https://devzone.nordicsemi.com/f/nordic-q-a/5363/nrf51-donlge-nrf51822-beacon-android-developing---detect-button-pressedHi all, I&#39;m an Android developer and I need to develop an application that detect when someone presses the button on Beacon and do something. I&#39;ve just bought these two devices: NRF51 Donlge NRF51822 Beacon I installed the last versionen-USTelligent Community 13Wed, 04 Feb 2015 12:55:22 GMThttps://devzone.nordicsemi.com/thread/18749?ContentTypeID=1Wed, 04 Feb 2015 12:55:22 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4df26c19-67a3-4a4f-a9ff-92e95ca6d8acPetter Myhre<blockquote> <p>I think that I have to write my code with Keil, compile and test it with nRF51 dongle and after upload the .hex on Beacon via DFU with nRF Toolbox for Android. it&#39;s right?</p> </blockquote> <p>It is possible, but it sounds a bit cumbersome. I recommend you to consider buying a programmer, please see <a href="https://devzone.nordicsemi.com/question/20371/ble_app_beacon-and-nrf51822-ek/">this</a> question for more information.</p> <blockquote> <p>Can someone help me with coding? Any suggest? How can i find some example?Can someone explain me all the step to compile and upload the source code? Which is the difference between Program SoftDevice and Program Application on nRFstudio?</p> </blockquote> <p>Program SoftDevice is used to program the protocol stack, S110, S120, S130, S210, S310. Program Application is used to program the application.</p> <p>Please see <a href="https://devzone.nordicsemi.com/blogs/39/nrf51822nrf51422-getting-started-and-documentation/">this</a> blog to get started.</p> <p>Your other questions are very general, try to split them up and be more specific next time.</p><div style="clear:both;"></div>