Bluesmirf Gold - crashing arduino after sending arround 200bytes

Projects Networking, Protocols, and Devices
1

Hello from berlin,

Iam currently working on a mobile robot with wavefront algo for
Local arduino navigation as fallback and slam navigation with external calculation power.
I will release that piece of code later, because that will be usefull for the community i think.

About the problem:
Currently iam using the bluesmirf for data connection between arduino and my local pc.
Everything was fine at the first 3 weeks, but right now the module drives me crazy.
After etabslihing the connection and transmitting some bytes, the bt module inclusive arduino
crashes.

I can reproduce this on 2 different arduino boards (mega & uno) with any kind of serial libary and code.
That means, no one needs to ask for the code, because its not code related.

I try to factory reset without changes... So i can get into cmd mode of bt module, configuring stuff without any problem, but when i connect it to arduino it is going to crash.

Any ideas what i can do? How to proceed with debugging?
Or is the module just broken and should i going to buy a new one?
Anyone with the same problem?

Thanks for sny suggestion,

2

ive got a new situation.
After resetting the module again + changing the password + deinstallation of driver on windows, i tryed to reconnect the whole thing.
Reconnection works without any problem, now only the connection is lost after couple of bytes transfered.
The whole arduino is not going to crash complete.

Before: Green light still appears but nothing happen anymore on the complete arduino board.
Now: Disconnection (red light blicking again), arduino still works.

I already figured out before that theyre is a problem when sending continue-data without delay, see:
https://forum.sparkfun.com/viewtopic.php?f=13&t=30439

so at the end, completely disconnect, reset and reinstall on my local did solve it.
what a strange thing.