/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.89 7,012
Alarm with PIC microcontroller Some simple PIC based alarm. 2.87 6,005
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 5,963
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,781
Double sensor Senzor activated by light and vibrations. 2.86 3,016
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.91 4,693
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,805
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,252
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.91 3,225
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.86 4,106
Light sensor Another light sensor that uses NE555. 2.85 3,371
Metal detector Another metal detector. 2.85 8,186
PIR sensor PYR, motion sensor activated by body head. 2.86 4,814
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,887
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.91 9,378

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