/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,039
Alarm with PIC microcontroller Some simple PIC based alarm. 2.86 6,027
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 5,971
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,792
Double sensor Senzor activated by light and vibrations. 2.86 3,027
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,708
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,812
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,259
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.90 3,235
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,124
Light sensor Another light sensor that uses NE555. 2.84 3,398
Metal detector Another metal detector. 2.84 8,223
PIR sensor PYR, motion sensor activated by body head. 2.86 4,830
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.86 6,900
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,418

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