How to draw qrcode on Waveshare 1.54inch e-paper display

Using Arduino Displays
1

I would like to know how to draw qrcode on Waveshare 1.54inch e-paper display. I've used that library: GitHub - ricmoo/QRCode: QR code generation library in C, optimized for low-power devices, such as Arduino., the example only shows printing on Serial.

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Hi maksumon,

You just need to draw filled rectangles in black or white to the display. Try to do it on a TFT first, if you have one. If you use a TFT library with standard Adafruit_GFX fillRect() method, it should be easy to use it then with an e-paper library, e.g. GxEPD.

I would first search for qrcode in the Arduino Forum, I did, but did not see a directly usable entry for TFTs, but maybe this for LCD has some useful info: Encoding and generating QR Codes