This is door knob touch alarm for your home security purpose. The alarm will be activated when someone touch the metal door knob. This circuit […]
Category: Alarm
This is the collection of alarm schematic diagrams at circuitdiagram.net. The alarm provides a warning tone when an event takes place, for example: thefts, fires, and other events that are not normal. Alarms have the capability of causing a fight-or-flight response in humans; a person under this mindset will panic and either flee the perceived danger or attempt to eliminate it, often ignoring rational thought in either case. A person in such a state can be characterised as “alarmed”.
Emergency Light + Alarm
This is the circuit diagram of emergency light included the alarm circuit to show you that there is no power source in your building due […]
Sound Effects Generator (8 different sound) based IC HT2884
This is the circuit diagram of sound effects generator. All sounds in this circuit are generated by HT2884. The HT2884 is a CMOS LSI chip […]
Electronic Bird Chirp Sound Generator
This is electronic bird chirp sound generator circuit which used to produce a sound like bird’s chirp. The transformer is a small audio transformer, type […]
Electronic Siren
This is Electronic Siren circuit diagram which use standard discrete components. The sound produced imitates the rise and fall of an American police siren. When […]
