https://devzone.nordicsemi.com/f/nordic-q-a/82171/s112-nrf52805-peripheral-and-mobile-app-ble-centralHi, I&#39;m using S112 nRF52805 as the BLE Peripheral, and Mobile App as the BLE central. So far, It&#39;s no problem to send data from peripheral to central. Could I send data from central to peripheral if I&#39;m using nRF52805 and S112, please? If yesen-USTelligent Community 13Mon, 29 Nov 2021 12:24:50 GMThttps://devzone.nordicsemi.com/thread/341067?ContentTypeID=1Mon, 29 Nov 2021 12:24:50 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cff33ab5-9fb8-4fe1-a5b1-8f4ba0db7b8eMarte Myrvold<p>Hi,</p> <p>Yes, this is possible. Some examples where data is sent from central to peripheral are the&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/ble_sdk_app_blinky.html">BLE Blinky application</a>&nbsp;(ble_app_blinky)&nbsp;and the&nbsp;<a href="https://infocenter.nordicsemi.com/topic/sdk_nrf5_v17.1.0/ble_sdk_app_nus_eval.html">Nordic UART Service application</a>&nbsp;(ble_app_uart). If you have not already, I would recommend checking out the guide&nbsp;<a href="https://devzone.nordicsemi.com/guides/short-range-guides/b/getting-started/posts/developing-for-the-nrf52805-with-nrf5-sdk">Developing for the nRF52805 with nRF5 SDK</a>.</p> <p>Best regards,</p> <p>Marte</p><div style="clear:both;"></div>