https://devzone.nordicsemi.com/f/nordic-q-a/68991/how-to-control-the-central-writing-with-responseHi, For example ble_app_uart, when the peripheral ble rx buffer is almost full, I want to control the central write with response, but I don&#39;t konw how to indicate the central wite false by the peripheral devcie. For peripheral, the uuid config isen-USTelligent Community 13Mon, 07 Dec 2020 10:57:17 GMThttps://devzone.nordicsemi.com/thread/283501?ContentTypeID=1Mon, 07 Dec 2020 10:57:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:1597550b-0a02-4902-879b-ec3e96f189b3Kenneth<p>Yes, add a UUID to notify or read a buffer value yes.</p> <p>Kenneth</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/283452?ContentTypeID=1Mon, 07 Dec 2020 03:21:51 GMT137ad170-7792-4731-bb38-c0d22fbe4515:6f249de5-8d8a-4d80-a7be-8dcf6da8a766Yinbun Ye<p>ths Kenneth! You mean to add one more Notify UUID, when the peripheral there is no buuffer to receive more data from central device, the peripheral notify the central device stop sending data, or add Read UUID , is that right?</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/282884?ContentTypeID=1Wed, 02 Dec 2020 12:56:19 GMT137ad170-7792-4731-bb38-c0d22fbe4515:83cf41bc-986b-4396-ac72-e18522bc6c21Kenneth<p>It is possible to do what you describe, however the throughput will be very low, since you need to acknowledge every write in the application, this means you will effectively only be able to do one write every other connection interval.</p> <p>I think you should look into handshaking this on the application layer, e.g. only 5 writes are allowed before the peer will wait for a notification back indicating the next 5 are ready to be received.</p><div style="clear:both;"></div>