REMOTE APPLIANCE CONTROL THROUGH
SMS
Now a day’s most of the systems are automated in order to face new challenges and achieve present day requirements. Automated systems have less manual operations, so that the flexibility, reliabilities are high and accurate. Hence every field prefers automated control systems especially in the field of electronics.
GSM (Global System for Mobile communications) is an open, digital cellular technology used for transmitting mobile voice and data services. Here we are using it only for transmitting and receiving the messages. GSM wireless data module is used for remote wireless applications, machine to machine or user to machine and remote data communications in many applications.
The theme of the project is to control the remote appliances through SMS, because in some cases we have to access some devices even though we are not presence. At that time this concept is very useful to control the devices. To implement this we have to interface one GSM module to microcontroller. Initially we need to interface the appliances that we need to control remotely to the microcontroller. If we want to control the appliances without we present in the region we need to send a Pre-defined message to the GSM which is included in the program. The message that we sent is collected serially by the microcontroller. When a message is received from the GSM, the microcontroller displays that message on LCD and will do the corresponding operation for that number like switching the devices ON or OFF. The microcontroller sends a reply message to the user number which is also a Pre-defined one stating which appliance got activated and simultaneously displays it on the LCD. We can connect as many appliances as we want and can control those using GSM.
REQUIREMENTS:
HARDWARE REQUIREMENTS:
- AT89S52
- GSM MODULE
- 16X2 LCD
- AC BULB
- RELAY
- DC MOTOR
SOFTWARE REQUIREMENTS:
- PROGRAMMING IN EMBEDDED C
- KEIL C COMPILE
- ISP PROGRAMMER
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