07-12-2012, 04:30 PM
CELLPHONE OPERATED HOME AUTOMATION SYSTEM.
CELLPHONE OPERATED HOME.pptx (Size: 258.54 KB / Downloads: 73)
Introduction
Dial your number using DTMF phone or Cell phone from anywhere in the world and remotely turn on/off any of the 8 relays.
The MCU on the interface senses Telephone ring,
Automatic telephone pick up, and line hang up, displays information on a 16x2 LCD module and
controls the relay switching
Features
• Outputs - Relays x 8
• Fully microcontroller based interface using AT89S51.
• Auto line pick up.
• On Board flash EEPROM that stores system Parameters and password and relay status (no require battery back up)
• User settable password for security.
• 16x2 Line LCD module to display Status and Error Message.
• Acknowledgement tone out put for the user.