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8 posts

Wannabe Geek

Topic # 18345 7-Jan-2008 17:21
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I need to know about blue casting (bluetooth marketing devices) which are available in the market. now i intend to develop a blue casting device. so i need to know what exactly i should use like :

1.which bluetooth transmittor should i use
2.on which platform should i write the code for software

Actually my project is to develop a blue casting device let me elaborate clearly:

If i put a blue casting device in a mall it should be checking if any mobile is with in its range then immediately a sms would be going to the mobile asking the permission if he would like to receive sms. if the user clicks yes then again the promotional sms will be recived by the user.

So plz if anyone know about this project letme know hot to do this

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BDFL - Memuneh
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Reply # 103380 7-Jan-2008 17:33
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You will find out that this is not possible because the Bluetooth software on mobile phones do not return the mobile number just to preserve the user's privacy.

8 posts

Wannabe Geek

  Reply # 103396 7-Jan-2008 18:17
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So how are the companies developing these blue casting devices which we usually find in malls. How they are going to perform?


BDFL - Memuneh
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  Reply # 103931 10-Jan-2008 00:42
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I have done embedded development with a Bluetooth module from Blue Radios (  Good quality device with a simple UART interface and AT instruction set.  Being UART, you can use either a PC or a MAC or a Mobile PC or an embedded processor, whatever you fancy.

What you want to do is constantly search for devices and then do an object push to those devices.  Most phones will first ask the user if he/she wants to accept the object before accepting it, and is part of the protocol.  You do not have to develop that part of it.  (Users can also configure their phones to always accept or only accept from approved senders.)

All Bluetooth devices have a global unique address similar to an Ethernet MAC address.  This is the address you use to communicate with over Bluetooth, not the mobile number so as Freitasm said you will not get the mobile number for sending an SMS.  When a device is configured as discoverable, then the device will respond to discover broadcast messages and you will get the address.  If configured as not discoverable, then you will not get the address.  It is like the WiFi setting "disable SID broadcast" which hides the network.

There are companies with big budgets that have already developed such marketing tools.  It is easy to do, but there are a lot of subtle issues and you need good R&D engineering skills to do what you want to do.

Regarding your other post, you need to pay money if you want to get the Bluesoleil API.  It is not free.  If you use the Blue Radios module, then you do not need the API (or any Bluetooth stack) because it is a self contained unit.  You see, a USB Bluetooth stick only has the electronics for the radio but all the software to drive the radio (the stack) runs on the PC.  That is how they get the sticks to cost only $10 or so.  An embedded module like the one from Blue Radios consists of the radio hardware as well as the stack.  It costs about double, but it means that for embedded products you do not have to worry about the Bluetooth qualification process or running (and debugging) the stack in your product's processor.

You can never have enough Volvos!

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