Interfacing GPS with 8051 microcontroller

[Anjali]

Hi friend ,,can u suggest me some GPS module for interfacing with 8051/AT89s51…i am using keil software ..help me with the code too..

 

[Dexter]

 

 

http://www.futurlec.com/GPS.shtml

 

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GPS Module – EM-406A

[M.Khalid Ansari]

you can use SIM18 GPS module kit from SIMcom. Ihave used it. it works well.

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[Syed Aameer]

Anjali

                  Get NSK GPS kit with RS232 or iwave GPS kit..i have worked with them…

Just plug and Play……

 

 

 

[ehtesham khan]

ASALAM-O-ALIKUM…….

 

 

 

M KHALID ANSARI

 

                          I am doing a gps project and i am intrested to use sim18 gps module evb kit….but it is not avilable in the market….As you have already use it in your project…plz let me know from where it will be easily avaliable….Thanks

[marulz]

ehtesham khan I am also interested in GPS project but sim18 EVB Kit is not available . If u get any info about this Plz let me know… my Cell No is 0346-3208667 & i live in karachi as well..

[Amitava Thakur]

I bought the gsm modem from nsk..When i m connecting it to the hyper terminal i am nor receiving OK command on typing any AT command.

Plzz help..

[Amitava Thakur]

I bought the gsm modem from nsk..When i m connecting it to the hyper terminal i am nor receiving OK command on typing any AT command.

Plzz help..

[Amrith]

Hi Amitava Thakur,

 

First check whether your GSM modem is properly connected in Device Manager settings, if it is ok then configure the port settings as below. Alternate, try changing your serial cable.

 

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[Amrith]

Hi Amitava Thakur,

 

First check whether your GSM modem is properly connected in Device Manager settings, if it is ok then configure the port settings as below. Alternate, try changing your serial cable.

 

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[gaurav]

hi friends

im connecting gps modem to pc using hyperterminal.the problem is that in the GPGGA sentance some time im getting the latitude and langitude and some time im not,though thetime data is always received.

if im getting the latitude and longitude then i will receive it till im using it.but if i turn off the modem n start a new session i will not get latitude and longitude

though im receing the data every time.

could you suggest me what shoud i do

 

[Amrith]

hi gaurav,

there could be “hot swap” problem with the device or pc comport. repeat the test on other PC and tell the status.

[AJISH ALFRED]

 

Hi Amitava,

Do the settings on the hyperterminal as suggested by Amrith. If you want to check the serial cable, just short pin 2 and pin 3 of the DB9 connector using any wire or metal. Type something on the hyperterminal and you should receive the same characters as you type.

Also note that all the AT commands ends with enter key press, except some which require ctrl+z. I know you won’t miss it out, but still you aren’t getting any response from the device means the device is damaged!

[AJISH ALFRED]

 

Hi Gaurav,

I had the same experience with the gps module. The number of satellites my module can see at those situations were 1 or even 0. Check how many satellites your module can see. Also learn how many require for the accurate data from gps module. Also make sure you place your gps antenna outdoor and not in any shade or somewhere.

You know when you turn on the module, it won’t be having any data with it. I believe its the poor coverage that makes your module causing a delay to get the values after switched on. It will still transmit to the serial port, but only the valid data which it do have at that time.

[midhun]

the problem may be what AJISH ALFRED said. you should keep the module outside where no obstacle will come in between satellite and your GPS module…

TRY KEEPING YOUR MODULE OUTSIDE…….

 

 

ALL THE BEST

[Author]

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