Customized door lock system is a replacement to the traditional mechanical locks which most of the houses used earlier. This locking system using Arduino is a electro-mechanical device designed in a software with an ease for the user to set and reset the password of their own choice whenever necessary.
As we know that there is ever increasing demand for compact circuits and less complex wirings over the
board, a technological boon evolved for such demand is Printed Circuit Board (PCB). A PCB will mechanically
supports and electrically connects electronic components using conductive tracks, pads. These boards will have
minimal chances for short circuits, components on the board are fixed; another advantage is creation of multiple boards
using single design. Taking this technology forward to our everyday life, we implemented analog communication
laboratory circuit, Schmitt trigger.
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