(I posted this from a current email so others can benefit from the conversation - Jason)
Hi,
I have a Serilizer WL with the bluetooth module. I have followed the instructions on your video: 'Establishing Communication via Bluetooth'. I can pair the serializer with my computer. However when I attempt to communicate with HyperTerminal, I am able to establish a connection, but cannot get any further, the 'NACK' does not appear and I am unable to recieve anything back from the Serializer. Looking at the COM port I can see that my computer is sending data to the serializer , but is not recieving anything back. I have also tried your RoboticsConnection solution which contains the SerializerServices and TraxsterDriveService. This builds correctly, and it continuously loops through the command line process to establish a connection to the Serializer, when it attempts each connection, the Bluetooth module's green 'connection' LED flashes away each time it attempts to connect, which indicates it is using the correct port, however it is unable to establish a connection. It appears to me that there is some sort of hardware fault with the serializer or the bluetooth module.
I have tried using a bluetooth doogle on my computer instead of the in-built bluetooth device, however this has achieved the same results.
Any suggestions?
Cheers,
Greg
Hi Greg,
Hmmm.
First of all, make sure the jumper is installed between the two jumper pins that say ‘Remove to use TTL Serial’. If that isn’t installed, you’ll need to install one.
It’s possible that it was left of during manufacturing, or that it slipped of during shipping. Without this, the PIC chip on the Serializer can’t communicate w/ the Serial modules.
Another thing you might want to try is to:
1.) Power up the Serializer
2.) Go into your Bluetooth Manager (icon in lower right system tray) and go to ‘Explore My Bluetooth Devices’.
3.) Right click on the eb100 module, and select ‘Connect’.
4.) Watch the green led on the module to see if the connection is successful, as well as watch the eb100 icon to see if it turns green (or has a green icon above it) to show connection.
5.) If a connection is made, right click on the eb100 module, and select ‘Disconnect’
6.) Now try to connect to the Serializer via Hyperterm (and make sure the Hyperterm setting match what’s in the Serializer User Guide)
7.) I've found that on my laptop, if you don't do the initial connection to the Serializer Bluetooth module via the Bluetooth Manager, Hyperterm has a hard time opening the COM port up.
It sounds to me like the jumper is missing, or you don’t have the Hyperterm settings (ASCII Setup, or baud rate) set up correctly (see User Guide).
Also, the Bluetooth module is configured to communicate at 19200, so make sure you’re configured to use that baud rate.
Then, let us know how that works out…
Best Regards,
Jason
Hi Jason,
I have inserted the ‘Remove to use TTL Serial’ jumper as instructed and this has fixed the problem. I can now communicate with the Serializer. Thanks for your assisstance.
Regards,
Greg,
Excellent! Glad to hear you're up and running!