/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,063
Alarm with PIC microcontroller Some simple PIC based alarm. 2.85 6,042
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 5,977
Digital combination lock Digital combination lock with two 14013 ICs. 2.88 4,804
Double sensor Senzor activated by light and vibrations. 2.86 3,035
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.89 4,718
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,818
Fire sensor Sensor that detects fire, hopefully not too late. 2.85 3,266
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.89 3,247
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,135
Light sensor Another light sensor that uses NE555. 2.83 3,412
Metal detector Another metal detector. 2.84 8,252
PIR sensor PYR, motion sensor activated by body head. 2.85 4,836
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.86 6,923
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.89 9,443

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