• 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 Triggered

Triggered

Day/Night Triggered Automatic Door Lock Circuit

Last Updated on January 31, 2024 by Swagatam Leave a Comment

darkness activated door lock circuit

In this post I have explained a simple day, night triggered automatic door lock circuit, which can be used for autonomously unlocking a kennel door during day break, and locking it when night sets in. The idea was requested by an avid reader of this blog, Mr. Norman, as given below. Design Request and Specifications […]

Filed Under: Automation Projects, Pets and Pests Tagged With: Automatic, Door, Lock, Night, Triggered

Sound Triggered Halloween Eyes Project – “Don’t Wake the Devil”

Last Updated on January 12, 2024 by Swagatam Leave a Comment

halloween eyes

This can be a perfect circuit project for Halloween, although sound activated gadgets likewise may have plenty of other applications. When somebody enters the Halloween house, a sensitive MIC detects the sound vibrations and spins the eye balls of the scary looking beard man, as if it was waken up by the sound, and is […]

Filed Under: Lamps and Lights Tagged With: Eyes, Halloween, Project, Sound, Triggered, Wake

PIR Triggered Message Player Circuit

Last Updated on January 8, 2024 by Swagatam Leave a Comment

unnamed

In this post we diagnose a PIR activated message player circuit, which was sent by Mr. Norman Kelley one of the dedicated followers of this blog for improvements. I have explained more about the design through the following discussions. Triggering Message Playback with a PIR Input I have been working on a project for about […]

Filed Under: Audio and Amplifier Projects Tagged With: Message, PIR, Player, Triggered

Darkness Triggered Car Safety Park Light Circuit

Last Updated on November 27, 2023 by Swagatam Leave a Comment

park2Blight

In this post I have explained a circuit concept for enabling cars with an add-on automatic safety park light which triggers during night and signals the position of the car and consequently prevents a mistaken collision or dashing by another vehicle. The design ensures minimum consumption and relatively higher brightness for the involved LED lights. […]

Filed Under: Automobile Electronics Tagged With: Darkness, Light, Park, Safety, Triggered

Music Triggered Amplifier Speaker Circuit

Last Updated on May 5, 2022 by Swagatam 8 Comments

buzzercoil

The circuit idea I have explained below enables a power amplifier loudspeakers to switch ON only when there’s an input music available, otherwise it makes sure that the loudspeakers remain shut off. The idea ws requested by Mr. David Alda. Technical Specifications Your site is just awesome. I’m hoping you can post a tweak to […]

Filed Under: Audio and Amplifier Projects Tagged With: Amplifier, Music, Speaker, Triggered

Battery Current Indicator Circuit – Current Triggered Charging Cut off

Last Updated on January 8, 2024 by Swagatam 30 Comments

In this post I have explained about a simple battery current sensor with indicator circuit which detects the amount of current consumed by the battery while charging. The presented designs also have an auto cut off when the battery stops consuming current at its full charge level.. Why Current Drops as Battery gets Charged We […]

Filed Under: Indicator Circuits Tagged With: Battery, Charging, Current, Indicator, Triggered

  • Page 1
  • Page 2
  • 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 10 LED Tachometer Circuit Diagram
    • Swagatam on Zero Drop LDO Solar Charger Circuit
    • Swagatam on Simple Buck Converter Circuits using Transistors
    • Swagatam on Simple Delay Timer Circuits Explained
    • Swagatam on 10 LED Tachometer Circuit Diagram

    © 2025 · Swagatam Innovations