Micropower double ended limit detector
Posted on Apr 17, 2012
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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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To maintain an alarm condition when an overvoltage transient disappears, add an SCR to the...
This circuit detects an object passing in one direction but ignores it going the opposite way....
The AD537 uses its two reference outputs—one fixed at 1 V, the other of which varies with...
At the heart of the whistle swatch are a pair of tone detectors, each of which is built around...
On the breadboard, build two bi-directional motor control circuits (also known as "H-bridge")...
It is fairly safe to say that most Bulle clocks will need their magnet rejuvenated before they...
This scan is from my old ETI Circuits #2 from the 70 ²s. It`s about the best op-amp info you are...
The MT8885 is a monolithic DTMF transceiver with call progress Filter It is fabricated in CMOS...
Just like my previous circuit using LM358 this is also very cheap, also under 100 rupees. This is...
The time can be set with a potentiometer between 1 minute and 1023 minutes, about 17 hours. A...
If you`ve ever wondered how electronic devices like computers can count, this article gives a...
The above shows my home-built digital clock. It uses Nixie-tubes for readout. In contrast to most...
As shown for the voice-activated lamp circuit. The circuit consists of an operational amplifier...
Circuit of the easy to use cedar LM3sDZ temperature detection heir. Does not show adjusted to...
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