https://devzone.nordicsemi.com/f/nordic-q-a/43744/how-to-receive-image-data-on-nrf51822Hi, I am developing one of the application using nrf51822 with SDK S110. in which I need to receive the long data(like image) through the mobile app. And newbie to the nrf51 development zone and I have gone through some example provided in the SDKen-USTelligent Community 13Fri, 15 Feb 2019 12:34:31 GMThttps://devzone.nordicsemi.com/thread/171378?ContentTypeID=1Fri, 15 Feb 2019 12:34:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fbd8a875-2b47-4059-bcdd-302579b9c627Vidar Berg<p>Hi,</p> <p>You will need to split the data into multiple smaller packets. The default packet payload in BLE is 20 bytes. I think the<a href="https://www.nordicsemi.com/DocLib/Content/SDK_Doc/nRF5_SDK/v12-3-0/ble_sdk_app_nus_eval"> ble_app_uart</a> example can be a good starting point for this.&nbsp; Data sent from the phone will be forwarded to the&nbsp;nus_data_handler() in this example.&nbsp;</p> <p>Also, since you are using the s110 stack, please have a look at this blog post here, you may be impacted by the deprecation of BLE v.4.0 and v.4.1:&nbsp;<a href="https://devzone.nordicsemi.com/b/blog/posts/what-impact-does-the-deprecation-and-withdrawal-of-bluetooth-core-specification-v4-0-and-v4-1-have-on-your-current-and-future-products">https://devzone.nordicsemi.com/b/blog/posts/what-impact-does-the-deprecation-and-withdrawal-of-bluetooth-core-specification-v4-0-and-v4-1-have-on-your-current-and-future-products</a>&nbsp;</p><div style="clear:both;"></div>