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madagaga/gist:cab1e6c03d0efd76a468c103ac9ddc5f

Last active April 20, 2020 07:28
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hcidump packet analysis for mijia BT
Raw
gistfile1.txt
$hcidump --raw
> 04 3E 25 02 01 00 00 7C C2 DB A8 65 4C 19 02 01 06 15 16 95
FE 50 20 AA 01 09 7C C2 DB A8 65 4C 0D 10 04 D5 00 28 02 AB
7C C2 DB A8 65 4C => mac address
Packet size vary from 37 to 41
when 41 temp and humidity are set on the 2 last bytes before CRC
28 02 => Humidity => big endian reverse 0228 => to int => 552 => 55.2%
D5 00 => Temperature => 00D5 => 213 => 21.3°c
when 37 last byte is battery percent
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