/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,174
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,118
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,021
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,882
Double sensor Senzor activated by light and vibrations. 2.85 3,072
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,775
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,877
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,302
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.88 3,310
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.84 4,204
Light sensor Another light sensor that uses NE555. 2.83 3,501
Metal detector Another metal detector. 2.85 8,437
PIR sensor PYR, motion sensor activated by body head. 2.84 4,894
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.84 6,975
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,544

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