/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,032
Alarm with PIC microcontroller Some simple PIC based alarm. 2.87 6,014
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 5,965
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,787
Double sensor Senzor activated by light and vibrations. 2.86 3,023
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,698
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,808
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,256
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.91 3,230
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,116
Light sensor Another light sensor that uses NE555. 2.85 3,382
Metal detector Another metal detector. 2.84 8,202
PIR sensor PYR, motion sensor activated by body head. 2.86 4,821
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.87 6,895
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,399

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