/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,185
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,128
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,024
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,887
Double sensor Senzor activated by light and vibrations. 2.86 3,073
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,777
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,880
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,304
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.88 3,318
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.84 4,211
Light sensor Another light sensor that uses NE555. 2.83 3,508
Metal detector Another metal detector. 2.85 8,461
PIR sensor PYR, motion sensor activated by body head. 2.84 4,898
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.84 6,980
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,550

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