https://devzone.nordicsemi.com/f/nordic-q-a/68164/how-to-set-android-nrf-toolbox-uart-send-rate-higherI use Android nRF Toolbox Uart and NRF52832（SDK version ：17.0.2，app：ble_app_uart）。 I set （RX＆TX）PHY 2M，（11.25-15,0,20S）。 form NRF52832 send data to Android nRF Toolbox is 100kb / s but i use public void send（ final String text）{ if （ mServiceBinderen-USTelligent Community 13Wed, 11 Nov 2020 14:09:58 GMThttps://devzone.nordicsemi.com/thread/279512?ContentTypeID=1Wed, 11 Nov 2020 14:09:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0780ee91-4a10-48a1-a316-da23afb8d3c8Karl Ylvisaker<p>Hello,</p> [quote user=""]but i use[/quote][quote user=""]from Android nRF Toolbox Uart&nbsp; send data&nbsp;&nbsp;to NRF52832&nbsp;is 1kb / s[/quote] <p>Could you confirm for that what you mean by this is that you are developing your own application - but you are referencing the nRF Toolbox code - is this correct?<br />If so, what is the connection priority that you are using?<br />The Application can not determine the connection parameters directly, unfortunately, but you could request <a href="https://developer.android.com/reference/android/bluetooth/BluetoothGatt#CONNECTION_PRIORITY_HIGH">a higher connection priority</a> to speed up the communication.<br />Please be aware that this will increase power consumption.<br /><br />If this was not what you were asking about, please elaborate.<br /><br />Best regards,<br />Karl</p><div style="clear:both;"></div>