probl
Posted on Feb 4, 2014
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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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Like most other ESCs, this one is built up using N-channel Power MOSFET`s because of their good...
The board has been initially developed to learn with CAN, so a CAN transceiver is available...
To get a low output impedance I needed to use quite a high step-down ratio (20:1); after all,...
This simple circuit using a single transistor turns ON the relay when light falls on the LDR....
A bidirectional H bridge DC motor control circuit is shown here. The circuit is based on the IC...
After we published the original Li`l 7 AM Transmitter plans, fellow experimenter Scott Todd sent...
A mobile phones microphone or mouthpiece is a component used to convert sound signal into an...
A dual DC motor controller that utilizes an H-bridge controller chip. As well as the basic...
This simple and cheap circuit is not just for Christmas! There are just two resistors, a...
This is a very simple circuit where the PIC and an internal 1kHz sinewave table do all the hard...
This circuit detects the 1050-Hz tone sent by the NOAA (National Oceanic and Atmospheric...
This program initializes all of the sixteen io lines of the U4x1 to be outputs. The lower four...
After each zero electromagnetic pickup has a sine wave input, as shown in the National...
As shown in FIG TOPSwitch FZ chip switching power supply circuit diagram is controlled by the...
By the PI.] P-type transistor VT2, VT3 and other components common emitter-coupled trigger (ie,...
Figure 4-7 pitch analysis using the relation obtained above design calculation control circuit,...
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