https://devzone.nordicsemi.com/f/nordic-q-a/26304/one-central-two-peripheralHello, here i explain the set up. Cental_A Board :- scanning two peripheral Peripheral_A Board :- advertise with name Peri_A . Peripheral_B Board :- advertise with name Peri_B . both peripheral board are advertise at there defined rate. en-USTelligent Community 13Thu, 26 Oct 2017 10:58:58 GMThttps://devzone.nordicsemi.com/thread/103530?ContentTypeID=1Thu, 26 Oct 2017 10:58:58 GMT137ad170-7792-4731-bb38-c0d22fbe4515:dcb6587a-b4fb-4b9b-8980-d66ade8d15fbbjorn-spockeli<p>Hi Milav</p> <p>unfortunately we do not have any examples/guides showing how to implement a DFU Controller(Master) on a nRF51 device. We only have examples showing how the DFU Target (Slave) is implemented, i.e. the bootloader examples in the SDK.</p> <p>However, the DFU Service and the Device Firmware Update procedure is documented on our Infocenter, <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v11.0.0/bledfu_transport_bleservice.html?cp=4_0_7_4_3_1_4_1">here</a> is the link, so it should be to large an effort to implement this.</p> <p>I recommend starting with one of our central examples, e.g. examples\ble_central\ble_app_hrs_c and use it as a template.</p> <p>Best regards</p> <p>Bjørn</p><div style="clear:both;"></div>