URB Reference Manual
Posted on Feb 7, 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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Power this project from sunlight with a CirKits solar power circuit board kit. Other LED lamp...
This circuit is intended to control a heating system or central heating plan, keeping constant...
The GPS is based on 24 satellites located in six orbital planes at a height of 20 200 km and...
This circuit uses readily available parts to implement a 0-to-200-nA current source. The circuit...
This is probably the simplest radio transmitter that you will find anywhere. It has a total of...
When ever I find an easy way to do something I just have to make a record of it. There are some...
This is a simple siren sound that high power output and very noisy. ICs, Digital ICs are easy to...
The thermocouple of the Model K is present industrial production, one kind of more common...
A simple circuit which is switchable between a sharp cut-off above 2. 5 kHz and a narrow bandpass...
At the heart of this heat-sensitive switch is IC LM35 (IC1), which is a linear temperature sensor...
This type is commonly used by home users for the Presidency with their PC. UPS to be able to do...
Magnetic (or electromagnetic) water descaler devices have been showing up on the shelves of Home...
A tracking mount for trusty Minolta SRT-101. My untracked photos of Hyakutake had not done the...
The circuitry for the tone detector, solenoid driver, and motor speed control (paper transport...
Clever use of a four-way slowly dimming LED driver integrated iU shoe production and Qis four...
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