Pasquale 'sid' Fiorillo

what about orientation: vertical feature?

is this already implemented?

> Do I need to put all the text from the QR, as argument? Or only a portion? If I put all the text... according to "[2D Barcode Specifications](https://ec.europa.eu/health/sites/default/files/ehealth/docs/digital-green-certificates_v3_en.pdf)" the...

> PS: Esiste un modo invece per generare la stringa, dal Json? Implementare gli step al contrario. Chiaramente non puoi generare una firma valida poichè non disponi delle chiavi private.

@harryberlin could you suggest the way? The `timeout` parameters is set to None, so the write() should be blocking. I've also tried to add `ser.flush()` after the `ser.write()` without success.

Similar output with CH341 instead of PL2303. I also tried with `C` and `termios.h`, same results... so the issue may not depend on pySerial.

it works with FTDI FT232R (`idVendor=0403, idProduct=6001, bcdDevice= 6.00`) and a `time.sleep(0.0075)`