Changes

* The fitlet2 3.5 Audio jack has a 4th pin that outputs digital audio.<br>* In order for this to work, there's a need for a 4-pole 3.5mm to RCA cable.<br>* This cable is sold in the set of cables package for the fitlet2 - [https://fit-iot.com/web/product/accenc-adflt2/ fitlet2 set of cables]* The fitlet2's 3.5mm audio connector's pinout can be found below: {| class="wikitable collapsible collapsed"|-! Audio-in|-| [[File:fitlet2_audio_input_connector_pinout.png]]|} {| class="wikitable collapsible collapsed"|-! Audio-out|-| [[File:fitlet2_audio_output_connector_pinout.png]]|}