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Recent content by Naveed_eng

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    Using Latitude and Longitude

    Dears i m doing final yr prjct.. i want to calculate the distance between two latitude and longitude.... for this i found this fomula Haversine formula: R = earth’s radius (mean radius = 6,371km) Δlat = lat2− lat1 Δlong = long2− long1 a = sin²(Δlat/2) + cos(lat1).cos(lat2).sin²(Δlong/2) c =...
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    What are the newest GPS applications?

    hello dears..i m working on my final year project which is GPS based tracker.. i need to include some new applications in it...what can i do new wid it... plZ guide me, thX in advV
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    mobile control security system

    sms controller alarm schematic Hello Dears... i m using T290 as GSM modem with 89c51... can any one provide me ckt diagram to connect my cell phone with controller.. thx in adv
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    problem in GSM interfacing with 89c52.

    hello ckshivaram... thx 4 rply.. dear hv u ever interfaced T290 or any cellphne with 89c52 or any controller... if u have then can u send me ckt diagram pLzz.. bcz i also hv tried the method which u told, its nt working.... my id is: coolnaveed1@hotmail.com
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    problem in GSM interfacing with 89c52.

    I m using 89c52 to interface it with sonyericson T290i mobile... i tested mobile at hyperterminal..it is working. and supports AT commands. i know that max232 IC will be used in between mobile and microcontroller... but i dont know what connections should be make in DB9 connector of mobile with...
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    Interfacing 89c52 to cell phone(T290i)

    interfacing of mobile with 89s52 Dear MAK1, thanks 4 rply... i checked MAX datasheet.. i dun have prb about MAX. i have prb in connections between serial DB9 connector and MAX to mobile.... which pin of DB9 should b used for which purpose here?
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    [SOLVED] Extracting from GPS with 8051

    protocol for extracting data from nmea sentences send the data from GPS serially to Rxd pin of 8051.. use interrupts, then store the data temporarly in RAM using pointers... then compare the characters G,P,G,L,L when all these characters are comming consequently.... then store the data in RAM...
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    Interfacing 89c52 to cell phone(T290i)

    t290i diagram Helllo deARsss... any reply plZZ??
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    Interfacing 89c52 to cell phone(T290i)

    t290i interface cable diagram Dears... i have some prblms in interfacing UContoller with mobile.... i tested my mobile at hyperterminal..it is ok.... but now i dont know the connectivity of mobile with microcontroller... in between of them serial port (DB9) connector and MAX232 will b...
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