Simple Square wave Generator
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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As I used this probe last nigh to determine if a 384 MHz oscillator was really working or not, I...
This board layout was created using the SOIC version of a PIC16F627A without drawing the usual...
This one-valve (ECL82) CW Transmitter occupies a very special place in my amateur radio history....
The above pictured schematic diagram is just a standard constant current model with a added...
Charge redistribution to achieve A/D conversion. In typical applications, as a ratiometric...
This circuit gives a positive output when the input voltage exceeds 8 volts. Between these limits...
This is one of the most accurate and simplest LC inductance / capacitance Meters that one can...
An interesting DC/DC converter IC is available from Linear Technology. The LT1615 step-up...
The discussed automatic change over relay circuit was requested by Mr. Karimulla Baig. The...
When the water is empty the wires in the tank are open circuited and the 180K resistors pulls the...
By using a potentiometer, R2, as one of the resistors you can dial up the output voltage wanted....
Everybody who regularly works with servos will know several instances when such a servo tester...
A newer version of this circuit board is available. Rev 4 includes a faster CPU, more memory,...
FIG. 555 and R1, C1 and other components monostable delay circuit, the input square wave signal...
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