I’m trying to manually send a hex commands to the Huidu E62, but have troubles with checksum calculations.
There are samples of hex commands:
4854001b002302000000000000000000000000000000000000000205cb06000301b7aa
4854001b0023020000000000000000000000000000000000000002051c3300030135aa
4854001b002302000000000000000000000000000000000000000205449b000301c5aa
I guess that last 6 or 5 letters is a checksum. I’ve tried to calculate it with using of many different algorithms, but without success.
Also I’ve noticed that each hex line is ending with “aa“.
Huidu support is very terrible and don’t provide any tech specification :(.
Maybe someone knows which checksum algorithm it looks like?
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