Update design tool object list and documentation

gui/index.html

 	{"nodes":[
 		{"type":"AudioInputI2S","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputI2SQuad","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_quad","inputs":0,"outputs":4,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputI2SHex","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_hex","inputs":0,"outputs":6,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputI2SOct","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_oct","inputs":0,"outputs":8,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputI2S2","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s2","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputSPDIF3","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AsyncAudioInputSPDIF3","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif_async","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputAnalog","data":{"defaults":{"name":{"value":"new"}},"shortName":"adc","inputs":0,"outputs":1,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputAnalogStereo","data":{"defaults":{"name":{"value":"new"}},"shortName":"adcs","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
-		{"type":"AudioInputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputPDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"pdm","inputs":0,"outputs":1,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputTDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm","inputs":0,"outputs":16,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioInputTDM2","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm2","inputs":0,"outputs":16,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioInputUSB","data":{"defaults":{"name":{"value":"new"}},"shortName":"usb","inputs":0,"outputs":2,"category":"input-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+
 		{"type":"AudioOutputI2S","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputI2SQuad","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_quad","inputs":4,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputI2SHex","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_hex","inputs":6,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputI2SOct","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s_oct","inputs":8,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputI2S2","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2s2","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputSPDIF","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputSPDIF2","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif2","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputSPDIF3","data":{"defaults":{"name":{"value":"new"}},"shortName":"spdif3","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputPT8211","data":{"defaults":{"name":{"value":"new"}},"shortName":"pt8211","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputPT8211_2","data":{"defaults":{"name":{"value":"new"}},"shortName":"pt8211_2","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputAnalog","data":{"defaults":{"name":{"value":"new"}},"shortName":"dac","inputs":1,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputAnalogStereo","data":{"defaults":{"name":{"value":"new"}},"shortName":"dacs","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputPWM","data":{"defaults":{"name":{"value":"new"}},"shortName":"pwm","inputs":1,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
-		{"type":"AudioOutputI2Sslave","data":{"defaults":{"name":{"value":"new"}},"shortName":"i2sslave","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputMQS","data":{"defaults":{"name":{"value":"new"}},"shortName":"mqs","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputTDM","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm","inputs":16,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+		{"type":"AudioOutputTDM2","data":{"defaults":{"name":{"value":"new"}},"shortName":"tdm2","inputs":16,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputADAT","data":{"defaults":{"name":{"value":"new"}},"shortName":"adat","inputs":8,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioOutputUSB","data":{"defaults":{"name":{"value":"new"}},"shortName":"usb","inputs":2,"outputs":0,"category":"output-function","color":"#E6E0F8","icon":"arrow-in.png"}},
+
 		{"type":"AudioAmplifier","data":{"defaults":{"name":{"value":"new"}},"shortName":"amp","inputs":1,"outputs":1,"category":"mixer-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioMixer4","data":{"defaults":{"name":{"value":"new"}},"shortName":"mixer","inputs":4,"outputs":1,"category":"mixer-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		{"type":"AudioPlayMemory","data":{"defaults":{"name":{"value":"new"}},"shortName":"playMem","inputs":0,"outputs":1,"category":"play-function","color":"#E6E0F8","icon":"arrow-in.png"}},
 		or another I2S device, using I2S master mode.</p>
 	<p align=center><img src="img/audioshield_inputs.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<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>T3.x<br>Pin</th><th>T4.0<br>Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=top><th>T3.x<br>Pin</th><th>T4.x<br>Pin</th><th>Signal</th><th>Direction</th></tr>
 		<tr class=odd><td align=center>9</td><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
 		<tr class=odd><td align=center>11</td><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
 		<tr class=odd><td align=center>13</td><td align=center>8</td><td>RX</td><td>Input</td></tr>
 		or another I2S devices, using I2S master mode.</p>
 	<p align=center><img src="img/audioshield_quad_in.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<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>Teensy<br>3.2 Pin</th><th>Teensy<br>3.5/3.6 Pin</th><th>Signal</th><th>Direction</th></tr>
-		<tr class=odd><td align=center>9</td><td align=center>9</td><td>BCLK</td><td>Output</td></tr>
-		<tr class=odd><td align=center>11</td><td align=center>11</td><td>MCLK</td><td>Output</td></tr>
-		<tr class=odd><td align=center>13</td><td align=center>13</td><td>RX</td><td>Input</td></tr>
-		<tr class=odd><td align=center>30</td><td align=center>38</td><td>RX</td><td>Input</td></tr>
-		<tr class=odd><td align=center>23</td><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
+		<tr class=top><th>Teensy<br>3.2<br>Pin</th><th>Teensy<br>3.5/3.6<br>Pin</th><th>Teensy<br>4.x<br>Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>9</td><td align=center>9</td><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>11</td><td align=center>11</td><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>13</td><td align=center>13</td><td align=center>8</td><td>RX</td><td>Input</td></tr>
+		<tr class=odd><td align=center>30</td><td align=center>38</td><td align=center>6</td><td>RX</td><td>Input</td></tr>
+		<tr class=odd><td align=center>23</td><td align=center>23</td><td align=center>20</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
 	<p class=exam>File &gt; Examples &gt; Audio &gt; HardwareTesting &gt; PassThroughQuad
 	</p>
 	<h3>Notes</h3>
+	<p>On Teensy 3.x, the BCLK/LRCLK ratio is 32, which is not compatible with
+		most MEMS microphones.  Teensy 4.x uses BCLK/LRCLK ratio, which can
+		be used with I2S MEMS microphones.</p>
 	<p>Normally, this object is used with two Audio Shield, which
 		are controlled separately by a pair "sgtl5000" object.</p>
 </script>
 	</div>
 </script>
 
+<script type="text/x-red" data-help-name="AudioInputI2SHex">
+	<h3>Summary</h3>
+	<div class=tooltipinfo>
+	<p>Receive 6 channel audio from three I2S devices, using I2S master mode.</p>
+	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
+	<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>Out 0</td><td>Channel #1</td></tr>
+		<tr class=odd><td align=center>Out 1</td><td>Channel #2</td></tr>
+		<tr class=odd><td align=center>Out 2</td><td>Channel #3</td></tr>
+		<tr class=odd><td align=center>Out 3</td><td>Channel #4</td></tr>
+		<tr class=odd><td align=center>Out 4</td><td>Channel #5</td></tr>
+		<tr class=odd><td align=center>Out 5</td><td>Channel #6</td></tr>
+	</table>
+	<h3>Functions</h3>
+	<p>This object has no functions to call from the Arduino sketch.  It
+		simply streams data from the I2S hardware to its 6 output ports.</p>
+	<h3>Hardware</h3>
+	<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>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>8</td><td>RX (ch 1+2)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>6</td><td>RX (ch 3+4)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>9</td><td>RX (ch 5+6)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>20</td><td>LRCLK</td><td>Output</td></tr>
+	</table>
+	<h3>Examples</h3>
+	<!--<p class=exam>File &gt; Examples &gt; Audio &gt; HardwareTesting &gt; PassThroughQuad
+	</p>-->
+	<h3>Notes</h3>
+	<p>Teensy 4.0 &amp; 4.1's I2S port has a total of 5 data pins
+		which may each transmit or receive stereo digital audio.  This
+		6 channel input may be used together with the I2S stereo or
+		quad channel I2S output, but may not be combined with others
+		which use the same physical pins.</p>
+</script>
+<script type="text/x-red" data-template-name="AudioInputI2SHex">
+	<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>
+
+<script type="text/x-red" data-help-name="AudioInputI2SOct">
+	<h3>Summary</h3>
+	<div class=tooltipinfo>
+	<p>Receive 8 channel audio from three I2S devices, using I2S master mode.</p>
+	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
+	<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>Out 0</td><td>Channel #1</td></tr>
+		<tr class=odd><td align=center>Out 1</td><td>Channel #2</td></tr>
+		<tr class=odd><td align=center>Out 2</td><td>Channel #3</td></tr>
+		<tr class=odd><td align=center>Out 3</td><td>Channel #4</td></tr>
+		<tr class=odd><td align=center>Out 4</td><td>Channel #5</td></tr>
+		<tr class=odd><td align=center>Out 5</td><td>Channel #6</td></tr>
+		<tr class=odd><td align=center>Out 6</td><td>Channel #7</td></tr>
+		<tr class=odd><td align=center>Out 7</td><td>Channel #8</td></tr>
+	</table>
+	<h3>Functions</h3>
+	<p>This object has no functions to call from the Arduino sketch.  It
+		simply streams data from the I2S hardware to its 8 output ports.</p>
+	<h3>Hardware</h3>
+	<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>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>8</td><td>RX (ch 1+2)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>6</td><td>RX (ch 3+4)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>9</td><td>RX (ch 5+6)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>32</td><td>RX (ch 7+8)</td><td>Input</td></tr>
+		<tr class=odd><td align=center>20</td><td>LRCLK</td><td>Output</td></tr>
+	</table>
+	<h3>Examples</h3>
+	<!--<p class=exam>File &gt; Examples &gt; Audio &gt; HardwareTesting &gt; PassThroughQuad
+	</p>-->
+	<h3>Notes</h3>
+	<p>Teensy 4.0 &amp; 4.1's I2S port has a total of 5 data pins
+		which may each transmit or receive stereo digital audio.  This
+		8 channel input may be used together with the I2S stereo
+		output, but may not be combined with others
+		which use the same physical pins.</p>
+</script>
+<script type="text/x-red" data-template-name="AudioInputI2SOct">
+	<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>
+
+<script type="text/x-red" data-help-name="AudioInputI2S2">
+	<h3>Summary</h3>
+	<div class=tooltipinfo>
+	<p>Receive 16 bit stereo audio from an I2S device using the 2nd I2S port on Teensy 4.x.</p>
+	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
+	<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>Out 0</td><td>Left Channel</td></tr>
+		<tr class=odd><td align=center>Out 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 the I2S hardware to its 2 output ports.</p>
+	<h3>Hardware</h3>
+	<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>T4.x<br>Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>4</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>33</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>5</td><td>RX</td><td>Input</td></tr>
+		<tr class=odd><td align=center>3</td><td>LRCLK</td><td>Output</td></tr>
+	</table>
+	</p>
+	<h3>Examples</h3>
+	<h3>Notes</h3>
+</script>
+<script type="text/x-red" data-template-name="AudioInputI2S2">
+	<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>
+
+
 <script type="text/x-red" data-help-name="AudioInputAnalog">
 	<h3>Summary</h3>
 	<div class=tooltipinfo>
 	<p>Receive audio using the built-in analog to digital converter.</p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0 - experimental
+	<li>Teensy 4.1 - experimental
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<div class=tooltipinfo>
 	<p>Receive stereo audio using the built-in analog to digital converters.</p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>Receive 16 bit stereo audio from an I2S device using I2S slave mode
 		(where the ADC or codec chip, not Teensy, controls audio timing).</p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>The I2S signals are used in "slave" mode, where the I2S device controls
 		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>Input</td></tr>
-		<tr class=odd><td align=center>13</td><td>RX</td><td>Input</td></tr>
-		<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Input</td></tr>
+		<tr class=top><th>Teensy<br>3.x Pin</th><th>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>9</td><td align=center>21</td><td>BCLK</td><td>Input</td></tr>
+		<tr class=odd><td align=center>13</td><td align=center>8</td><td>RX</td><td>Input</td></tr>
+		<tr class=odd><td align=center>23</td><td align=center>20</td><td>LRCLK</td><td>Input</td></tr>
 	</table>
 	<!--
 <h3>Examples</h3>
 		many audio channels.</p>
 	<p align=center><img src="img/tdm.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		</p>
 	<p align=center><img src="img/pdmmic.jpg"><br><small>PDM MEMS Mic</small></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<!--<li>Teensy 4.0
+	<li>Teensy 4.1-->
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		sound device.</p>
 	<p align=center><img src="img/usbtype_audio_in.png"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		or another I2S device, using I2S master mode.</p>
 	<p align=center><img src="img/audioshield_outputs.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>Transmit quad (4) channel 16 bit audio, using I2S master mode.</p>
 	<p align=center><img src="img/audioshield_quad_out.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<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 (ch 1+2)</td><td>Output</td></tr>
-		<tr class=odd><td align=center>15</td><td>TX (ch 3+4)</td><td>Output</td></tr>
-		<tr class=odd><td align=center>23</td><td>LRCLK</td><td>Output</td></tr>
+		<tr class=top><th>T3.x<br>Pin</th><th>T4.x<br>Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>9</td><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>11</td><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>22</td><td align=center>7</td><td>TX (ch 1+2)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>15</td><td align=center>32</td><td>TX (ch 3+4)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td align=center>20</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
 	</div>
 </script>
 
+<script type="text/x-red" data-help-name="AudioOutputI2SHex">
+	<h3>Summary</h3>
+	<div class=tooltipinfo>
+	<p>Transmit 6 channel 16 bit audio, using I2S master mode.</p>
+	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
+	<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>Channel #1</td></tr>
+		<tr class=odd><td align=center>In 1</td><td>Channel #2</td></tr>
+		<tr class=odd><td align=center>In 2</td><td>Channel #3</td></tr>
+		<tr class=odd><td align=center>In 3</td><td>Channel #4</td></tr>
+		<tr class=odd><td align=center>In 4</td><td>Channel #5</td></tr>
+		<tr class=odd><td align=center>In 5</td><td>Channel #6</td></tr>
+	</table>
+	<h3>Functions</h3>
+	<p>This object has no functions to call from the Arduino sketch.  It
+		simply streams data from its 6 input ports to the I2S hardware.</p>
+	<h3>Hardware</h3>
+	<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>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>7</td><td>TX (ch 1+2)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>32</td><td>TX (ch 3+4)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>9</td><td>TX (ch 5+6)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>20</td><td>LRCLK</td><td>Output</td></tr>
+	</table>
+	<h3>Examples</h3>
+	<h3>Notes</h3>
+	<p>Teensy 4.0 &amp; 4.1's I2S port has a total of 5 data pins
+		which may each transmit or receive stereo digital audio.  This
+		6 channel output may be used together with the I2S stereo or
+		quad channel I2S input, but may not be combined with others
+		which use the same physical pins.</p>
+</script>
+<script type="text/x-red" data-template-name="AudioOutputI2SHex">
+	<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>
+
+<script type="text/x-red" data-help-name="AudioOutputI2SOct">
+	<h3>Summary</h3>
+	<div class=tooltipinfo>
+	<p>Transmit 8 channel 16 bit audio, using I2S master mode.</p>
+	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
+	<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>Channel #1</td></tr>
+		<tr class=odd><td align=center>In 1</td><td>Channel #2</td></tr>
+		<tr class=odd><td align=center>In 2</td><td>Channel #3</td></tr>
+		<tr class=odd><td align=center>In 3</td><td>Channel #4</td></tr>
+		<tr class=odd><td align=center>In 4</td><td>Channel #5</td></tr>
+		<tr class=odd><td align=center>In 5</td><td>Channel #6</td></tr>
+		<tr class=odd><td align=center>In 6</td><td>Channel #7</td></tr>
+		<tr class=odd><td align=center>In 7</td><td>Channel #8</td></tr>
+	</table>
+	<h3>Functions</h3>
+	<p>This object has no functions to call from the Arduino sketch.  It
+		simply streams data from its 8 input ports to the I2S hardware.</p>
+	<h3>Hardware</h3>
+	<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>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>21</td><td>BCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td>MCLK</td><td>Output</td></tr>
+		<tr class=odd><td align=center>7</td><td>TX (ch 1+2)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>32</td><td>TX (ch 3+4)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>9</td><td>TX (ch 5+6)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>6</td><td>TX (ch 7+8)</td><td>Output</td></tr>
+		<tr class=odd><td align=center>20</td><td>LRCLK</td><td>Output</td></tr>
+	</table>
+	<h3>Examples</h3>
+	<h3>Notes</h3>
+	<p>Teensy 4.0 &amp; 4.1's I2S port has a total of 5 data pins
+		which may each transmit or receive stereo digital audio.  This
+		8 channel output may be used together with the I2S stereo
+		input, but may not be combined with others
+		which use the same physical pins.</p>
+</script>
+<script type="text/x-red" data-template-name="AudioOutputI2SOct">
+	<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>
+
+
+
+
 <script type="text/x-red" data-help-name="AudioOutputSPDIF">
 	<h3>Summary</h3>
 	<div class=tooltipinfo>
 	<p>Transmit 16 bit stereo audio as Digital S/PDIF.</p>
 	<p align=center><img src="img/spdif_proto.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		and filtering are automatically used to improve output quality.</p>
 	<p align=center><img src="img/pt8211.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p align=center><img src="img/dac_speaker.jpg"><br>
 	<small><a href="http://www.pjrc.com/store/prop_shield.html" target="_blank_">Prop Shield with 4&ohm; Speaker</a></small></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<!--<p align=center><img src="img/dac_speaker.jpg"><br>
 	<small><a href="http://www.pjrc.com/store/prop_shield.html" target="_blank_">Prop Shield with 4&ohm; Speaker</a></small></p>-->
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		used for coarse and fine pulses, to be combined by scaled
 		resistors.</p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<!--<li>Teensy 4.0
+	<li>Teensy 4.1-->
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>Transmit 16 bit stereo audio to an I2S device using I2S slave mode
 		(where the DAC or codec chip, not Teensy, controls audio timing).</p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>The I2S signals are used in "slave" mode, where the I2S device controls
 		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>Input</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>Input</td></tr>
+		<tr class=top><th>Teensy<br>3.x Pin</th><th>Teensy<br>4.x Pin</th><th>Signal</th><th>Direction</th></tr>
+		<tr class=odd><td align=center>9</td><td align=center>21</td><td>BCLK</td><td>Input</td></tr>
+		<tr class=odd><td align=center>22</td><td align=center>7</td><td>TX</td><td>Output</td></tr>
+		<tr class=odd><td align=center>23</td><td align=center>20</td><td>LRCLK</td><td>Input</td></tr>
 	</table>
 	<h3>Examples</h3>
 	<p class=exam>File &gt; Examples &gt; Audio &gt; HardwareTesting &gt; WM8731MikroSine
 		many audio channels.</p>
 	<p align=center><img src="img/tdm.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 	<p>Transmit ADAT TOSLINK Optical Output</p>
 	<p align=center><img src="img/adat.jpg"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<!--<li>Teensy 4.0
+	<li>Teensy 4.1-->
+	</ul>
+	<p>ADAT output for Teensy 4.0 is discussed on
+	<a href="https://forum.pjrc.com/threads/60914?p=239824&viewfull=1#post239824">this forum thread</a>.</p>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>
 		sound device.</p>
 	<p align=center><img src="img/usbtype_audio_out.png"></p>
 	</div>
+	<h3>Boards Supported</h3>
+	<ul>
+	<li>Teensy 3.2
+	<li>Teensy 3.5
+	<li>Teensy 3.6
+	<li>Teensy 4.0
+	<li>Teensy 4.1
+	</ul>
 	<h3>Audio Connections</h3>
 	<table class=doc align=center cellpadding=3>
 		<tr class=top><th>Port</th><th>Purpose</th></tr>