/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.87 7,169
Alarm with PIC microcontroller Some simple PIC based alarm. 2.84 6,115
Card lock for cars Electronic Card Lock system for you vehicle. 2.84 6,014
Digital combination lock Digital combination lock with two 14013 ICs. 2.86 4,882
Double sensor Senzor activated by light and vibrations. 2.85 3,070
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,773
Electronic lock Electronic lock with 4022 octal counter. 2.87 3,875
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,298
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.87 3,306
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.84 4,197
Light sensor Another light sensor that uses NE555. 2.83 3,499
Metal detector Another metal detector. 2.85 8,430
PIR sensor PYR, motion sensor activated by body head. 2.85 4,890
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.85 6,970
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.88 9,535

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