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| Search found 71 matches |
| Author | Message |
|---|---|
 Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
 Forum: General CCS C Discussion Posted: Tue Jun 12, 2012 5:54 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Thank you all for all your wonderful comments, I will try all your suggestions and post the results later. | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Tue Jun 12, 2012 1:39 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Hello,
The modem was sourced through www.taobao.com |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon Jun 11, 2012 9:42 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Ok, I will try to get the documentation or the link of the manufacturer. | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon Jun 11, 2012 4:48 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| ...sorry for multiple posting, my internet service is very slow now | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon Jun 11, 2012 4:40 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| I've concluded that princejude is hopeless, and that this thread is a colossal waste of time. For whatever reason, princejude doesn't even seem to be able to help himself. He withholds critical infor ... | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon Jun 11, 2012 4:37 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| I've concluded that princejude is hopeless, and that this thread is a colossal waste of time. For whatever reason, princejude doesn't even seem to be able to help himself. He withholds critical infor ... | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon Jun 11, 2012 4:28 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| I've concluded that princejude is hopeless, and that this thread is a colossal waste of time. For whatever reason, princejude doesn't even seem to be able to help himself. He withholds critical infor ... | |
| Topic: Car tracker using GPS and GSM with one hardware USART chip |
|
| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 08, 2012 5:42 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| The front view is here : http://tinypic.com/r/jq6fb5/6
The back view is here : http://tinypic.com/r/2mceuy9/6 |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 08, 2012 5:37 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Could you post a photo of your modem?
Here is the back picture of the modem that shows the MAX232:<a href="http://tinypic.com?ref=2mceuy9" target="_blank"><img src=" ... |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Wed Jun 06, 2012 3:00 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| you dont have the datasheet....
I don't have the datasheet. I bought it from China and they did not ship it with any datasheet. |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 01, 2012 9:28 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Do you have a data sheet for the hardware you are actually using?
I don't have the datasheet. You generally cannot connect your PIC directly to the Rx/Tx pins of another device if there is a MAX2 ... |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 01, 2012 9:27 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| Do you have a data sheet for the hardware you are actually using?
I don't have the datasheet. You generally cannot connect your PIC directly to the Rx/Tx pins of another device if there is a MAX2 ... |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 01, 2012 7:32 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| It's kind of late in the process to be telling us that your modem is equipped with an interface board isn't it??
Yes, you are right. But I thought that the interface board is part of the modem. ... |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Fri Jun 01, 2012 3:18 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| GSM ---- PIC
19 <---- 17 18 -----> 18 Hi John, This your GSM pins 18 and 19 refers to TC35 pins ? The modem I have here was fixed on small PCB with some components such as max232, DB9 se ... |
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| Topic: Car tracker using GPS and GSM with one hardware USART chip |
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| princejude Replies: 39 Views: 48467 |
Forum: General CCS C Discussion Posted: Mon May 28, 2012 10:14 am Subject: Car tracker using GPS and GSM with one hardware USART chip |
| ezfly wrote:
I may regret asking this, but can you post a schematic? My schematic is simple. I am testing the modem with a development kit (with 4MHz crystal). I connected the PIC MCU's Tx pin (PIN ... |
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