The project aims in designing robot for patrolling which moves towards the sound using sensors and Arduino NANO. This project makes a use of four Sound sensors which are attached to the four sides of robot which is used to detect the sound from surroundings. DC motors along with l293d driver is used to moves and change the directions of robot. . Esp32 camera module is uses for sending the alert mail through wi-fi.   The main controlling device of the project is Arduino NANO. ESP8266 wi-fi module , four sound sensors and DC motors along with L293d motor driver is interfaced to the Arduino Nano. When the sound sensors detect the sound this data process to the Arduino Nano then Arduino nano will move the robot towards the sound and  also sending alert mail  to the registered mail ID through ESP8266 WI-FI module. To achieve this task arduino nano loaded program written in embedded C language.  

  The Major building blocks of this project are:

• Arduino Nano.
• DC motor with L293D motor driver.
• Four sound sensors.
• ESP8266 WI-FI module.
• Rechargeable Battery.

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