I recently got one of these cheap chinese TTL to Bluetooth transceivers.
http://gb.suntekstore.com/wireless-bluetooth-transceiver-module-rs232-||-ttl.html
I got mine off ebay delivered for under US$7. The seller unfortunately didn't have a pinout diagram or any real info about the module (or maybe couldn't understand enough English to work out what I was asking).
I figured that all of them on the market are probably the same design so it shouldn't be a big deal.
Luckily I was right. The best resource I found was this:
http://www.egochina.net.cn/e-shop/ebay/datasheet/Bluetooth_Module_L6.rar
A number of diagrams, manuals and pieces of software in that archive.
The only problem is they are all windows specific.
The Ubuntu Bluetooth applet let me see and pair with the device, but no clue on how to use it.
Time to learn a little more about the Linux bluetooth stack.
Ok so we can see it from the command line and see it's address, it's the only thing found.
Most of the other diag tools didn't return any useful info.
Eventually I found the following to work.
At that point I could talk to my MCU over bluetooth!
http://gb.suntekstore.com/wireless-bluetooth-transceiver-module-rs232-||-ttl.html
I figured that all of them on the market are probably the same design so it shouldn't be a big deal.
Luckily I was right. The best resource I found was this:
http://www.egochina.net.cn/e-shop/ebay/datasheet/Bluetooth_Module_L6.rar
A number of diagrams, manuals and pieces of software in that archive.
The only problem is they are all windows specific.
The Ubuntu Bluetooth applet let me see and pair with the device, but no clue on how to use it.
Time to learn a little more about the Linux bluetooth stack.
hcitool scan Scanning ... 00:19:5D:24:B7:63 OBDII
Ok so we can see it from the command line and see it's address, it's the only thing found.
Most of the other diag tools didn't return any useful info.
Eventually I found the following to work.
sudo rfcomm bind /dev/rfcomm0 00:19:5D:24:B7:63
picocom -b 38400 /dev/rfcomm0
At that point I could talk to my MCU over bluetooth!
