QR Code:

This is just a little system I threw together that functions somewhat like a QR code. It uses black and white wool blocks to store data (in this case characters). It's not really that effecient as something like hexadecimal would produce tons more options. Either way, it was just made for fun and I hope you enjoy! If you did, a diamond would be much appreciated! Thanks!

Functions:

• Allows you to write your own Minecraft QR codes
  
• Allows you to read your own Minecraft QR codes
  
• Allows you to save and load 10 different QR codes
  
  

Commands:

Save: /scoreboard players set @p Char (number)
Load: /scoreboard players set @p Char -(number)