• Version: The 40 different versions of QR Codes mainly differ in the number of modules. Version 1 consists of 21x21 modules, up to 133 (lowest error correction level) of which can be used for storing encoded data.
    The largest QR Code (Version 40) has a size of 177x177 modules and can store up to 23,648 data modules.
    二维码Version 版本。Version 1是21 x 21的矩阵,Version 2是 25 x 25的矩阵,Version 3是29的尺寸,每增加一个version,就会增加4的尺寸,公式是:(V-1)*4 + 21(V是版本号) 最高Version 40,(40-1)*4+21 = 177,所以最高是177 x 177 的正方形。
  • tea :
    #ECC# Capacity and # Error correction code#
    The capacity of a QR Code depends on several factors. Besides the version of the code that defines its size (number of modules), the chosen error correction level and the type of encoded data influence capacity.

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