QR Scanner gets to hot if used a long period of time

[Schnuartz]

If you click scan QR with the Specter DIY, and wait maybe one hour and don't scan anything. The QR Scanner gets very hot.

The Scanner even melts some plastic from the SnapCase. And the waveshare scanner board becomes defekt.

This could be easily solved by adding a timer that turns the scanner off after a certain amount of time for example 10mins.