Simple continuity tester for pcbs
Posted on Aug 9, 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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Works on AVR controllers with RAM and a hardware UART. This code is easily modified to integrate...
The circuit has a typical voltage gain of 84 dB and a typical AGC range of 80 dB. It gives very...
The unit consists of rlamplifier Q1, local oscillatorQ2, and mixer Q3. The two bands are covered...
This battery tester makes use of an LM3914 bar-graph driver IC. SI selects load on battery under...
The circuit is built around popular CMOS oscillator-cum-divider IC 4060 and small audio amplifier...
The simple bell circuit without IC reward points: 0 | solution time : 10:20 | Asked by: Zhang Dan...
The ADM1066 is a configurable supervisory/sequencing device that offers a single-chip solution...
Is it possible to make an op-amp out of nothing but 555 chips and passive components? Not a...
If you need to hold an analog signal for infinite period then this digital sample and hold...
This circuit places a maximum limit on the current available from the output terminals. It does...
It consists of several gates as a crystal oscillator circuit c Several gates as shown by a...
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