/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,194
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,134
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,028
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,893
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 4,780
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,881
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 3,512
Metal detector Another metal detector. 2.85 8,484
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 6,986
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,566

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