<script type="text/x-red" data-help-name="AudioOutputI2S"> <h3>Summary</h3> <div class=tooltipinfo> <p>Transmit 16 bit stereo audio to the <a href="http://www.pjrc.com/store/teensy3_audio.html" target="_blank">audio shield</a> or another I2S device, using I2S master mode.</p> <p align=center><img src="img/audioshield_outputs.jpg"></p> </div> <h3>Audio Connections</h3> <table class=doc align=center cellpadding=3> <tr class=top><th>Port</th><th>Purpose</th></tr> <tr class=odd><td align=center>In 0</td><td>Left Channel</td></tr> <tr class=odd><td align=center>In 1</td><td>Right Channel</td></tr> </table> <h3>Functions</h3> <p>This object has no functions to call from the Arduino sketch. It simply streams data from its 2 input ports to the I2S hardware.</p> <h3>Hardware</h3> <p align=center><img src="img/audioshield_backside.jpg"></p> <p>The I2S signals are used in "master" mode, where Teensy creates all 3 clock signals and controls all data timing.</p> <table class=doc align=center cellpadding=3> <tr class=top><th>Pin</th><th>Signal</th><th>Direction</th></tr> <tr class=odd><td align=center>9</td><td>BCLK</td><td>Output</td></tr> <tr class=odd><td align=center>11</td><td>MCLK</td><td>Output</td></tr> <tr class=odd><td align=center>22</td><td>TX</td><td>Output</td></tr> <tr class=odd><td align=center>23</td><td>LRCLK</td><td>Output</td></tr> </table> <p>Audio from master mode I2S may be used in the same project as ADC, DAC and PWM signals, because all remain in sync to Teensy's timing</p> <h3>Examples</h3> <p>Nearly all the examples use this object. Here are some of the highlights:</p> <p class=exam>File > Examples > Audio > HardwareTesting > PassThroughStereo </p> <p class=exam>File > Examples > Audio > SamplePlayer </p> <p class=exam>File > Examples > Audio > Recorder </p> <p class=exam>File > Examples > Audio > WavFilePlayer </p> <p class=exam>File > Examples > Audio > Effects > Chorus </p> <p class=exam>File > Examples > Audio > Synthesis > PlaySynthMusic </p> <h3>Notes</h3> <p>Normally, this object is used with the Audio Shield, which is controlled separately by the "sgtl5000" object.</p> <p>Only one I2S input and one I2S output object may be used. Master and slave modes may not be mixed (both must be of the same type). </p> </script> <script type="text/x-red" data-template-name="AudioOutputI2S"> <div class="form-row"> <label for="node-input-name"><i class="fa fa-tag"></i> Name</label> <input type="text" id="node-input-name" placeholder="Name"> </div> </script>