/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.89 6,998
Alarm with PIC microcontroller Some simple PIC based alarm. 2.87 5,993
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 5,956
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,773
Double sensor Senzor activated by light and vibrations. 2.87 3,010
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.91 4,689
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,800
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,249
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.91 3,215
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.86 4,090
Light sensor Another light sensor that uses NE555. 2.86 3,361
Metal detector Another metal detector. 2.85 8,174
PIR sensor PYR, motion sensor activated by body head. 2.86 4,809
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,878
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.91 9,366

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