Cat toys electronic circuit
Posted on Nov 10, 2015
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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Normally analogue-to-digital con-verter (ADC) needs interfacing through a microprocessor to...
The output frequency of the VCO, U1, varies inversely with the input voltage. With a 1 "V input,...
This temperature controller has a range of -50 to +150°C and permits defrosting. R7, VR3, and R8
A center-tapped 240-V transformer is used with two SCR devices to provide rectified ac...
Most homes today have at least a few infrared remote controls, whether they be for the...
This is a simple proximity switches with IC 4049th The IC4049 is a bipolar monolithic integrated...
I bought a Doepfer LMK3+ keyboard from a very pleasant chap in Dunedin, via TradeMe, a popular...
Here is the schematic for the circuit, including the connection to the piezo hit sensor. For...
Interface the LCD with 8051 microcontroller at89s52. But whenever I power up the microcontroller,...
This is a less expensive, and DIY option for a hearing aid. It is not a substitute for a real...
This simple circuit senses heat from electronic devices and gives warning alarm. It is an ideal...
A Simple Transistorized one Minute Delay Timer Circuit. It doesn`t include any complex or...
It is said that the mice are more sensitive to electromagnetic fields, which is why the...
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