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 […]
Keypad Lock Circuit using a Single IC
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 […]
Door Lock Circuit using Digital Code
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 […]
How to Make a Barcode Security Lock Circuit – Part1
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 […]
How to Make a Barcode Security Lock Circuit – Part2
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 […]
How to build a Infrared Remote Control Security Lock Circuit for Automotive Applications
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 […]