https://devzone.nordicsemi.com/f/nordic-q-a/24877/can-nrf52-connected-with-nrf51-and-mobile-bluetooth-4-xHello, This is Milav Soni from Teq Diligent,India. I explore the nRF52 series Chip and nRF51 series chip. I also explore some of your BLE video. I have one question regrading the connection of two BLE enabled Chip. My questions is.. en-USTelligent Community 13Mon, 04 Sep 2017 14:57:59 GMThttps://devzone.nordicsemi.com/thread/97971?ContentTypeID=1Mon, 04 Sep 2017 14:57:59 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f3a8e26c-cf5d-4e69-8598-931f57a88840milav<p>Thank You ,</p> <p>This Information is complete for me...</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/97970?ContentTypeID=1Sat, 02 Sep 2017 20:27:26 GMT137ad170-7792-4731-bb38-c0d22fbe4515:7e5c7aa1-6525-4469-9e8d-ed995b65174bendnode<p>Hello Milav,</p> <p>The answers to both of your questions are YES. Purpose of Bluetooth Low Energy standard is exactly this: interoperability of different devices from different vendors in various architectures. So as long as both part of the link have Bluetooth LE compliant stack they should be able to talk to each other (actually there is one more condition: as BT LE link layer is asymmetric then both devices must implement complementary profile so one can be master and one can be slave). If both sides implement GAP&amp;GATT layers (which is today basically &gt;95% of applications) then one of them must be GAP Central (Master) and one GAP Peripheral (Slave), similarly one of them should play GATT Server role and second GATT Client. Before connection is established Central acts as Scanner (Observer if you want) and Peripheral as Broadcaster (Advertiser if you want).</p> <p>Cheers Jan</p><div style="clear:both;"></div>