thanks for the ideas....
Do you have any tutorial videos on the URS232A or any that related on serial communication??(could you share please)
is the looping of DTR(pin4) and DSR(pin6) , RTS(pin7) and CTS(pin8) can be ignore during the construction of their schematic??
is the schematic connection of Db-9 connection for male and female connector is the same??
i using pic16f877A the source is built successfully by using mplab hightech compiler and i burn the source in to the pic but the hardware doesn't work... what need to be modified form the source code...
i really need help in the source code of sending sms and displaying the LCD....
please help me....