• Skip to main content
  • Skip to primary sidebar

Homemade Circuit Projects

Need circuit help? Post them in the comments! I've answered over 50,000!

Blog | Categories | About | Contact | Calculators-online
You are here: Home / Archives for Frequency

Frequency

Extremely Low Frequency (ELF) Radiation Monitor Circuit

Last Updated on February 8, 2023 by Swagatam Leave a Comment

ELF monitor circuit

ELF stands for Extremely Low Frequency, which is an electromagnetic radiation generated by most of out household electrical equipment. Regarding the effect and severity of ELF fields on human health, debate remains heated. However, I believe there is enough data for us enthusiasts to adopt a conservative stance on the level of exposure we must […]

Filed Under: Sensors and Detectors Tagged With: ELF, Extremely, Frequency, Monitor, Radiation

Tuned Radio Frequency (TRF) Receiver Circuits

Last Updated on August 19, 2022 by Swagatam 13 Comments

hiw to wind Li and L2 compressed

A tuned radio frequency receiver (or TRF receiver) is a form of radio receiver which is made using a number of tuned radio frequency (RF) amplifier stages accompanied by a detector (demodulator) circuit to draw out the audio signal, along with an audio frequency amplifier for amplifying the extracted audio into a loudspeaker. This kind […]

Filed Under: Audio and Amplifier Projects Tagged With: Circuits, Frequency, Radio, Receiver, TRF, Tuned

5 Digit Frequency Counter Circuit

Last Updated on August 10, 2021 by Swagatam 1 Comment

5 digit counter circuit

This digital frequency counter will provide a direct reading of the frequency applied at its input, through a 5 digit common cathode display module. The compact frequency counter can be used for accurately counting the frequency or pulse from any intended source. Main Applications It can be also used for measuring the RPM of a […]

Filed Under: Meters and Testers Tagged With: Counter, Digit, Frequency

Simple Frequency Meter Circuits – Analogue Designs

Last Updated on October 9, 2024 by Swagatam 20 Comments

R1 C1

The following simple analogue frequency meter circuits can be used for measuring frequencies which may be either sine wave or square wave. The input frequency which is to be measured must be at least 25 mV RMS, for optimal detection and measurement. The design facilitates a relatively wide range of frequency measurement, right from 10 […]

Filed Under: Meters and Testers Tagged With: Analogue, Circuits, Designs, Frequency, Meter, Simple

1 Hz to 1 MHz Frequency Reference Generator Circuit Diagram

Last Updated on January 17, 2025 by Swagatam 36 Comments

1 MHz time base

This circuit is an universal frequency generator which you can use in numerous frequency and time period testing applications. It is primarily well suited for a gate pulse generator in frequency counters. The circuit is capable of generating an entire range of reference frequencies such as 1 Hz, 5 Hz, 10 Hz, 50 Hz, 100 […]

Filed Under: Oscillator Circuits Tagged With: Frequency, Generator, Reference

Arduino Frequency Meter Using 16×2 Display

Last Updated on December 5, 2024 by Swagatam 4 Comments

arduinodisplayconnection

In this article I will show how to construct a digital frequency meter using Arduino whose readings will be showcased on a 16×2 LCD display and will have a measuring range from 35 Hz to 1MHz. Introduction Being electronics enthusiast, we all would have come across a point where we need to measure frequency in […]

Filed Under: Arduino Projects, Meters and Testers Tagged With: 16x2, Arduino, Display, Frequency, Meter

  • Page 1
  • Page 2
  • Page 3
  • Go to Next Page »

Primary Sidebar

circuit simulator image

Subscribe to New Posts




Categories

  • Arduino Projects (89)
  • Audio and Amplifier Projects (132)
  • Automation Projects (17)
  • Automobile Electronics (101)
  • Battery Charger Circuits (83)
  • Datasheets and Components (104)
  • Electronics Theory (143)
  • Free Energy (37)
  • Games and Sports Projects (11)
  • Grid and 3-Phase (19)
  • Health related Projects (25)
  • Home Electrical Circuits (12)
  • Indicator Circuits (14)
  • Inverter Circuits (88)
  • Lamps and Lights (142)
  • Meters and Testers (69)
  • Mini Projects (46)
  • Motor Controller (64)
  • Oscillator Circuits (27)
  • Pets and Pests (15)
  • Power Supply Circuits (108)
  • Remote Control Circuits (50)
  • Security and Alarm (64)
  • Sensors and Detectors (101)
  • Solar Controller Circuits (59)
  • Temperature Controllers (42)
  • Timer and Delay Relay (49)
  • Transmitter Circuits (29)
  • Voltage Control and Protection (39)
  • Water Controller (36)




Other Links

  • Privacy Policy
  • Cookie Policy
  • Disclaimer
  • Copyright
  • Videos
  • Sitemap




People also Search

555 Circuits | 741 Circuits | LM324 Circuits | LM338 Circuits | 4017 Circuits | Ultrasonic Projects | SMPS Projects | Christmas Projects | MOSFETs | Radio Circuits | Laser Circuits | PIR Projects |

Social Profiles

  • Twitter
  • YouTube
  • Instagram
  • Pinterest
  • My Facebook-Page
  • Quora
  • Stack Exchange
  • Linkedin



  • Recent Comments

    • Swagatam on LM35 IC Temperature Controller Circuit with Push Button
    • Neeraj on LM35 IC Temperature Controller Circuit with Push Button
    • Swagatam on LM35 IC Temperature Controller Circuit with Push Button
    • Neeraj on LM35 IC Temperature Controller Circuit with Push Button
    • Swagatam on LM35 IC Temperature Controller Circuit with Push Button

    © 2025 · Swagatam Innovations