/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,206
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,145
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,031
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,908
Double sensor Senzor activated by light and vibrations. 2.86 3,081
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.89 4,794
Electronic lock Electronic lock with 4022 octal counter. 2.88 3,891
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,313
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,331
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.84 4,222
Light sensor Another light sensor that uses NE555. 2.84 3,526
Metal detector Another metal detector. 2.84 8,509
PIR sensor PYR, motion sensor activated by body head. 2.84 4,905
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.85 7,000
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.87 9,577

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