Domestic Seismic Alarm
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 Project is used to control our household electrical devices from any where through the cell...
This circuit has been designed to drive an 8-W fluorescent lamp from a 12-V source using an...
R1_2K2 1/4W Resistor R2_27K 1/4W Resistor R3, R4_2K2 1/2W Trimmers Cermet or Carbon (or 2K)...
A water level controller based using 8051 is shown in this article. A lot of water level...
A circuit such that the microcontroller can toggle a GPIO pin and shut the whole system...
6V to 12V DC converter circuits that can be used to convert a small voltage of about 6 volts to a...
This is circuit design for a laser diode driver can be implemented using voltage-controlled...
ICs that in the past were far too expensive for the hobbyist tend to be more favourably priced...
Circuit diagram is very simple and works as follows: N1 Schmitt trigger works as an oscillator...
The 555 astable board uses a 555 timer in its astable configuration. This means that it outputs a...
The circuit generates a clock synchronized with the pulse width of two clock pulses, a random...
1237H-circuit principle shown in Figure 2-122. Its interior has four separate detectors can...
4096 times the input frequency PWM clock signal, counts up (Q three ), until the base is full...
Circuit consists of three parts is light-control section 5: Two foot f light time control...
characters left: