How to "System Monitoring Parking with Delphi "

[wawan69enjoy1]

Introduce my name wawan  ;D
sorry in advance I want to ask how to design "System Monitoring Parking with Delphi "
here im using ATMEGA 8535 and sensor Limit Switch at some locations, and how to make the sensor can be read in notebook use delphi?
im confused design hardware to be used

LIMIT SWITCH or IR -> SIGNAL CONDITIONER ->MICROCONTROLLER-> PC/NOTEBOOK -> DISPLAY

Thanks you and regrat for master  

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