https://devzone.nordicsemi.com/f/nordic-q-a/26770/simple-i2s-exampleI&#39;m embarrassed to say that the loopback I2S example, while able to show me that data can be sent and received through I2S, wasn&#39;t enough to help me achieve a simple demonstration of emitting a tone. Could anyone help me or provide an example of outputtingen-USTelligent Community 13Fri, 10 Nov 2017 11:17:43 GMThttps://devzone.nordicsemi.com/thread/105231?ContentTypeID=1Fri, 10 Nov 2017 11:17:43 GMT137ad170-7792-4731-bb38-c0d22fbe4515:fc924d14-707f-4fd7-90cc-8d30500fd52bJ&#248;rn<p>Hello blueshifting</p> <p>There is a bare-metal example for transmitting a simple sine wave on github, under examples\i2s_master <a href="https://github.com/andenore/NordicSnippets">here</a>. Do keep in mind the I2S cannot generate a tone itself, as it is simply a digital data transfer protocol. Any tone you want to transfer must be defined as a series of data-points with the correct sampling rate. You can read more on the I2S specification <a href="https://web.archive.org/web/20070102004400/http://www.nxp.com/acrobat_download/various/I2SBUS.pdf">here</a>, and the I2S hardware peripheral for the nRF52832 <a href="http://infocenter.nordicsemi.com/topic/com.nordic.infocenter.nrf52832.ps.v1.1/i2s.html?cp=2_1_0_43#concept_z2v_24y_vr">here</a>.</p> <p>Best regards</p> <p>Jørn Frøysa</p><div style="clear:both;"></div>