projet 3 using BLE and Mit App Inventor

Q&A Forum › Category: ESP32 › projet 3 using BLE and Mit App Inventor

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Frederik Hamels asked 9 months ago

When I upload the programs in my ESP and on my Samsung S8 phone, everything goes well upon the connection.

I just get a blank screen when I want to connect.

I tested to connect with nrF and SerialToBLuetooth, and the the connection to the ESP32 is made.

I also tried other available examples from the net, and I always get the same issue. No connections are proposed.

How could I solve this issue?

5 Answers

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Sara Santos Staff answered 9 months ago

Hi Frederik.
What do you mean? Can you be a little more specific?
You get a blank screen when you tap the “Connect button”?
In your smartphone if you go to your bluetooth settings and “Pair a new device” menu, does it show up?
Regards,
Sara

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Frederik Hamels answered 9 months ago

Hi Sara,
indeed, when tapping the connect button, the screen remains blank. Pairing the device works.
Meanwhile, I have found an intermediate solution. It works, if in the Bluetooth menu of the Samsung phone, I allow connections with other devices.
As nrF and SerialToBluetooth work without this option, I’m wondering if there is a setting in MIT that would overcome this issue.
Thanks,
Frederik

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Sara Santos Staff answered 9 months ago

Hi Frederik,
I’m not aware of a solution for that in the MIT app inventor.
However, I’ve found this discussion that may help you: https://community.appinventor.mit.edu/t/need-to-be-able-to-scan-and-pair-bluetooth-devices-within-the-app/2661
Regards,
Sara

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Frederik Hamels answered 9 months ago

Hi,
ok, thanks for the info.
Frederik

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Sara Santos Staff answered 9 months ago

Great!
I’ll mark this issue as resolved. If you need further help, you just need to open a new question in our forum.
Regards,
Sara