ETOOBUSY 🚀 minimal blogging for the impatient
Reverse printing the QR Code in the terminal
TL;DR
There’s an update to Terminal QR Code with Unicode characters.
In post Terminal QR Code with Unicode characters I introduced a small program to print QR codes in the terminal, leveraging some clever Unicode characters.
Then I used it and I got mixed results. Using the camera from my smartphone, the QR code was being read fine. Using another application from the same phone… no. I guess they are using different libraries, and the latter program has a less advanced algorithm.
It turned out that the chocking program was expecting to read black contents on a white background, whereas the camera was fine with the reverse too (white on black). So I introduced a little update to the program to address this, setting the reverse option to a true value because… I like my terminal windows to have a black background.
The code has been updated but it’s still in its former location:
I guess this is it for today, stay safe!