Update hardware_hookup.md

Author: bboyho

docs/hardware_hookup.md

@@ -379,3 +379,22 @@ The table below shows how to connect the SparkFun IoT RedBoard - ESP32 to the VR
     </tr>
   </table>
 </div>
+
+!!! note
+    For users that are using a MicroMod Machine Learning Board with an MicroMod Artemis Processor, you will need to redefine a few pins. We recommend redefining the following pins in the example code.
+
+    ``` c++
+    #define BNO08X_CS   PWM0
+    #define BNO08X_INT  D0
+    #define BNO08X_RST  D1
+    ```
+
+    Note that SPI_CS on the MicroMod Machine Learning Board is only routed to the CS pin for the microSD card. D0 is also used as the CS pin for the on-board camera via SPI. D0 will work but if you are using a camera, then this would cause a conflict. A good alternative pin to use in this case would be PWM1.
+
+    ``` c++
+    #define BNO08X_CS   PWM0
+    #define BNO08X_INT  PWM1
+    #define BNO08X_RST  D1
+    ```
+
+    Additionally, A0 and A1 are meant to be only used as input pins and for ADC. THe MicroMod Artemis Processor has op amps and scaling from 3.3V to 3V on both of those analog pins.