Pyroelectric Fire Alarm System Diagram
Posted on Feb 7, 2014
Related Circuits
New Circuits
-
This project fits more for custom made battery casing that can have more space to hide things inside. This switch with few alterations can be used for any other project as well but is designed based on e-bike needs! This project use a clever functionality of.... -
The circuit described here uses ultrasonic oscillations and operates based on the propagation velocity of these oscillations in the air. Thus, we can easily determine the distance of two points if the time within which the wave travels this distance is.... -
Sometimes the precious metals are hidden too deep and are not detected except with complicated devices. In many cases, however, small pieces of precious metal buried near the surface can be detected by relatively simple means. Everyone is very attractive to.... -
Many times for various reasons we forget or can not water the plants that we have in our homes. And many humidity sensors units just notify us with a beeping sound or with a flashing light, that the pot needs watering. But what if we are away from home? This.... -
The principle behind a metal detector is really very simple. Proof of this is the circuit that follows, in which it proves that the construction of a metal detector can be done in the minute, with few components that we find very easily everywhere. With the.... -
The sub-harmonic bass generator is a sound producing unit for guitars. The sound it produces looks very much like that of the bass guitar. The octave generator is sometimes quite unusual since it does not produce any of the usual ways of coloring the sound,.... -
In the past the sounding (sea bottom measurement) was done with the "bullet", that is, with a heavy lead object that the seamen plucked into the sea hung from a calibrated rope. As soon as the "bullet" reached the bottom, the depth appeared directly from the.... -
This Amplifier was designed to have the following specifications: Distortion less than 0.1% at full power of 100W even at 20KHz. Power has to be attributed to an extended bandwidth. The output transistors must be protected against short circuits. The power.... -
A series of LEDs serve to alert the gardener when plants need water. Using two conventional digital integrated LEDs and a series of LEDs, we make a very useful device for gardening. The device detects the amount of water in the pot and alerts the grower.....
.
This true SSB transceiver is built around just 5 vacuum tubes, with no transistors nor ICs....
A continuously working wiper in a car may prove to be a nuisance, especially when it is not...
This SCR pre-regulator keeps the filter capacitor Vc, in a variable output power supply, a few...
Using a single chip LM324 can, with active R-C networks, reduce the size of a 3-phase waveform...
This circuit can accept positive or negative or differential control voltages. The output...
This LED flasher give similar circuit with the previous transistor LED flasher, but this circuit...
Here, S1 and S2 are normally open, push to close, press button switches. The diodes can be red or...
This is a circuit for an LM1893 power line modem circuit. This circuit is used to transfer...
The differential outputs are balanced and are designed to drive long lengths of coaxial cable,...
The connection point for the positive terminal of the 9V battery is displayed as a circle at the...
This Chip from TI is simple to accommodate into your designs and this band-aid is acceptable for...
The DE2 board is equipped with an Analog Devices ADV7181 TV decoder chip. The ADV7181 is an...
A 1989 buick electra park avenue with a battery drainage problem. I think i have located the...
Electronic thermometers as shown in the circuit. RT is the thermistor, A is an integrated...
characters left: