CELL PHONE BASED DTMF CONTROLLED GARAGE DOOR OPENING

CELL PHONE BASED DTMF CONTROLLED GARAGE DOOR OPENING SYSTEM. Prepared By: Fatima Dmaidi. Majd Darweesh. Noor Salman. SUPERVISOR: Dr. Kamel Subhi.

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

OUTLINES : �Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

Introduction : � The main objective of this project is to unlock a garage door by a mobile phone using a unique number entered through the keypad of the phone after entering the password given to the user. � This project is based on the concept of DTMF (dual tone multi - frequency).

OUTLINES : � Introduction. �Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

Overview: �Our system consists of DTMF decoder, Arduino, Gate driver, H-bridge, DC motor (PM motor) to achieve our goal.

OUTLINES : � Introduction. � Overview. �Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

Design :

OUTLINES : � Introduction. � Overview. � Design. �Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. �DTMF. � Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

DTMF : Ø DTMF is a common communication term for touch tone phones. 16 button keypad.

DTMF : Ø The frequencies generated on pressing different keys are shown in the table: DTMF 1209 frequency Hz 1336 Hz 1447 Hz 697 Hz 770 Hz 852 Hz 941 Hz 2 5 8 0 3 6 9 # 1 4 7 *

DTMF Decoder: Ø This DTMF decoder circuit identifies the dial tone from the telephone line and decodes the key pressed on the remote telephone.

DTMF decoder:

DTMF decoder connected to the cellular phone:

Output of DTMF decoder:

Settings of the phone connected with the system: 1. A SIM card must be inserted in the phone. 2. Automatic answering mode must be selected.

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. �Arduino. � H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

Arduino: �We �The used Arduino Uno in our project. Arduino Uno is a microcontroller board based on the ATmega 328. It has 14 digital input/output pins (of which 6 can be used as PWM outputs).

Output of the Arduino : 1 3 2

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. �H-Bridge. � DC Motor (PM Motor). � Results. � Future work.

H-bridge and gate drive:

Pulses from Arduino Output of ir 2110

Vavg 0 Speed distance Vavg=(0. 75*Vdc-0. 25*Vdc )/T

Vavg=(0. 75*Vdc-0. 25*Vdc )/T

� vvv

Vavg 0 Speed Distance Vavg=(0. 25*Vdc-0. *Vdc )/T

�VEDIO

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. �DC motor (PM motor). � Results. � Future work.

DC Motor (PM motor ) :

OUTLINES : � Introduction. � Overview. � Design. � Flow chart of the project. � DTMF. � Arduino. � H-Bridge. � DC motor (PM motor). �Results. � Future work.