Hall-effect-switches
Posted on Jun 11, 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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Useful for checking diodes, transistors, triacs, SCRs, resistors, and LEDs, this curve tracer...
This circuit is for a temperature controlled constant current battery charger. It works with...
This option has the advantage that one does not need to change anything in the receiver itself....
A valve radio receiver in its crudest form is a frequency determining tuned circuit, (consisting...
The LM35 series that is used in this project is a precision centigrade temperature sensor, which...
This is a aerial achievement low babble 500mW amplifier / booster for all low ability FM...
A better way to make a stepper motor controller is to make a printed circuit board, and then...
This circuit generates a dual-tone bells ringing similar to most door-bell units. It can be used...
The EMEM2 was invented by Dan Tracy. In a conversation with "Doug", the inventor of the large...
This transmitter is very stable and will deliver up to seven watts of power with the components...
The current draw should be somewhere between 80 and 100 mA. The exact value is very much...
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