https://devzone.nordicsemi.com/f/nordic-q-a/11131/nrf51-dongle-as-stand-aloneHi, Is it possible to program the nRF51-Dongle through the usb, to correspond to Bluetooth content to change GPIO state. Then connect the dongle to an external power source instead and use it as a stand alone device? I am actually talking about usingen-USTelligent Community 13Mon, 04 Jan 2016 13:38:37 GMThttps://devzone.nordicsemi.com/thread/41715?ContentTypeID=1Mon, 04 Jan 2016 13:38:37 GMT137ad170-7792-4731-bb38-c0d22fbe4515:a36cc886-383e-4b04-93ed-6854065f6d55&#216;yvind Karlsen<p>Right you are! Actually you can connect any 3.6-5.5V source to the regulator through the pin labeled 3.6V-5.5V, and its corresponding ground pad.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41716?ContentTypeID=1Mon, 04 Jan 2016 13:35:31 GMT137ad170-7792-4731-bb38-c0d22fbe4515:8b85449d-be66-451e-9fa8-d8dcc900842eawneil<p>Or you could apply 5V via the USB connector.</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/41714?ContentTypeID=1Mon, 04 Jan 2016 13:34:46 GMT137ad170-7792-4731-bb38-c0d22fbe4515:f71ccfab-25b9-4619-b8fe-7a2003c2e6cf&#216;yvind Karlsen<p>Hi,</p> <p>Yes, this is possible!</p> <p>Simply solder a 3v3 source between the GND and 3v3 pins and you are good to go. Additionally it is possible to program it either through the USB interface, or using a different nRF5 kit and the 10pin connector, the process is explained in <a href="https://devzone.nordicsemi.com/blogs/686/programming-the-nrf51822-beacon-kit-with-the-nrf51/">this blogpost</a>(however the beacon uses a 6pin connector, it is the same idea).</p> <p>Best regards,</p> <p>Øyvind</p><div style="clear:both;"></div>