Nowadays, indoor human localization plays an important role in security system, smart house and health-care monitoring. There are many technologies for indoor human localization have been developed in past decades. The application is usually based on WI-FI, GPRS, infrared RFID, bluetooth, ultrasonic sensors. Every technology has its own advantages and limitations. Capacitive sensors are considered in this project due to their low cost, low power consumption and effective sensing. The purpose of this research project is to design a long range, low cost indoor human localization with a front-end interface of a capacitive sensor. The circuit for this project was designed by the previous researcher.