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OPEN AT V2.00
Updated : February 17th, 2003

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Phone Display on I2C LCD Sample application description

I.      Changes
II.     Application description



   
I - Changes
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* 03/02/17  -   V2.00
  Initial revision.


II - Application description
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 This application uses a standard LCD plugged on a I2C PCF8574 IO expander, to
display informations, such as the current operator name, and the remote party
phone number on an incoming call.

 First it opens the I2C bus and set-up the LCD in order to display further
informations, according to the product type. Then it sends the AT+COPS command
to get the operator name. This name is displayed on the LCD, and cleared if the
application receive a +WIND: 0 indication.

 On a RING unsolicited indication, the application sends the AT+CLCC command to
get the remote party phone number, and display it on the LCD. At the end of
call (with ATH command or +WIND: 6 indication), the number is cleared, and the
operator name is displayed again.