/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,210
Alarm with PIC microcontroller Some simple PIC based alarm. 2.86 6,156
Card lock for cars Electronic Card Lock system for you vehicle. 2.86 6,037
Digital combination lock Digital combination lock with two 14013 ICs. 2.89 4,923
Double sensor Senzor activated by light and vibrations. 2.88 3,085
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.89 4,803
Electronic lock Electronic lock with 4022 octal counter. 2.90 3,901
Fire sensor Sensor that detects fire, hopefully not too late. 2.87 3,322
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.91 3,344
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,228
Light sensor Another light sensor that uses NE555. 2.86 3,538
Metal detector Another metal detector. 2.85 8,543
PIR sensor PYR, motion sensor activated by body head. 2.85 4,915
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 7,009
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,594

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