I am looking for the cheapest way to support bidirectional communication via Bluetooth SPP. Does anyone know why these chips are so expensive?
closed as off topic by Brian Carlton, Nick Alexeev, Dave Tweed, Olin Lathrop, embedded.kyle Nov 9 '12 at 15:51
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In mass production a BT chip costs less than 75 cents. The problem is none of the vendors will work with you, you need to find a module maker who can support you. In MP you can reach to 5$ level with module including antenna etc. good luck.
The key vendors to look at are CSR and BRCM. We use a Taiwanese module maker with one of their solutions. APMComm is the vendor, there are tons of others just look around.
We are currently having a similar problem. Here is what we discovered so far:
For small (e.g. prototyping) quantities eBay has quite a few modules available for as low as £5.