/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,150
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,107
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 6,011
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,872
Double sensor Senzor activated by light and vibrations. 2.85 3,065
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,763
Electronic lock Electronic lock with 4022 octal counter. 2.88 3,866
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,292
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.88 3,289
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,193
Light sensor Another light sensor that uses NE555. 2.83 3,493
Metal detector Another metal detector. 2.85 8,408
PIR sensor PYR, motion sensor activated by body head. 2.85 4,882
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.85 6,964
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,521

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