Smoke Alarms Projects and Circuits (4)

Browse through a total of 4 smoke alarms.

Smart Smoke Alarm Circuit Update 1

Smoke Alarm Circuit

Jim Keith - 01/17/2013

The original smoke alarm circuit has some problems and has left some hobbyists and students disappointed. Rather [...]
photoelectric smoke detector circuit schematic

Photoelectric Smoke Detector

P. Marian - 01/15/2013

This photoelectric smoke detector circuit uses one LED and 2 LDRs to detect the smoke and sound an [...]
smoke sensor alarm circuit diagram

Smart Smoke Alarm Circuit

T.K. Hareendran - 03/30/2010

At the heart of this ultra simple smoke alarm is H21A1, which is a photo-interrupter module consists of [...]
smoke detector circuit

Smoke Detector Circuit

P. Marian - 04/25/2009

This home smoke detector circuit warns the user against fire accidents. It relies on the smoke that is [...]
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