custom protocol on nRF51 BLE radio without using BLE stackhttps://devzone.nordicsemi.com/f/nordic-q-a/13032/custom-protocol-on-nrf51-ble-radio-without-using-ble-stackHi Team, What if I don&#39;t what to use BLE stack but still want to use nRF51 Radio (PHY + MAC) to implement some custom communication protocol between multiple nRF51 devices? Regards, Milan Joshien-USTelligent Community 13Thu, 07 Apr 2016 13:04:39 GMTRE: custom protocol on nRF51 BLE radio without using BLE stackhttps://devzone.nordicsemi.com/thread/49690?ContentTypeID=1Thu, 07 Apr 2016 13:04:39 GMT137ad170-7792-4731-bb38-c0d22fbe4515:62d71f1f-d470-4b43-8521-f32e14f38708Anders Strand<p>Hello.</p> <p>We have <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.sdk5.v11.0.0/user_guides.html?cp=4_0_0_5">user guides</a> for gazell and ESB. They are both protocols developed by Nordic. You are also free to use the radio directly and create your own protocol. See the radio documentation in the <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf51/dita/nrf51/pdflinks/ref_manual.html?cp=2_2">reference manual.</a></p> <p>-Anders</p><div style="clear:both;"></div>