Electronic Keys & Locks
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Electronic Mosquito Repellent Circuit
Mosquito repellent such as coils, mats, liquid vaporizers, and creams are frequently utilised in a variety of settings. They are,…
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One Transistor Electronic Code Lock System
This article presents a Electronic code door lock system using a transistor code lock circuit. We’ve already shown how an…
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Password Based Door Lock System using 8051 Microcontroller
The Password Based Door Lock System with the 8051 Microcontroller is a simple project that uses a secure password to…
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Password Based Door Lock System using 8051 Microcontroller
The Password Based Door Lock System with the 8051 Microcontroller is a simple project that uses a secure password to…
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iButton electronic lock Schematic Circuit Diagram
Since iButton DS1990A introduced in the market from Dallas Semiconductor (MAXIM), it has been used in many applications concerning security,…
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NIKOLA TESLA DRAWINGS DESIGNS ELECTRONIC ELECTRIC (PATENT)
Electrical engineer engineer engineer big inventor Nikola Tesla has prepared many drawings and detailed information (in English) is available. A…
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SIMPLE ELECTRONIC CIRCUITS DIAGRAMS
In terms of signals with frequencies over 20 kHz ultrasonic waves are ultrasonic waves or ultrasound call. The use of a 36 kHz or 40…
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EXPERIMENTS WITH DIJTAL DOORS
TTL (Time to live) is a mechanism that is designed to limit how long data lives in a computer or a…
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Hard-Wired Code Lock Schematic Circuit Diagram
Installations with restricted access are often protected using an access code. If you don’t have particularly demanding requirements regarding modifying…
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Electronic Touch Switch Schematic Circuit Diagram
Mechanical contacts have the disadvantage that they wear out. That is why it is practical to use an electronic ‘touch…
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