Tuya Smart (NYSE: TUYA, HKEX: 2391), ... - Next, open the Home app and scan the Matter QR code on the door lock to add it to the app. - Once added, ...

First, you need a QR-code app and a smartphone or tablet equipped with a camera. iOS users should check out RedLaser.Android fans can try either RedLaser or QR Droid.Both of these apps are free to ...