/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,217
Alarm with PIC microcontroller Some simple PIC based alarm. 2.86 6,158
Card lock for cars Electronic Card Lock system for you vehicle. 2.87 6,041
Digital combination lock Digital combination lock with two 14013 ICs. 2.90 4,929
Double sensor Senzor activated by light and vibrations. 2.89 3,087
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,812
Electronic lock Electronic lock with 4022 octal counter. 2.90 3,913
Fire sensor Sensor that detects fire, hopefully not too late. 2.88 3,323
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.92 3,346
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.86 4,233
Light sensor Another light sensor that uses NE555. 2.87 3,544
Metal detector Another metal detector. 2.86 8,555
PIR sensor PYR, motion sensor activated by body head. 2.86 4,920
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 7,012
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.89 9,599

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