/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,068
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,045
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 5,980
Digital combination lock Digital combination lock with two 14013 ICs. 2.88 4,808
Double sensor Senzor activated by light and vibrations. 2.86 3,039
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.89 4,723
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,820
Fire sensor Sensor that detects fire, hopefully not too late. 2.85 3,269
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,251
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,143
Light sensor Another light sensor that uses NE555. 2.83 3,421
Metal detector Another metal detector. 2.84 8,272
PIR sensor PYR, motion sensor activated by body head. 2.85 4,841
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.86 6,926
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,450

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