Update notes on Wi-Node Pins List

wi-node/pins.html

@@ -119,8 +119,8 @@ <h2>Notes</h2>
       <ul>
         <li>The following use the SPI Bus (Dig 11/12/13) - ENC28J60, RFM12B, 23K256 and SD Card. They are selected by using their slave select pin, as above.</li>
         <li>The MCP79410 / MCP79411 / MCP79412 RTC/SRAM/MAC chip uses the I2C Bus (A4 & A5).</li>
-        <li>The MCP79411 and MCP79412 have a MAC address on-board so the 11AA02E48 is then not required.</li>
-        <li>The 23K256 SOIC socket and the SD Card use the same slave select pin so only one of these can be fitted at a time. The 23K256 DIP socket is independant so that can be used at the same time as one of them.</li>
+        <li>The 23K256 SOIC and the SD Card are mutually exclusive - you can only use one of these at a time (you can however use the SD card with a 23K256 DIP though)</li>
+        <li>The L293D motor driver is mutually exclusive with the 23K256 SOIC, SD Card, 23K256 DIP and will make the Red LED flash</li>
       </ul>
 
       <p>&nbsp;</p>