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Reply To: [unofficial weekender] 1 Week until Christmas

December 23, 2021 at 5:42 pm #1704815

blinky465

17028xp

Need to investigate QR code printing at tiny sizes as an alternative

I’ve been doing this too. I’ve a hardware decoder module (that works either over serial for connecting to a microcontroller or to USB for PC use) that can decode a full QR code at about 7mm square. If you stick with micro QR your can probably go as small as 5mm square (at about 10cm reading distance).