Windspeed Indicator Circuit With LM7805 IC

the following circuit shows about Windspeed Indicator Circuit. Features: down to a constant 5 VDC by the LM7805 voltage regulator, 9 VDC supply .....

Isolated Voltage Sensor With IN4148 IC

This circuit bellow shows a simple voltage-controlled oscillator (VCO), coupled to your instrumentation by an optoisolator, the function for .....

LM336 Temperature Measurement Circuit

used for Fahrenheit measurements, in this case the freezing point is adjusted at 320F. At 2120F, P2 is adjusted to obtain 0.9V at output .....

L7136 LCD Thermometer For Vehicle Engine

Function: Used for measure the voltage change minute by management before the temperature diodes. Component: IC, Diode, Resistor, 3-1/2 digit LCD (SP521PR).....

PIC16F84 IC For 40 MHZ/400 MHZ Frequency Counter

The following circuit shows about 40 MHZ/400 MHZ Frequency Counter Circuit Diagram. This circuit based on the PIC16F84 IC. Features:  with .....

Improved Vibrating Battery Tester Based On The LM393 IC

Improved Vibrating Battery Tester. This Circuit Based On The LM393 IC. Features: to test the batteries,It will test AAA, AA, C and D cells, as .....

Designing Simple Digital Multimeter

The following circuit shows about Designing Simple Digital Multimeter Circuit Diagram. This circuit using the ADD3501. Features: combines (volts, .....

Home Built Nuclear Magnetic Resonance Spectrometer

Home built NMR spectrometer, showing the construction and circuitry. Demonstates 90 degree and 180 degree pulse sequence, and generation of FIDs and spin echos ...

The Comets Flame

Basically, the idea is to use a high-precision A/D (analog to digital) converter to collect data, and then store that data to an SD flash memory card in a Windo...

Methods of Monitoring Fan Performance

Today`s electronic systems are in a continuing, evolving design cycle where more smaller, and hotter components are being crammed into tight enclosures. These e...

MSP430 BASED 30V VOLT METER

...

Two-Channel PC Based Oscilloscope USB

Since portable PCs are today common and a USB linkis a better solution here we present an oscilloscope using USB port of the PC that operates at upto 10 kHz wit...

Zener diode tester

Here is a very simple circuit that can be used for testing Zener diodes. The IC1 NE555 is wired as an astable multivibrator and the output of the IC is stepped ...

Wireless mains voltage tester

This circuit can be used to test whether mains voltage is present or not without having electric contact with mains line. The CMOS IC CD4033 is the heart of thi...

Wind meter

Here is a very simple wind meter (anemometer) circuit. I can`t guarantee much on the accuracy of this circuit but it circuit works quite fine. You can measure w...

Digital voltmeter using 8051 microcontroller AT89S51 with circuit diagram and software

Simple 0-5 digital voltmeter using 8051 (AT89S51 microcontroller) with circuit diagram and assembly language ASM code. Simple digital voltmeter.....

VHF field strength meter

This is a simple and low cost wide band VHF field strength meter. The field strength is measured by converting the radio signal to DC and measuring it. The RF s...

Measurement Related

Audio Level Meter Description A simple and low cost audio level meter circuit that can be used to measure the audio level of your sound source. This circuit is ...

Tachometer circuit

Here is a simple circuit that can be used as a tachometer. The circuit is basically a frequency to current converter which converts the incoming signal into a p...

Sound pressure meter

Here is a simple circuit that can be used to check the sound levels. The sound pressure meter is vey useful in setting up home theater systems, if you need to t...