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In this wonderful world, various robots are being made for various purposes. Every robot circuit performs individual tasks assigned to it. In this paper, a simple Robot is designed to detect and to inform the presence of human with a new approach. In this system, inputs are taken through an Ultrasonic Sensor, a PIR sensor and an array of IR Sensors. Ultrasonic and IR Sensors are there to detect the path and direct the Robot and PIR Sensor is to detect Human presence. RF transmitter is present to transmit the information of human presence and through the receiver circuit, information is received. After receiving the information, the receiver immediately gives output which turns the buzzer/ alarm and the display ON. A program has been written and executed for the said purpose using AVR Microcontroller. The hardware implementation is made quite simply and cost effectively. The experiments are observed deeply and the results show that the system provides an efficient way for the said purpose.

An Approach to Design a Simple Human Detecting Robot for Cost Effective Home Security System as well as Various Rescue Missions