/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.89 7,127
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,087
Card lock for cars Electronic Card Lock system for you vehicle. 2.86 6,000
Digital combination lock Digital combination lock with two 14013 ICs. 2.88 4,861
Double sensor Senzor activated by light and vibrations. 2.87 3,055
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,751
Electronic lock Electronic lock with 4022 octal counter. 2.88 3,851
Fire sensor Sensor that detects fire, hopefully not too late. 2.87 3,284
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,282
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.86 4,172
Light sensor Another light sensor that uses NE555. 2.84 3,476
Metal detector Another metal detector. 2.86 8,362
PIR sensor PYR, motion sensor activated by body head. 2.86 4,867
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,952
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,502

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