Pic18F4550 + SIMCOM SIM900D GSM/GPRS

Results 1 to 39 of 39

Threaded View

  1. - 15th July 2012, 15:04 #6
    ScaleRobotics's Avatar
    ScaleRobotics
    ScaleRobotics is offline Prolific Poster
    Join Date
    Feb 2006
    Location
    Gilroy, CA
    Posts
    1,530

    Default Re: Pic18F4550 + SIMCOM SIM900D GSM/GPRS

    I still think you may need to use a max232 between the PIC and the device as you have mentioned the device works when connected directly to a PC.
    if that is the case,

    You can invert the comms for the pic18f4550. This will make it possible to talk to a modem without a rs232 chip: http://www.picbasic.co.uk/forum/showthread.php?t=10361
    Last edited by ScaleRobotics; - 15th July 2012 at 15:13.
    http://www.scalerobotics.com
« Previous Thread | Next Thread »

Members who have read this thread : 0

You do not have permission to view the list of names.

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts

Forum Rules