raspberry pi vu meter
Posted on Feb 5, 2014
Related Circuits
New Circuits
-
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.....
.
This is a complete alarm system with 5 independent zones suitable for a small office or home...
Twang is a guitar sound that more or less approximates a banjo or mandolin. The circuit produces...
The crystal is in a feedback circuit from collector to base. A trimmer capacitor in series shifts...
This siren provides a constant audio output, but alternates between two separate tones. The...
This Nicad battery tester discharges the test battery at a rate of 500 mA. When the endpoint of...
Using two CA3450 op amps and a CA3227 transistor array, this circuit will accurately full-wave...
The balloon went to 103, 258 ft peak reported altitude. Many items had to be considered for...
Using a single 555 Timer IC and a small transformer to generate a high voltage, this circuit will...
This website was created to help students find idea for their project/FYP. All the content...
Whether the tuning aid can be trusted on 70 MHz is a bit of a complex matter, but wtih me it...
A nice design which even turns off if the pushbutton is held depressed or jammed a long time. Not...
Once you have compiled your C or C+ program into an AVR binary using AVR-GCC, you will need to...
Fans in PCs can be objectionably loud. In many cases, the amount of noise produced by the fan can...
Using the LM3551 and LM3552 are fixed frequency, current mode step-up DC DC converters with two...
This small InfraRed Remote Control Tester circuit is used for checking the operation of an...
The ISL8107 is a single phase, non-synchronous buck controller with an integrated high-side...
Colpitts oscillators are somewhat similar to the shunt fed Hartley circuit except the Colpitts...
This circuit generates the sound of the electronic ringer found in modern telephones, supplanting...
Circuit element appears more problematic is Shu. Since long time after the start button, even if...
characters left: