Voltage-level-indicator
Posted on Aug 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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In this circuit a non-locking push switch is used to activate a load. The load remains switched...
The PIC16F870 keeps track of battery voltage as well as both charging and discharging currents....
A circuit that will find enough applications. Basically the designing became in order to exist...
For the past year and a half I (Mark) have been part of an Ann Arbor, Michigan based group named...
Ticking Bomb sound generator circuit diagram. The circuit gets going by charging the 2. 2uF and...
This is the 100W DC inverter build based transistored multivibrator as well as transistor signal...
This is a chapter that was cut from Applied Robotics 2 because of space issues. It discusses...
With the remote control at your fingertips, you are the only one to decide when and if the...
This design allows to operate two intercom stations leaving the operator free of using his/her...
The induction coil forms part of the anti-sidetone circuit. It couples audio to the receiver, and...
As it has already been stated the circuit consists of an ultrasonic transmitter and a receiver...
A 2004 Chevy Tahoe that totally lost power. I was driving at 60 mph and watched my tachometer...
They are op-amp based filters and are most useful in the audio frequency range. These parts...
As shown in FIG alarm by a gas-sensitive sensor element QM, buck rectifier and regulator...
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