The main aim of this project is to develop a gas leakage control and Auto dialing system. This system will detect any chances for a gas leakage from cylinder-based appliance (e.g. LPG cylinder). Usually fire occurs in a cylinder- based appliance due to leakage of gas through the gas pipeline. By using a gas sensor, the above reason can be detected in advance. With the use of an alarming system the user can be alerted about this. If the user is in a remote place GSM technology can be incorporated to alert the user. If gas leakage occurs, closing the gas outlet valve can control it. This can be achieved with the help of a stepper motor connected to the valve. Also by using an exhaust fan the leaked gas can be expelled out. The controlling operation on fan, stepper motor is done by the microcontroller. And GSM modem performs an auto dialing to a user.

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