/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,104
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,071
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 5,995
Digital combination lock Digital combination lock with two 14013 ICs. 2.88 4,844
Double sensor Senzor activated by light and vibrations. 2.87 3,049
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,743
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,840
Fire sensor Sensor that detects fire, hopefully not too late. 2.87 3,279
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,270
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.86 4,166
Light sensor Another light sensor that uses NE555. 2.84 3,459
Metal detector Another metal detector. 2.86 8,331
PIR sensor PYR, motion sensor activated by body head. 2.86 4,858
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,946
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.91 9,484

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