/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,085
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,054
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 5,986
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,816
Double sensor Senzor activated by light and vibrations. 2.86 3,041
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,729
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,826
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,274
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,256
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,153
Light sensor Another light sensor that uses NE555. 2.83 3,428
Metal detector Another metal detector. 2.84 8,292
PIR sensor PYR, motion sensor activated by body head. 2.86 4,845
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.86 6,931
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,466

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