promotion link.