Peizoelectric Sensor Model For Digital Knock Door Lock Using Arduino Uno

Abstract

In general, the community still uses a simple key system. Its use in opening doors still uses conventional locks such as locking levers, sliding locks and rotating hinges. The use of keys which is widely used as a method of general security often experiences or frequently loses keys while traveling. This research is expected to improve convenience for users from manual systems to automatic systems, locking the door using a predetermined knock code. The digital key that is generated from the sensor when given a tap will enter through the Arduino minimum system Peizoelectrik sensor. The test results show that the knock code given to this system is related to the number of beats. The value of the interval time or the distance between each beat is stored in an Array data type that forms a certain rhythm / rhythm of beats used in the program. This knock interval value (knock code) will be stored in the microcontroller flash memory first. The beat in the system will start to work by making accurate intervals between the beats, if the rhythm of the beat matches what has been previously stored, the door opening system will be active.