https://meliplug.info/en/tags/qrcode/Recent content in Qrcode on meliplug.infoHugo -- 0.160.0-DEVenywbird@naver.com (ywbird)ywbird@naver.com (ywbird)Sun, 18 Oct 2026 21:17:53 +0900https://meliplug.info/en/articles/qrcode/part-1/Sun, 18 Oct 2026 21:17:53 +0900ywbird@naver.com (ywbird)https://meliplug.info/en/articles/qrcode/part-1/<p>i&rsquo;m trying to make a qr code generator while reading these:</p> <ul> <li>ISO IEC 18004 2015 Standard.pdf</li> <li>https:www.thonky.com/qr-code-tutorial</li> </ul> <p>*</p> <h2 id="modes"> <a href="#modes" class="anchor">modes</a> </h2> <table> <thead> <tr> <th>mode</th> <th>indicator</th> <th>note</th> </tr> </thead> <tbody> <tr> <td>eci</td> <td>0111</td> <td>extended channel interpretation (e.g. utf-8)</td> </tr> <tr> <td>numeric</td> <td>0001</td> <td><a href="#a-alphanumeric-table" class="internal" >alphanumeric table</a> </td> </tr> <tr> <td>alphanumeric</td> <td>0010</td> <td></td> </tr> <tr> <td>byte</td> <td>0100</td> <td></td> </tr> <tr> <td>kanji</td> <td>1000</td> <td>shift JIS</td> </tr> <tr> <td>structured append</td> <td>0011</td> <td>encode data into multiple qr codes (max 16)</td> </tr> <tr> <td>fnc1</td> <td>0101(1st)<br>/1001(2nd)</td> <td>turn qr code into gs1 barcode</td> </tr> </tbody> </table> <h3 id="mixing-modes"> <a href="#mixing-modes" class="anchor">mixing modes</a> </h3> <p>multiple modes can be used in single qr code.</p>