Deviation Meter
A deviation monitor can be made by connecting some form of frequency modulation (FM) detector to an AC voltmeter and calibrating the meter in units of frequency...
miconghs
The Micon-GHS clock is a very accurate handy clock for mobile observation with some intelligent facilities. `Note that "Micon" is a short form for "Microcompute...
three digit display.
The Mini 3 digit display aka "DVM-module" (digital voltmeter module) can easily be tuned and modified because you have control over the firmware. The key advant...
mini digital voltmeter.
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arduino based digital oscilloscope
I have always wanted to have an oscilloscope at home. I am trying to make a digital oscilloscope using the Arduino. I made the digital oscilloscope into an Ardu...
3 voltmeter method of measuring choke
The choke coil parameters we are going to measure in this 3-voltmeter method are - the inductance, resistance as all choke coils have inherent resistance in add...
dmm fuse protector
Typically the input protection fuse of your DMM will blow in the middle of a demonstration or an exciting phase of your construction work. Spare fuses are alway...
maximum minimum voltage indicator
This circuit indicates which of three voltages in the range from about about -4V to about +4V - at A, B and C - is the highest by lighting one of three indicato...
software voltmeter
A four channel voltmeter that displays voltage readings in a software application running on a computer. An Arduino reads the voltages, and sends them to an app...
arduino 4 channel LCD voltmeter
An Arduino voltmeter that displays voltage on an LCD display. The voltmeter has 4 channels for measuring four different voltages.....
Contactless Tachometer
The techometer also called revolution counter is an instrument that measure the speed of a rotating machinery. Generally these measurements are rated in revolut...
sound level meter circuit
This sound level measuring device circuit can live used to control the intensity of a sound recording before in the field of a disco. It has 5 measurement domai...
voltage level indicator
The circuit is here as it is of high educational value. I have not tested it. You can `simulate and test` or `wire it up and try` and let me know how it worked....
5 volt ttl voltage monitor
This is a simple device designed to control supply voltage +5 V Monitor provides information signals TTL level, accompanied by the LED display, indicating that ...
mic circuit
This tour, available in Stainless DIL 8 legs, can measure 4 analog voltage independent between 0 and 5 volts, and send the result of this measure in the form of...
make mini logic analyzer
This mini Logic analyzer is a tool for you to watch on LCD the logic transitions 0 or 1 of a digital data signal. A digital data signal can be found on the outp...
maintenance sanwa yx 360tr schematic diagram
For those who are looking for a copy of the schematic diagram on this type of Analog Multitester and other brand using the same circuit diagram.....
connecting voltmeter and ammeter
Voltmeter, Ammeter, Watt meter and Energy meter are four pillars of electrical energy and are most important devices used in electrical engineering field. You c...
pic frequency counter using 16f877a
It uses the simpler method of direct frequency measurement which is easy to do but means that the number of digits displayed depends on the input frequency. If ...
Led voltmeter circuit
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