https://devzone.nordicsemi.com/f/nordic-q-a/40788/nrf52840-development-kit-connect-probleNRF52840 development kit is BLE 5.0. If I buy a dongle is BLE 4.0 can search my NRF52840 device and connect?en-USTelligent Community 13Thu, 22 Nov 2018 15:15:32 GMThttps://devzone.nordicsemi.com/thread/158697?ContentTypeID=1Thu, 22 Nov 2018 15:15:32 GMT137ad170-7792-4731-bb38-c0d22fbe4515:3049d1ea-04e3-4ce0-b103-564513795505Simon<p>That should work fine. BLE 5 is backwards compatible, and&nbsp;is&nbsp;<span>inter-operable</span> with a device using BLE 4.0. More information can be found&nbsp;<a href="https://devzone.nordicsemi.com/f/nordic-q-a/30580/bluetooth-5-vs-4-2">here</a>.</p> <p>Best regards,</p> <p>Simon&nbsp;</p><div style="clear:both;"></div>