Adding a camera to a project used to be a chore, but modern camera modules make it simple. But what if you want to read QR codes? [James Bowman] noticed a $7 module that claims to read QR codes so he ...

We’ve seen networks built over some interesting mediums, but QR codes has to be a new one. [Eric Seifert] decided to try to use QR codes to make an IP connection. He used these visual codes to create ...