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Research Article Open Access
The paper illustrates designing of a system which comes to the aid of the physically challenged people for example those who are blind, those with stroke, hands or legs paralysis and all forms of physical disabilities. Its use can also extend to the young and very old members of a family. This is an inter-processor communication system whereby the parameters and gadgets of a bedroom can be monitored and controlled from another room. The parameter is the room temperature while gadgets are the lights, fan and alarm. Status of any of these can be checked using the QUERY feature. The system also includes a PC which can be connected by the paralysed member, depending on the level of paralysis, so that he/she also can be able to control these features from his/her bed. The PC is equipped with a user friendly graphical user interface designed using C# while at the other end control and monitoring is achieved using switches, keypad and LCD display. Another interesting feature is that when there is some power cut the status of the system is preserved by incorporating an EEPROM such that last status is reloaded on system start up. Processor to processor communications is achieved using zigbee technology and the microcontrollers used are the PIC16F877A and LPC2148.
Monitor and Control, zigbee, PIC16F877A, Query, LPC2148, LM35, 24LC04B EEPROM., Cellular Communication