i am working on a project that requires me to send an SMS to 8051 micro controller,i want use USB modem from huawei model E160E,HSDPA USB stick,is there any way i can achieve this with out using the computer for interfacing
i am working on a project that requires me to send an SMS to 8051 micro controller,i want use USB modem from huawei model E160E,HSDPA USB stick,is there any way i can achieve this with out using the computer for interfacing look at the offerings from FTDI
Erik
That would require a USB Host...
look at the offerings from FTDI
Andrew Neil That would require a USB Host..
which is, indeed an offering from FTDI
Quite so: www.ftdichip.com/.../VNC2.htm www.ftdichip.com/.../VNC1L.htm
But the OP needs to be clear that he needs one of their Host products - not a simple Slave device.
thanks for the help dear friends,but it may take me longer now to finish the project as i donot have these products in my area as it needs shipping,now is there a way i can use phone with in built modem, how? any reference of the circuitry diagram connection? thanks
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It's possible - but not advisable.
If you want to do this, you are going to have to get serious about googling for the necessary information - judging from the questions so far, that does not seem to be your strong point?
www.lmgtfy.com
A far better idea would be to use a proper GSM modem or module which is specifically designed, documented, and supported for this type of application
http://www.keil.com/forum/17788/
thanks dear,i am going to use gsm modem now,and think block diagram will be GSM modem to MAX232 to at98c51,can you help me with circuity diagram, thanks
There must be literally thousands of cicuit diagrams on the web showing RS232 connection to an 8051 in general, and to a modem in particular.
It has been discussed very many times on this very forum - use the 'Search' box.
Study the documentation for your chosen modem to check for any specific requirements.
if you need help me with circuity diagram, you are already lost.
sinmce you ask this I see a need to tell you "a wire/trace is not a wire" it is a series of inductors with capacitors liberally spread along it.
if you do a willy-nilly layout (or even worse a "flying lead circuit") it will not work.
It would certainly be possible to fling together a GPS module, low-end 8051, and GSM Modem using "flying leads" and have it "work" (sic) - it can all be done with low-speed RS232 (or logic-level equivalent)...
eg, look at the photos here: msmvps.com/.../SerialPort-_2800_RS_2D00_232-Serial-COM-Port_2900_-in-C_2300_-.NET.aspx