/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.89 7,139
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,097
Card lock for cars Electronic Card Lock system for you vehicle. 2.86 6,007
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,865
Double sensor Senzor activated by light and vibrations. 2.87 3,061
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,756
Electronic lock Electronic lock with 4022 octal counter. 2.88 3,857
Fire sensor Sensor that detects fire, hopefully not too late. 2.87 3,286
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,284
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,182
Light sensor Another light sensor that uses NE555. 2.84 3,482
Metal detector Another metal detector. 2.86 8,376
PIR sensor PYR, motion sensor activated by body head. 2.86 4,871
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,956
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,509

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