import qrcode
# DOI of the article
doi = "10.3390/s21014816"
# URL of the article
url = "https://ncbi.nlm.nih.gov/pmc/articles/PMC8309744/#sec4dot1-sensors-21-04816"
# Combine DOI and URL for better accessibility
doi_url = f"DOI: {doi}\n{url}"
# Generate QR code
qr = qrcode.QRCode(
version=1,
error_correction=qrcode.constants.ERROR_CORRECT_L,
box_size=10,
border=4,
)
qr.add_data(doi_url)
qr.make(fit=True)
# Create an image from the QR Code instance
img = qr.make_image(fill_color="black", back_color="white")
# Save the QR code as an image file
img.save("doi_qr_code.png")