Frequency Meter Circuits
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I am continuing to add DIY equipment to my home workshop. Audio oscillator is a very useful tool that is needed when we test audio projects. I already have a similar tool but it is just an oscillator without a frequency counter. I decided to use the.... -
Its basic function is frequency and cycle of the measuring signal, the application of the frequency counter is in a very large range, it is not merely applied to general simple instrument measurement, and apply to other fields such as teaching, scientific.... -
This digital frequency meter of circuit is succinct, software potentiality is fully excavated, the survey accuracy of the low frequency band is high, have prevented the invasion of the interference effectively. The distinctive quality has embodied in and.... -
At present, that utilize in the high-power, high frequency, narrow pulsing application is basically vacuum tubes, for instance: Secondary electron transmitting tube, discharge gap switch, trigatron, hydrogen brake pipe, etc. The main research direction is.... -
This design synthesis has considered the survey accuracy of the frequency and measured the requirement of response time. For example it is 3 significant digits to look on the measuring result of the frequency as, require, at this moment if the frequency of.... -
Frequency Meter Circuit of Service Include all the standard frequency bands amateur hf and vhf and uhf And displayed on the LCD screen This is to e... -
60MHz Frequency Meter / Counter measures frequency from 10Hz to 60MHz with 10Hz resolution. It is extremely useful bench test equipment for testing and measuring frequency of oscillators, transmitters, radio receivers, function generators, crystals, etc..... -
This project is nice and small frequency counter that reads frequency from 1 Hz to 50 MHz that I have modified from original designed by Weeder Technologies . I have designed new PCB to fit with 16X1 LCD and change source code for compatible with new small.... -
This is a design circuit for tachometer circuit based on the LM2907 IC can be used to provide zero crossing datum to a digital system. At each zero crossing of the input signal the charge pump changes the state of capacitor C1 and provides a one-shot pulse.... -
This is a revised version of my LM35 based digital thermometer project that I posted last year. Although it is one of the simplest projects, it is very popular among newbies who are just starting to learn microcontrollers. There was a little flaw in the.... -
In order to make the circuit work, it is important to set the fuse bits inside the AVR micro controller correctly. Theses fuse bits can be set with the programmer that is used to flash the software. For those that are interested to understand the background,.... -
This is a successor of the PIC16C71 4-digit LED f-counter & V-meter. Some hard to find parts used in the previous version, which are out of production for some time, has been omitted. A rather early PIC16C71 has also been replaced by 28-pin device PIC16F876..... -
Simple frequency meter or frequency counter circuit with LCD display and Avr micro controller.DIY schematic circuit diagram & embedded c code.... -
This Circuit using only a single cell 1.5V battery.C1 need to be adjusted for peak reading. Then, to use it, turn on the transmitter and meter. .... -
The following circuit shows about 40 MHZ/400 MHZ Frequency Counter Circuit Diagram. This circuit based on the PIC16F84 IC. Features: with .... -
The frequency measurement is one of the most important things in radio construction. Without it you will be unable to set desired frequency in your receiver (and in transmitter too!), without it you will be unable to monitor frequency drifts etc. Sometimes,.... -
The TA2003PG TA2003FG are AM / FM Radio IC (FM F / E+AM / FM IF) which are designed for AM / FM Radios Combining with the TA7368P (Mono PW IC), a suitable AM / FM Radio system is able to be constituted. By Toshiba Semiconductor .. -
This calculator computes the resistors and capacitors for a NE555 timer chip, which has been configured as a astable multivibrator (oscillator), or square wave generator. Just enter in the duty cycle and the frequency and the calculator will compute.... -
A simple technique for measuring frequencies over quite a wide frequency range and with acceptable accuracy limits using a PC. It follows the basic technique of measuring low frequencies, i. e. at low frequency, period is measured for a complete wave and.... -
DHT11 is the most inexpensive sensor currently available in the market that provides calibrated digital outputs for temperature and relative humidity. It is availab.... -
The Multi function frequency meter is an instrument that can measurement many things in a single display with LED 7 segment 8 digit. The controls measures.... -
This cheap frequency meter circuit that we show to you. Suitable for general use in small laboratories. Because cheap, easy to build. And Qualified enough. For applications most of the electronics amateur. It can be shown that the frequency read directly.... -
Here is a simple technique for measuring frequencies over quite a wide frequency range and with acceptable accuracy limits using a PC. It follows the basic technique of measuring low frequencies, i. e. at low frequency, period is measured for a complete wave.... -
The 10 meters 27MHz CW radio amplifier is equiped with VN66AF transistor produced by Siliconix wich has some advantages: its cheap, great dielectric insulation and high gain. Here we use VN66AF as an rf amplifier for 10m band (26 30 MHz ). For linear.... -
This Frequency Counter is suitable to display the frequency of a frequency generator with an analog setting. It is a very simple counter and can be used as a module in a box with a frequency generator. It does what it says, it measures frequencies up to 2.... -
The frequency counter has to count the number of cycles per second of an incoming signal. Hence we need a device to count. In electronics circuits, counter ICs are available for counting. These IC`s can count the input pulses. The count is given as coded.... -
This is a simple frequency counter based on a micro-controller PIC16F84. Its maximum working frequency is around 30MHz, and have a 10Hz resolution, and having low current consumption (15mA), and very simple assembly. This uses 7 numbers seven segment LED....
New Circuits
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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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