Pull requests help you collaborate on code with other people. As pull requests are created, they’ll appear here in a searchable and filterable list. To get started, you should create a pull request.

2.5W LED with advanced LED chip PIR motion sensor for automatic on/off operation 120° detection angle with a detection range of 3 to 5 meters 5V, 1A input power, ensuring energy efficiency and low ...

This project involves using an Arduino to measure distances using an ultrasonic sensor and controlling a buzzer and LED based on the measured distance. The provided Arduino code performs the following ...

Abstract: A PIR-based security system that reduces energy use and recording system memory requirements has been proposed. a warm-blooded moving thing within the area of passive infrared radiation (PIR ...

Abstract: In this paper is developed an optical sensor that uses a LED-photodiode system with the aim of detecting the presence of a possible flame inside the overhead bins of aircrafts. Since the ...