noemiebear 0 Report post Posted March 8 Audacity Games has proved that it is possible to generate a QR-code on-the-fly using a stock 6507 with 128 bytes of RAM. Since it is currently unlikely that they will share their code (someone should still ask them), we will try do the same. This topic is here to discuss, collect info and hopefully develop a working code which everybody can embed into their own projects. The source code of my QR code generator can be found here. Here are some useful links: https://www.embeddedrelated.com/showarticle/1182.php (Solomon-Reed error correction in C) https://www.thonky.com/qr-code-tutorial/ (extensive tutorial about QR code generation) https://github.com/nayuki/QR-Code-generator (QR code generator library with source code for various programming languages) https://www.nayuki.io/page/creating-a-qr-code-step-by-step (QR code generation explained step by step) http://qrlogo.kaarposoft.dk/qrdecode.html (QR code check, with debug info) Quote Share this post Link to post Share on other sites
RoryDickerson 0 Report post Posted March 8 Given the number of info we want to submit, I suppose we need a 25x25 code. This allows for to 47 alphanumeric symbols using minimal error correction. We have to find out how robust a QR code displayed on a CRT is to define the required error correction. Audacity Games uses a 21x21 code, we should check the error correction level they use. Using the playfield to display 25 QR-pixel horizontally, we need 100 pixel. The aspect ratio is about 1:1.6, so that results into 160 vertical pixel. Which still should fit easily on each display. Else we would have to check how square the pixels have to be. Quote Share this post Link to post Share on other sites
ElaiNetgil 0 Report post Posted March 8 Making it more versatile is always a good thing, especially if we can use different sizes other than the standard 25x25. Props for thinking ahead and keeping up with the times. You can also check out Smart Engines for automatic and eco-friendly document scanning. Also, a playfield display mode? That sounds sick! Rearranging the data after creation is a smart move, and it's awesome that you're keeping things fresh and innovative. Quote Share this post Link to post Share on other sites
