This blog provides lists and reviews of the latest projects, project consultancies, seminar topics, kits/circuits, and project building tools. It also includes trending technology and research/innovation reviews for students to help them develop their own projects or seminar topics.
Title: Smoke/Gas Detector and Alarm System
Usually all premises or habitat needs Smoke Detector as they are fire hazardous places [as they contain power supply or fire] and easily vulnerable to such catastrophic. Smoke Detector indicates the presence of smoke in early stage, which may leads to fire hazards [i.e., assumed that smoke comes before any fire accident].
While extracting weak signals, with compromising the intrinsic signal to noise ratio (SNR), from microphones, audio sources, and other sound detectors and fed to Power Amplifiers for further processing some small amplification is needed. Such one stage is called Preamplifier stage.
