How do I connect my Android APP with Arduino Bluetooth module?

Hi there,

I have an Arduino HC-06 Bluetooth module and circuit with LED. What I want is to connect to device with mobile app (exported with C3) and turn ON and OFF my LED through app.

This is my C3 code:

And this is my Arduino code:

The problem is that my app just can't see any of BT devices nearby. The fact is that another BT app from Google Play can see my Arduino circuit, connect it and blink LED, so problem is 99% in my C3 project code.

Any ideas?

Does the Bluetooth example by itself work to establish a connection and get the name?

editor.construct.net

Unfortunately no :/ I am trying to establish connection using Samsung J3. Everything seems to be OK but… well… I have no idea now

If you're using remote preview, check your browser permissions to see if it has access to bluetooth. Otherwise kinda hard to help, since bluetooth is a pretty rare topic and no one is going to have your setup to troubleshoot.

Yup, I have this problem after export :/

So it works in preview?

The preview seems to be another problem. On my Samsung J3 (used only to testing, currently I am using iPhone) I can’t run preview. After establish connection with C3 it freezes and not even try to load project

Hello

I have the same problem on 2 smartphone samsung & one plus)

Maybe it's permission on bluetooth usage

https://developer.android.com/guide/topics/connectivity/bluetooth

https://developer.android.com/guide/topics/connectivity/bluetooth/permissions

Hello,

I have a problem to connect ESP32 with construct3. I connect ESP32 with computer and I have the name of server in my app (with example) but I have a characteristic and I and I can't get the text from this feature ("Hello").

Thank