BLE master notification speed?

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JonathanChenNew
Posts: 11
Joined: Thu Mar 09, 2017 2:52 am

BLE master notification speed?

Postby JonathanChenNew » Tue Dec 26, 2017 2:10 am

Hi
Send notification with the function: esp_ble_gatts_send_indicatte() ,and 'need_confirm' is false.
I have to delay 10ms between notifications.So the speed is about 2KB/s.
and esp32 reports err when the delay is 5ms;
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kolban
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Joined: Mon Nov 16, 2015 4:43 pm
Location: Texas, USA

Re: BLE master notification speed?

Postby kolban » Tue Dec 26, 2017 5:08 am

What is the error message reported by the ESP32?
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JonathanChenNew
Posts: 11
Joined: Thu Mar 09, 2017 2:52 am

Re: BLE master notification speed?

Postby JonathanChenNew » Tue Dec 26, 2017 7:42 am

kolban wrote:What is the error message reported by the ESP32?
message:
[0;31mE (144677) BT: L2CAP - CID: 0x0004 cannot send, already congested
xmit_hold_q.count: 201 buff_quota: 200[0m
[0;31mE (144677) BT: ATT failed to pass msg:0x1b to L2CAP[0m
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