Set Multicast Address Version Below 2.30

Example:

BBAA 29 ffffff09(dev add must change) 00000000000000000000000000000000(appskey static) FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF(nwskey static) F74B(crc must change)

CRC use this: https://www.scadacore.com/tools/programming-calculators/online-checksum-calculator/

CRC-16 Big Endian (ABCD)

BBAA29ffffff0900000000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF - will get F74B

Combine with CRC:

BBAA29ffffff0900000000000000000000000000000000FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF74B

Convert to base64 use this: https://cryptii.com/pipes/base64-to-hex:

u6op////CQAAAAAAAAAAAAAAAAAAAAD/////////////////////90s=

Use chirpstack enqeue this base64 to write in nema controller Shuncom Batch 9 <

Subscribe mqtt device. If success, uplink will send this: rwRPS/YU -> af 04 4f 4b f6 14

Set multicast group like this:

Second option using database and nodered auto send.

SELECT * FROM GroupDevice WHERE groupID=145; Update this column.
Open nodered. Change group id
https://nodered.streetlight.react.net.my/#flow/e383cb23374c4187
Change group id