Circuit Lake

Electronic Project and Circuit Collection

Security System Related Resources


Ultrasonic Security System

June 29, 2012 By: admin Category: AVR, Microcontroller, Security System No Comments →

Ultrasonic Security Alarm

This portable security system is built based on Atmega644 microcontroller. It can detect intruders based on their physical presence. The system uses URM37v3.2 ultrasonic sensor which is connected to MCU through rs232 serial communication. To rotate sensor for wide coverage range, the system is equipped with Parallax servomotor. For user interface, there are LCD and […]

M16C-Based Access Control System

June 11, 2012 By: admin Category: Microcontroller, Project, Renesas, Security System No Comments →

Access Control Security System

The goal of project is to build M16C powered access control system that could be used as a stand alone locking solution for remote installations or locations where cost of installation was a major constraint. The security system solution consists of an industry standard proximity card reader interfaced to an M16C62P microcontroller. The locking mechanism […]


AVR Security Keypad Lock

February 09, 2012 By: admin Category: AVR, Control, Microcontroller, Project, Security System No Comments →

AVR Basic Keypad Lock System

The Security Keypad Lock Project is a basic access control system based on ATtiny2313. It can be modified to protect just about anything. The “Code Lock” ability will allow the rightful user to deploy the platform to any property that requires simple password-protection.

Combination Lock for Home Door

July 15, 2011 By: admin Category: Microcontroller, PIC, Project, Security System No Comments →

Keyless door lock combination DIY project

The project shows you how to build a combination lock for your home door using PIC16F84 MCU and electro-magnetic lock. A 4×4 keypad, located outside the door, is used to enter key combination. The master combination will open the door, as well as allow programming of up to four transient combinations, the illumination duration, and […]