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Customization of ATT_MTU on the SensorTile.box

pignaz
Associate

Hello, I'm currently using a ST SensorTile.box STEVAL-MKSBOX1V1 in Expert Mode (by writing the firmware with the STM32CubeIDE).

I configured the SensorTile.box to "publish" data on 3 GATT Characteristics that are quite big (around 180 byte), with the Notification property.

The problem is that the SensorTile.box answers to all MTU negotiation with a maximum value of around 150 byte. Hence, the notification is truncated.

I need to modify the ATT_MTU to a bigger value, but I can't understand how. I searched on all the files of the BlueNRG middleware, but I didn't find a way

Can you help me? Thank you!

Andrea

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