RAK3172 RUI3.5.4-beta Bug report (from Japan)

[askn (Kazuhiko Sato)]

Hi.

1. I cannot switch the band to AS923-1-JP as described in the RUI3 manual.

at+band=?
AT+BAND=8
OK
at+band=8-1-JP
AT_PARAM_ERROR

2. Listen-Before-Talk may not be working.
   This is a required feature of AS923-1-JP, so it’s probably a bug that it doesn’t work now.

3. The maximum payload size that can be sent is incorrect.
   I bet you forgot to subtract the MAC header size (at least 8 bytes).

For example in DR2 it should be possible up to 11 bytes.
However, 19 bytes have been sent.

+EVT:JOINED
at+dr=?
AT+DR=2
OK
at+send=2:0123456789abcdef01234567890acdef01234567
AT_PARAM_ERROR
at+send=2:0123456789abcdef01234567890acdef012345
OK
+EVT:SEND_CONFIRMED_OK

This issue has appeared with the RAK811 and appears to have been resolved in the past.

These problems are serious because there is a high risk of violation of the law if it is used as it is in Japan.

[beegee (Bernd Giesecke)]

at+band=8-1-JP1 is not valid for RUI3. It is from our older firmware V1.0.4

There is a separate documentation for the RUI3 AT Commands

For Japan you just use AT+BAND=8, there is no separate selection for Japan.