AVR Electronic lock
CodeLock is AVR based electronic combination lock. This security system use microcontroller AT90S2313 or ATtiny2313 as main chip. If the code is entered in the correct sequence, then after 1 second the relay and the electric striker (in the door) switch on for 1 second and then switch off again. You can modify the code through 3×4 matrix keypad. Default user code (1234) is set up with a jumper.
Each pressed key is immediately confirmed with one short beep. Two short beeps follow after entering the right user code. One long beep appears when entering the wrong user code. The keypad is blocked for 20 seconds for each incorrect action. User code is retained even in the event of a power failure. You can use a LED diode instead of a Beeper.
© Kripa PURI
AVR Lock
Project Documentation and Circuits
avr.4mg.com
Related posts:
- AVR Electronic Lock SmartCard4
The electronic lock SmartCard4 is Security system project based on AVR AT90S2313, similar chip with ATtiny2313. Rudi Slejkovec uses... - RFID Electronic Door Lock
The project goal is to build an electronic door lock based on Arduino and ID-20 RFID reader. This security system... - Phone Line controller PIC 16F84A
Did you wonder how to remote control from along distance? why don’t you try Phone Line controller. The device... - Interfacing Keypad and Microcontroller AVR
People still use 16-key keypad as input device for any embedded project. I could be used as code input... - AVR LCD Touchscreen
Is that possible build LCD Touchscreen project using AVR chip? Yes, you can do that. Evert Dekker has build...
Search terms:
reference for digital lock project
