https://devzone.nordicsemi.com/f/nordic-q-a/58396/undefined-reference-to-files-for-saadcHello, I&#39;m having trouble getting my program to compile with the SAADC. I started with a BLE template then added the battery service with sensorsim from ble_app_hrs and now I&#39;m trying to add SAADC functionality from ble_app_proximity. Everything worksen-USTelligent Community 13Thu, 27 Feb 2020 08:55:03 GMThttps://devzone.nordicsemi.com/thread/236725?ContentTypeID=1Thu, 27 Feb 2020 08:55:03 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c9811bd7-d43c-4096-bc04-1d05801fde2cNicholas_Nuti<p>Haha, wow I feel stupid. I added it to the makefile but not even to the project! Oh well... thank you Turbo!</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/236722?ContentTypeID=1Thu, 27 Feb 2020 08:50:17 GMT137ad170-7792-4731-bb38-c0d22fbe4515:c1b37b78-9823-4319-ba24-9165df411177Turbo J<p>You also need to add the corresponding .c file to your project.</p><div style="clear:both;"></div>