Error 503 not valid MAC address

[mookshssk]

I'm going to make an RC car with ESP32.
When I try to connect ESP32 with app inventor, the message "Error 503: The specified address is not a valid Bluetooth MAC address" appears and I cannot connect.
What's the solution?

[Anke]

I want to create a popup to get bluetooth on off permisson

I checked it now on the test server. Only the following permissions are declared there in the manifest: <uses-permission android:name="android.permission.INTERNET"/> <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/> <uses-permission android:name="android.permission.BLUETOOTH"/> <uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE"/> So it doesn't work on Android 12+. But these blocks (APK built on the regular AI2 server) seem to work on all Android vers…

[ABG]

That MESSAGE procedure is sending your app into a coma when it is called.

It does nothing but call itself ad infinitum, until it fill memory.

[Tejas]

yup it goes in a loop with no end condition so then the app is basically dead after you call the function