• Skip to main content
  • Skip to primary sidebar

Making Easy Circuits

Learn and build electronic circuits

You are here: Home / Archives for Lock

Automatic Kennel Door Circuit with Day Night Lock

Last Updated on December 26, 2024 by Admin Leave a Comment

darkness activated door lock circuit

This article explains a simple automatic door locking system that works when day turns into night. This clever setup is made to automatically unlock a kennel door in the morning […]

Filed Under: Automation, Pets and Pests Tagged With: Automatic, Day, Door, Kennel, Lock, Night

Keypad Lock Circuit using a Single IC

Last Updated on January 10, 2018 by Admin Leave a Comment

025

The post explains a simple failproof digital keypad security lock circuit using a keypad module and a single CMOS IC . Introduction A decimal keyboard, a CMOS IC, about three […]

Filed Under: Security and Alarm Circuit Tagged With: Keypad, Lock, Single

Door Lock Circuit using Digital Code

Last Updated on January 10, 2018 by Admin Leave a Comment

IMG 0005

In this post we try to analyze a simple door lock circuit using digital code that needs to pressed with a unique sequence in order to activate the door lock […]

Filed Under: Security and Alarm Circuit Tagged With: Code, Digital, Door, Lock

How to Make a Barcode Security Lock Circuit – Part1

Last Updated on February 17, 2018 by Admin Leave a Comment

barcodesensor

A basic barcode scanner circuit is described down this page article utilizing simply a couple of ordinary components for example an opamp, an LDR and an laser light. Everyone has […]

Filed Under: Security and Alarm Circuit Tagged With: Barcode, Lock, Part1, Security

How to Make a Barcode Security Lock Circuit – Part2

Last Updated on February 17, 2018 by Admin Leave a Comment

barcodescanner

In the earlier post we mastered a basic barcode sensor circuit, here we are going to research precisely how the felt pulses could be changed for obtaining unique sets of […]

Filed Under: Security and Alarm Circuit Tagged With: Barcode, Lock, Part2, Security

How to build a Infrared Remote Control Security Lock Circuit for Automotive Applications

Last Updated on February 17, 2018 by Admin 2 Comments

motorcyclesecuritylockcircuit

An easy, low-cost yet very beneficial infrared based remote controlled security lock could be researched in the following post. Infrared Remote Control Security Lock Circuit for Automotive Applications   The […]

Filed Under: Infrared, Remote Control Tagged With: Build, Control, Infrared, Lock, Remote, Security

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

Primary Sidebar

Categories

  • 3 Phase (4)
  • 8051 Microcontroller (1)
  • Arduino (11)
  • Audio and Amplifier (102)
  • Automation (8)
  • Battery Chargers (64)
  • Bicycle Projects (4)
  • Car and Motorcycle Projects (39)
  • Datasheets (10)
  • DIY Projects (5)
  • Electrical (15)
  • Free Energy (6)
  • Games Projects (2)
  • High Voltage (14)
  • Hobby Projects (30)
  • Household Circuits (2)
  • IC 555 Circuits (4)
  • Ignition Circuits (2)
  • Indicators (50)
  • Infrared (6)
  • Inverter Circuits (29)
  • Lights and Lamps (97)
  • Medical (8)
  • Meter and Tester Circuits (38)
  • Motor Driver (17)
  • New Circuits (56)
  • Oscillators (30)
  • Pets and Pests (5)
  • Power supply (81)
  • Protection Circuits (25)
  • PWM (8)
  • Remote Control (20)
  • Security and Alarm Circuit (48)
  • Sensors and Detectors (66)
  • Signal Processor (23)
  • Solar Controller Circuits (61)
  • SSR (3)
  • Temperature Controller (20)
  • Timer (25)
  • Transformerless (7)
  • Transmitters (12)
  • Tutorials (45)
  • UPS (2)
  • Voltage Regulators (57)
  • Water Sensor and Controller (29)
  • Home
  • Privacy Policy
  • Contact
  • Disclaimer
  • Copyright

© 2025 · Making Easy Circuits