Creating a QR Code That can be Scanned By Others will Allow Them to Join Your Wi-Fi Network.
It happens every time someone buys a new phone and then uses that phone to connect to their wireless network. Adding to the difficulty, visitors who are curious about the internet are likely to use your new router. In this case, QR codes can be used instead of manual code scanning, which is a welcome development.
Using a search engine, type “qr4 Android” and then choose “Mobile Readiness Android.” Inputing your Wi-Fi network’s SSID and other relevant data into the app will generate a QR code for your use. You should print this out, then post it in a place where everyone can see it, and finally, scan and upload it to the internet.