/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,196
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,136
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,029
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,894
Double sensor Senzor activated by light and vibrations. 2.86 3,076
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.89 4,783
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,882
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,308
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.88 3,323
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.84 4,215
Light sensor Another light sensor that uses NE555. 2.83 3,513
Metal detector Another metal detector. 2.85 8,491
PIR sensor PYR, motion sensor activated by body head. 2.84 4,899
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.85 6,990
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,569

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