Gps Tx/Rx

Discussion in 'The Projects Forum' started by SAYED, Nov 28, 2010.

  1. SAYED

    Thread Starter Member

    Mar 29, 2007
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    Hello ...

    can you help me about my idea to design gps unit .
    how to make gps as transmitter and get the date form it .

    thanks for you ...
     
  2. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    Just buy a Trimble GPS module.
     
  3. SAYED

    Thread Starter Member

    Mar 29, 2007
    14
    0
    note :
    our Tx is not connected to pc
    Rx is connected to pc

    i wnat to get data from Tx via satellite using Rx which is connected to pc


    thanks ..
     
  4. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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  5. SAYED

    Thread Starter Member

    Mar 29, 2007
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    my problem is how can i reseved the date for other gps .. which method should i use ??
     
  6. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    Get a GPS with a serial port. The clock data will be part of the NMEA data stream.
     
  7. SAYED

    Thread Starter Member

    Mar 29, 2007
    14
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    i am confusing , can you give me an overall idea ??
    which one gps for Rx and wich one for Tx ??

    thanks for you
     
  8. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    Yes you are. I have no idea what you want. Did you read and understand the NMEA link in my last message. Is this homework?
     
  9. SAYED

    Thread Starter Member

    Mar 29, 2007
    14
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    this is an idea for project..
    The idea of it is to make control room for traffic to reseve the data from car gps to know his speed and location ..etc
    I hope you understand what i mean..if understand give me overall idea
     
  10. wayneh

    Expert

    Sep 9, 2010
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    Do the vehicle drivers carry smart phones? There are many apps to accomplish exactly what you've described. Phone receives GPS position, sends it to internet, apps enable finding friends, tracking trucks, finding lost children, etc. etc.
     
  11. SAYED

    Thread Starter Member

    Mar 29, 2007
    14
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    i don't want to use internet i want to use only gps satlites
     
  12. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    GPS doesn't use the internet. It's a complex radio receiver with a microcontroller. Many have RS232 and almost all communicate NMEA.

    You can't build one from scratch, you can buy them for about $50
    http://www.sparkfun.com/categories/4
     
  13. wayneh

    Expert

    Sep 9, 2010
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    Huh? How are you planning on communicating to your control room?
     
  14. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
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    My guess is smoke signals.
     
  15. SAYED

    Thread Starter Member

    Mar 29, 2007
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    my friend, if i know why i should ask you? I want an idea if you have

    Thanks
     
  16. JoeJester

    AAC Fanatic!

    Apr 26, 2005
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