Denso QR Code

Format and Version Information - QR Code TutorialThonky.com

Content is subdivided into segments, where each segment is:

• Mode Indicator

• Length field

• Mode bitstream

Presence or absence of ECI , the client through convention always does heuristics.

From thonky.com:

It is possible to use multiple modes in a single QR code by including the mode indicator before each section of bytes that uses that mode. The QR code specification explains how to switch modes in the most optimal way. I will not be discussing this in the tutorial but I may add more information at a later time. This tutorial will assume that you will not mix modes in your QR codes.