send some information from arduino to appinventor

Hello, I’m a beginner in programming, the error may be obvious but I can’t get information from adruino uno to appinventor.
The transmission of information is done by a bluetooth module HC-05 connected to arduino uno.
I made a voltage divider because the bluetooth module is powered in 3.3v.
Here are pictures of my arduino program, what I did on appinventor and my connections (on the pictures, it’s written arduino leonardo because I took them on the internet but I’m of course arduino uno):

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“Here are pictures of my arduino program”

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