• Snehal Kurekar
• Harshal Kamley
• Pranali Kharbade

Keyless entry has been a luxury whose availability is confined primarily to vehicles. The cell phone security system takes this idea of keyless entry and transforms it into a convenient, versatile security system that utilizes cell phone technology network. By DTMF technology, the Rolling shutter can be lock and unlock. The system also has the ability to provide feedback to the user regarding the state of the system. By combining the mobility of this telecommunication medium with microcontrollers, the system achieves a secure, convenient, and automated form of security for a place of residence. The system will allow a user to use their cell phone and send code to lock or unlock the shutter by touching the particular number buttons on cell phone keypad for LOCK/UNLOCK the shutter through GSM module. Once the system verifies the code send through GSM module and if the code matches successfully, the system will automatically lock/unlock the door. This automation introduces a form of secure, keyless entry into a residence along with the convenience of a fully responsive security system monitor.

Keyless entry, DTMF technology, GSM module, the Rolling shutter, microcontroller

"Automatic Rolling Shutter with Internal Locking System using GSM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org), ISSN:2349-5162, Vol.5, Issue 5, page no.65-70, May-2018, Available :http://www.jetir.org/papers/JETIR18IC015.pdf

"Automatic Rolling Shutter with Internal Locking System using GSM", International Journal of Emerging Technologies and Innovative Research (www.jetir.org | UGC and issn Approved), ISSN:2349-5162, Vol.5, Issue 5, page no. pp65-70, May-2018, Available at : http://www.jetir.org/papers/JETIR18IC015.pdf