<tr><td>Component</td><td>Details</td><td>Voltage DC</td><td>milliamps</td><td>Analog or Digital</td><td>Hz Polling frequency</td><td>Interface format</td><td>Data pins</td><td>Requires clock</td><td>Generates interrupts</td></tr>
+
<tr><td>carbon dioxide sensor</td><td>Parallax 27929</td><td>6.5 to 15</td><td>160</td><td>Digital</td><td>> 2</td><td>SIP</td><td>MOSI and MISO</td><td>Yes</td><td>No</td></tr>