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How to send more than 20 bytes of data at a time with blue_nrg [Copy link]

 

aci_gatt_write_without_resp(connection_handle, rx_handle+1, 20, (uint8_t *)buff)==BLE_STATUS_INSUFFICIENT_RESOURCES)

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Yes, you can retrieve ATT_MTU and extension in SDK [attach]620391[/attach] [attach]620394[/attach]   Details Published on 2022-7-8 09:09
 
 

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This depends on the configuration in the Bluetooth module firmware. However, for BLE Bluetooth, half of the data is limited to 20 bytes, and any excess will be discarded.

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Do I need to do some sub-packaging before sending it to the device?

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Which chip are you using? Models that support LE data packet length extension can send longer data packets.

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blue_nrg2. Is it supported? How to change it?  Details Published on 2022-7-8 08:46
 
 
 

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littleshrimp posted on 2022-7-8 07:58 Which chip are you using? Models that support LE data packet length extension can send longer data packets.

blue_nrg2. Is it supported? How to change it?

This post is from ST - Low Power RF

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Yes, you can retrieve ATT_MTU and extension in SDK [attachimg]620391[/attachimg] [attachimg]620394[/attachimg]   Details Published on 2022-7-8 09:09
 
 
 

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mfc4143 posted on 2022-7-8 08:46 blue_nrg2. Is it supported? How to change it?

Yes, you can retrieve ATT_MTU and extension in SDK

This post is from ST - Low Power RF
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