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”.
This is an old or "very old" schematic diagram of birdie tone or sound generator. Then, the bird sound circuit…
This is a really simple smoke alarm circuit design. The circuit consists of two important modules that are sensor module…
This is a low cost, simple, yet a surprisingly powerful electronic siren powered by just a 9V battery. The circuit…
Here the circuit design of vibration sensor alarm. Initially, when power switch S1 is flipped to "on" position, power indicator…
This is the circuit diagram of 70W OCL power amplifier with output power of 70 watts single channel. It uses…
The is a simple and versatile 12 stage water level indicator circuit which will show you the current water level…
Here is the simple and low cost light alarm circuit built using timer IC 555 as the sound generator and…
This is the circuit diagram of car audio system anti theft security which can be effectively used to protect and…
This is the electronic circuit diagram of aquarium temperature probe capable to monitor the temperature of water and indicate the…
This is laptop / notebook protector circuit to protect your laptop or notebook or netbook from being stolen. Fixed in-side…