3 ms·
It is simpler technology, just 1D. You can read it with a led or laser, a motor with a mirror, a filter, a photodetector and a cheap microcontroller that cost
by bumbada 6y ago
It is simpler technology, just 1D.
You can read it with a led or laser, a motor with a mirror, a filter, a photodetector and a cheap microcontroller that cost cents.
The technology is so simple. A point of light moves and you get an output of ceros and ones, edges are supersharp.
There are lots of cheap chinese guns with the components already integrated.
If you have already a video camera and big microprocesor, QR are much better.Scanning barcodes with cameras is tricky, because barcodes edgess are blurry.
Professionals are going to use a gun anyway so it makes sense for them.