Bluetooth Mit App Inventor

[Daemon]

Hello, I'm trying to create an application to connect a Raspberry Pi 4 Model B with an MIT App Inventor application. However, when I launch it on my phone, Bluetooth refuses to connect to the device. On the other hand, it works with BlueDot by running the command 'sudo rfcomm watch hci0' in parallel on the Raspberry Pi. Does anyone have any ideas or solutions?

Bonjour, j'essaie de créer une application pour connecter un Raspberry Pi 4 Model B avec une application MIT App Inventor. Cependant, lorsque je le lance sur mon téléphone, le Bluetooth refuse de se connecter à l'appareil, alors qu'avec BlueDot, cela fonctionne en exécutant la commande 'sudo rfcomm watch hci0' en parallèle sur le Raspberry Pi. Auriez-vous une idée ou une solution à ce problème ?

[Daemon]

Code :

[Anke]

@Daemon

Raspberry Pi 4 Model B

Using BLE Devices with a Raspberry Pi

So try with BLE extension.

Extension updates

Hello all, We have officially released the following extensions via our extensions page: BluetoothLE version 20230728 - Adds Bluetooth related permissions needed for Android 12+ (previously was a beta version available from this site) Micro:bit version 20200518 - Adds a simple interface for I/O pin interaction and UART communication (previously was available via Dropbox). TeachableMachine version 1 - A GSOC project by @Adonis. The sources for all of these extensions are available on GitHu…

[Daemon]

It doesn't work; during the installation, I even encounter errors, and regarding how to create the program with MIT, I can't find the two UUIDs

[Anke]

Try this (and post screenshots):

BLE extension - Date Built: 2023-02-23 - permissions & connecting issuses on Android 12+

Quite a few users are currently having problems with the (new) BLE extension. Here is a test app. Test it on your devices and post screenshots before and after scanning and connecting. Location permission is requested automatically (so disable it before testing). [grafik] [grafik] EDIT: See also here:

[Daemon]

I have never been able to find my device (raspberry pi ) with this application.

[Anke]

Try this one (BLE current ver 2023728 and Screen1 is scrollable)

BLE_permListDevConnect_allAndroid_2023728.apk

[Daemon]

It never worked, but I found a very shaky alternative solution. I will get back to you if I have any further questions.

[Anke]

@Daemon

It never worked

Post a screenshot of my last APK after "Start Scanning" (and after "Connect").

[Start_Over]

Hi Anke,

I am using your .apk to connect the micro: bit; it completely works, but when I use my app, the app will crash or get the error message "connection status was set to OS code 133" after connecting to the micro: bit.

Would you like to share your code with us for the reference?

[roxana_safipour]

Hi Anke,

Can you please share your code blocks for this app? Of all the ones posted this is the first one to work on my device. Can you please share this code so I can see what I am doing wrong on my apps?

Cheers,
Rox

[Anke]

@Start_Over

Would you like to share your code with us for the reference?

@roxana_safipour

Can you please share this code so I can see what I am doing wrong on my apps?

Error 908: The Permission BLUETOOTH.CONNECT has been denied (android 11)

I'm reluctant to post an AIA in such cases because most people then make their adjustments and then claim it doesn't work. The fact that adjustments have been made usually only becomes apparent after long negotiations and many unnecessary posts. Therefore I prefer to post APK links. Here are my blocks: [grafik] and here are the used extensions: [grafik]