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verify 1st Revolt checksum byte #956

Merged
merged 1 commit into from
Apr 25, 2021
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Commits on Apr 23, 2021

  1. verify 1st Revolt checksum byte

    To avoid wrong reads and especially invalid autocreates for Revolt NC-546x
    energy cost meters, add verification of the 1st Revolt checksum byte.
    Check based on (old) analysis from mehf, see Forum #14292. There's
    another checksum(?) byte which I didn't understand yet.
    
    Also increase minimum length of messages to assure we received the checksum
    byte. In general, this patch might slightly decrease probability of receiving
    far devices, but I think avoiding erronous reads is more important.
    
    NOTE: For a patch for the svn.fhem.de version of SIGNALduino, see
    https://forum.fhem.de/index.php/topic,58397.msg1151053.html#msg1151053.
    gernot-h committed Apr 23, 2021
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