Xbee - in MicroPython communication by BLE (bluetooth) error ENOBUFS

XBee & XBee Gateway XBee - DigiMesh
, , , ,
1

Hi, I have a problem with the stability of sending data from Xbee via bluetooth (to android application).
In MicroPython in the main loop I have a simple code sending 40 characters (the program sends 5600 characters per second):

try:
    relay.send(relay.BLUETOOTH, ("1234567890123456789012345678901234567890")
except OSError as e:
    print("ERR{}".format(e))

utime.sleep_ms(70)

I perform the tests on the Digi XBee 3 XK3-Z8S-WZM development kit.
One module has been sending data correctly for 4 hours (but crashes after that…), the other one reports an error [Errno 7105] ENOBUFS after about 5 minutes.
Why such a difference in the operation of the same modules?
How to proceed in case of such an error?
For now I restart the modules, is there any programmatic way to get out of this error?
Is there any other way for the module to connect to android? I tried searching for devices via ble.gap_scan, but the mac address of the tablet does not appear.

2

this looks as though you are not setting up the buffers properly. That is what the Error message is referring to.