The PIR library implements a class to monitor 1 or more PIR sensors. The library supports default 8 PIR sensors per object, which typically are added in setup (). It is possible to add a sensor (pin) ...

The Mailbox Guard is a device that detects when a new letter or package has been delivered to your mailbox using a PIR sensor and door reed switch. It can send a signal to your LoRa gateway, then the ...

Electrical energy increases its vast area day by day. Just like water it becomes necessary to save power for betterment of our future. So, an idea came into our minds why not we develop a technique ...

Electrical appliances are one of the most important necessities in the modern world. With the advancement of technologies, modern electrical appliances can accomplish various tasks effectively for the ...

Apple Watch Blood Oxygen Sensor Returns: How to Use It and What It Can Tell You About Your Health The smartwatch's Blood Oxygen app lets you measure the oxygen level of your blood on-demand. It's ...

The built-in PIR sensor in each unit detects movement 6-8 metres away, and the 1200 mAh rechargeable battery needs only 6-8 hours of charging during the day to provide 8-12 hours of continuous ...