SparkFun Audio Jack - 3.5mm TRRS (SMD) Connectors Instrument Accessories 3V (5V when jumper is

3V (5V when jumper is soldered)

Note: We have fixed the silkscreen error on this board

but a little abrasion with some sandpaper or scraping with a hobby knife works well

This header is in the common configuration for an ISP connector

Made of low abrasive brass shavings and requires no water

SparkFun Audio Jack - 3.5mm TRRS (SMD) Connectors Instrument Accessories 3V (5V when jumper isThis is a 3. 5mm TRRS SMD audio jack. TRRS connectors are the audio style connectors that you see on some phones, MP3 players and development boards. TRRS stands for tip, ring, ring, sleeve, which reflects the fact that, unlike a standard stereo connector, this actually has three conductors and a ground. Some devices use the extra conductor for a microphone (like hands free headsets) or to carry a video signal (like in some MP3 MP4 players).