Handle 0x00 char. Catch any error in event handler loop

[MarkusSchneider]

I had problems with a sensor sending 0x00 Char. I've handled the 0x00 char by replacing them with \uFFFD which is this char: . I've also added a catch for any error in the event handling loop. If an unhandled error occurs in this loop the whole integration stops working.

[GioMez]

Had the same problem. That fixed it. Thank you!