This never works!

[eos1d3]

I use your code and just removed the LCD and pubsub code.

This is the output:

Advertised Device: Name: MJ_HT_V1, Address: 58:2d:34:34:0f:a1, serviceUUID: 0000180f-0000-1000-8000-00805f9b34fb
Payload:fe95c12d3f3acea2
Found device count : 4
Start BLE scan for 60 seconds...


Advertised Device: Name: MJ_HT_V1, Address: 58:2d:34:34:0f:a1, serviceUUID: 0000180f-0000-1000-8000-00805f9b34fb
Payload:fe95c12d3f3acea2
Found device count : 4
Start BLE scan for 60 seconds...


Advertised Device: Name: MJ_HT_V1, Address: 58:2d:34:34:0f:a1, serviceUUID: 0000180f-0000-1000-8000-00805f9b34fb
Payload:fe95c12d3f3acea2
Found device count : 4
Start BLE scan for 60 seconds...

strServiceData.length() is always 6. How can this work?

[eos1d3]

The official ESP32 Arduino BLE does not work for getting service data of MJ_HT_V1.

Use https://github.com/fguiet/ESP32_BLE_Arduino

Use advertisedDevice.getServiceDataCount() to get no. of data, and use advertisedDevice.getServiceData(serviceDataIndex) for getting actual data.

Then this fixes the problem.

[nicoinn]

@eos1d3

I seem to be facing the same problems. Could you give a bit more details on how you got around that issue ?

[stripu]

@eos1d3
Can you please give us an example of the implementation, for us beginners? :)
I've been banging my head trying to make this work, and i'm stuck exactly on this issue.
Thanks!

[eos1d3]

@nicoinn @stripu Use the library I mentioned above.

The old one does not work:
advertisedDevice.getServiceData();

With the new above library, you have to get no. of service data:
int serviceDataCount = advertisedDevice.getServiceDataCount();

And then loop for each service data with:
advertisedDevice.getServiceData(serviceDataIndex);

[educ8s]

I get it to work.

At line 63 at the bridge file replace the command with following two commands.

int serviceDataCount = advertisedDevice.getServiceDataCount();
std::string strServiceData = advertisedDevice.getServiceData(0);