Litter Box with 12V pc fan
Posted on Oct 15, 2012
New Circuits
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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.....
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A MW AM radio like those you buy, or used to buy. Use just BC549 trannies, with the BC559...
This circuit will detect AC line currents of about 250 mA or more without making any electrical...
This touch switch does not rely on mains hum for switching-It-can be used with battery powered...
This circuit utilizes the quasi-complementary output stage of the popular LM380 audio power IC....
One can transform an ordinary binary counter, such as a 7493, into an up/down counter with mode...
This is a design circuit for a doorbell. This circuit can produces a sound like bird sound. This...
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Sealed-lead-acid batteries, which find wide use in power-electronics products, such as UPS...
If you want to connect a video signal to several destinations, you need a distribution amplifier...
The FM497 is an integrated electronic ignition controller for breakerless ignition systems using...
You can test the board now. For example set the DIP switch to Switch1 ON, Switch2 OFF (15 sec...
This low-cost short-wave transmitter is tunable from 10 to 15 MHz with the help of ½J gang...
The figure shows the schematic of the circuit. A number of unique features give this design its...
The crystal radio gets its name from the galena crystal (lead sulfide) used to rectify the...
As shown in the automotive LED driver circuit diagram LT3486 constituted. LED used in the cars...
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