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Car anti theft wireless alarm.
This FM radio-controlled anti- theft alarm can be used with any vehicle having 6- to 12-volt DC supply system
---195
Digital Lock
A Simple, But high Effective Circuit.
---967
Door Alarm Circuit
This is simple ane aesy door alarm circuit based on CD4001 CMOS.
---937
Electronic combination lock with PIC
This is a electronic combination lock to use with an outdoor gate
---2
Electronic lock
The heart of this circuit is a 4022 octal counter
---1
Electronic safety-lock with telecard as key
This safety-lock can be work with up to 8 different telecards (empty or not) as access keys. Each telecard can be registered or unregistered from the system, by press the corresponding button.
---47
House Security Device
A PIC has been used to help increase the security of the house by turning on the two light bulbs upstairs
---332
Programmable Digital Code Lock
Programmable Digital Code Lock
---200
Proximity Security System
RFID-based proximity security system for use with Cornell Identification cards, which have been RFID-embedded since fall of 2003. The idea for this project was sort of spawned from our general interest in RFID technologies and the near-simultaneous
---907
REVISED Laser Beam Alarm
It uses the Cheap \"Laser Pointers\" (Slightly Modified) as the laser light source and they are found in \"Dollar stores\" for around One or Two Dollars. Since they are visable light, setup is easy as you can see where to aim the Laser beam.
---952
Theft preventer alarm
This circuit utilising a 555 timer IC can be used as an alarm system to prevent the theft of your luggage
---153
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