See: Headphone Jack (3.5mm) 2.5mm connectors are still common ... depending on the number of separate connector rings on the plug and jack. 2.5mm refers to the approximate diameter of the connector.
The analog socket used to plug in a headset, earphones or headphones. The 2.5 and 3.5mm jacks have been used on cellphones and smartphones, while stereo and home theater equipment generally have a ...
On the project Github, [Gordon] used the microphone pin on a TRRS jack to sent data to a computer. It needs two more resistors, but other than that, it’s as simple as the one-way communications ...
A common connector for plugging in a standard pair of music headphones such as the ones found on music players, computers and most other electronic devices with audio outputs. It can support stereo ...