/Schematics/Security devices

Title Short description Rate Download
Alarm with 4 sensors Very simple alarm with NE556 and 4 sensors. 2.88 7,037
Alarm with PIC microcontroller Some simple PIC based alarm. 2.87 6,022
Card lock for cars Electronic Card Lock system for you vehicle. 2.85 5,967
Digital combination lock Digital combination lock with two 14013 ICs. 2.87 4,792
Double sensor Senzor activated by light and vibrations. 2.86 3,024
Electronic combination lock with PIC microcontroller Electronic combination lock with PIC microcontroller and 4 access codes. 2.90 4,700
Electronic lock Electronic lock with 4022 octal counter. 2.86 3,810
Fire sensor Sensor that detects fire, hopefully not too late. 2.86 3,259
Knock-knock alarm Alarm, more of a sensor, that activates on door knocking sound. 2.91 3,232
Light activated alarm Turns alarm (buzzer) ON, when light hits the sensor. 2.85 4,121
Light sensor Another light sensor that uses NE555. 2.84 3,393
Metal detector Another metal detector. 2.84 8,214
PIR sensor PYR, motion sensor activated by body head. 2.86 4,825
SMS alarm - by Pance SMS Alarm witn GSM phone Ericsson T10. 2.86 6,898
Touch activated alarm v1 Activates alarm (buzzer) when someone comes close to the device. 2.90 9,407

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