Hello, I have recently bought a number of those cheap modules (which cost about 5GBP each) from China that are all over eBay at the moment. They're usually advertised as a 'Bluetooth to serial TTL module' or similar. It's a small PCB that contains a CSR Bluecore device and memory, integrated PCB foil antenna, and a four-pin header for 0V, 5V, Rx and Tx connections.
Here's one example: http://www.ebay.co.uk/itm/Serial-Bluetooth-RF-Transceiver-Module-rs232-TTL-/280696760008?pt=UK_Computing_Networking_SM&hash=item415ad4a6c8 I'm quite fond of them having the CSR device because I've worked with and modified CSR firmware in the past for a previous project. These modules all come with SPP (Serial Port Profile) firmware, but one thing to keep in mind is that despite many, many Chinese suppliers on eBay selling the same PCB, many come with different firmware. I've successfully used my Android app with modules I have with one particular firmware, but another firmware that came on the same PCB from an alternative supplier can't be connected to. However, CSR's Blueflash utility and a simple homebuilt parallel port / SPI interface means you could swap firmware between modules. Trev On Aug 8, 6:55 pm, cellurl <[email protected]> wrote: > Anyone know of a $10 bluetooth device that I can buy in low > quantities? For example something a phone could turn on/off? > > I need 2 remote switches. Just on and off. > > There are hacking options, but that seems last resort. > A: Butchering a BT-headset and sending/decoding DTMF. > > B: Butchering RemoteControlBluetooth cars... > > But I am hoping someone can point me to a super cheap BT slave device > or point me to a more appropriate group. > > Thanks for any leads! > cellurl -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
