/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.89 7,120
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,085
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 5,999
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,858
Double sensor Senzor activated by light and vibrations. 2.87 3,055
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,750
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,850
Fire sensor Sensor that detects fire, hopefully not too late. 2.87 3,284
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,279
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,170
Light sensor Another light sensor that uses NE555. 2.84 3,469
Metal detector Another metal detector. 2.86 8,353
PIR sensor PYR, motion sensor activated by body head. 2.86 4,865
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,951
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,497

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