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PIC16f877 to make modem call a number

dean harris

Hi am trying to find out the required AT command set for a microcontroller to connect through rs232 to a modem and call a number. i can do so with hyperterminal with ATDT then number. is this sufficient for the pic to send this.

With AT set do i need to ECHO (E1)? Set Baud rate?
Set Asyncronous(&Mn)

Any HELP please

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  • 0 in reply to Per Westermark

    Hi thanks for your reply.

    When i send ATDT then number followed by return stroke(using pic), The modem doesn't respond. Therefore hyper-terminal must be setting or sending more data. To make a connection in hyperterminal i have to set baud rate to 9600 and hardware to none. So do i need more AT commands??

    Please help

Reply
  • 0 in reply to Per Westermark

    Hi thanks for your reply.

    When i send ATDT then number followed by return stroke(using pic), The modem doesn't respond. Therefore hyper-terminal must be setting or sending more data. To make a connection in hyperterminal i have to set baud rate to 9600 and hardware to none. So do i need more AT commands??

    Please help

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