I would like the application in the "text 2" field to display everything that is sent via the USB port from aduino. Honestly speaking, I don't know English very well to understand video tutorials so I did it my way. And even earlier, the application turned on without problems (although it did not work), now it can not even compile and I have an error in the emulator:
"java.lang.NoClassDefFoundError: android.hardware.usb.UsbManager app inventor"
I know that the the blocks are nonsensical - I'm learning.