Hi Anke
I don't know if it could help you, but you will find the two debug files , I have done, with adb you mentionned (I didn't know adb procedure ) :
One for the phone with the BTClient bug , and another one with the tablet where all is OK .Same APP of course .
I am wondering if someone else has also, like me, this new trouble with BT classic when Calling Bluetooth Client Adress finally ? Could it be useful to gather who has the same trouble and in which type of Android device ?
I also have a similar problem. The app that used to work fine 2 years ago, is not working now, after rebuilding the same .aia file today. When i click the list picker of bluettoh, the screen shows the list of previously connected bluetooth deives. And when i click on the desired bluetooth device from the list, i am getting the RunTime Bluetooth permission error. Can someone pls help me BT_Permission_Testing.aia (2.1 KB)
Hi all.
I'm currently facing the same issue. Trying to connect to a Bluetooth device (HC-05 module) using BluetoothClinet on my Xiomi Mi 11Tpro (Android 12, API 31) with the same result as described above.
To have a better picture of the issue below you can find screens from running the "BluetoothClient_AI2test_withConnection"
Dosen't matter what app I will try to build, I get the same result shown in the picture that appears after trying to connect.
What is wondering is why running the app requires this permission on my phone (API 31).
if I understand correctly according to the information under this link
this permission is required for the older SDK version?
Hi Anke, I have seen many of your posts giving solutions to issues related to MIT app inventor. I need your kind support here.
We need solution for the classic Bluetooth client. Here are 2 scenarios.
App developed and apk built on MIT app inventor 2 years ago is working fine with Android 10 as well as Android 12.
The same app is just rebuilt to generate new apk ( blocks and designer is same as that of the app developed 2 years ago). But the newly built apk is not working on Android 12 but works well with Android 10.
Hi anke. I haven't used the latest BLE version. Since I have built entire app based on classic Bluetooth, all blocks are using elements from Classic Bluetooth Client only.
So if i use new BLE extension, I should change all the blocks of the app.
So is it possible to upgrade the classic Bluetooth extension to solve this permission issue?
Thanks Chris for correcting me.
Is it possible to get a simple sketch to establish the Bluetooth Scan, Bluetooth Connect, Send simple text and receive simple text. Its very useful.
There are many BLE examples across the forum. A BLE Sketch is not so simple, and if you want to both send and receive - to what extent? Define your code appropriately if your App needs to both send and receive. Think of a Bluetooth signal as water running through a pipe - it can't go in both directions at the same time.
Is that the latest version microbit?
Power User @ghica is a Microbit expert, would be good to have her opinion. At one time, App Inventor had a nice set of functions specifically for microbit but I think they have fallen behind the development of the hardware somewhat.
I understand that send and receive does not work simultaneously.
I am using this app as a bluetooth remote to control 4 push button switches connected to a microcontroller. Android app will send simple codes as (Numeric 1, Numeric 2, Numeric 3 and Numeric 4) via bluetooth to a bluetooth Module named HC-05 connected to Microcontroller. When Microcontroller receives numeric 1 via bluetooth module connected to it, if soft presses the PushButton and so on up to Push button 4.
Once the soft press is done, Microcntroller sends feedback from HC05 bluetooth module as Alphabet A (for pushbitton 1, and B,C or D up to Push button 4. This feedback is captured back in android app for confirmation.
So, the app should first,
Search for Bluetooth devices.
Select the Bluetooth Module HC05 from list of available bluetooth connections nearby
Then send characters either '1', '2', '3', or '4' based on user input.
This character is received by HC05 bluetooth module connected to microcontroller.
App should receive back confirmation as 'A', 'B', 'C', or 'D' and change the label text to Push Button Pressed (1,2,3, or 4)
OK, HC-05 uses Classic Bluetooth, so stick with that.
It will be the Address listed and unlike some examples on the forum, do not modify that - App Inventor deals with it automatically.
This is the danger - you need to prevent the User from sending the next value until the receipt of confirmation of the first value has arrived - So on send, disable all send buttons, On receipt, enable all send buttons.
If you are the only ever User, that's perfectly fine - but others would find it confusing. What if I needed to send 3 again and my button now says 'C'?
Not a term I am familiar with, but I assume that a relay or similar will be triggered programmatically.
