add MacArthur HAT to MAIANA

maiana/connecting.rst

@@ -9,8 +9,9 @@ Connecting the base kit
 #. USB + UART adapter. Not included with the MAIANA base kit.
 #. USB + RS422 Adapter. Not included with the MAIANA base kit.
 #. USB + CAN Adapter. Not included with the MAIANA base kit.
+#. MacArthur HAT. Not included with the MAIANA base kit.
 
-After the MAIANA base kit assembly process, you need to connect it to your boat via the Cat5 ethernet cable to power it, to get AIS/GNSS data and to configure the device. You have 4 options: the Breakout board or the USB+UART, USB+RS422 and USB+CAN adapters.
+After the MAIANA base kit assembly process, you need to connect it to your boat via the Cat5 ethernet cable to power it, to get AIS/GNSS data and to configure the device. You have 5 options: the Breakout board, the USB+UART, USB+RS422 and USB+CAN adapters or the MacArthur HAT.
 
 
 Breakout board
@@ -47,3 +48,13 @@ USB + CAN Adapter
 USB connection is used to get AIS/GNSS data, configure the device or update the firmware. CAN connection is used only to send AIS/GNSS data to the NMEA 2000 network of your boat and power the device. This adapter incorporates status LEDs, switches and is soldered and assembled.
 
 .. image:: img/usb-can-adapter.png
+
+MacArthur HAT
+*************
+
+This HAT has the same features as all MAIANA AIS adapters together. You can receive AIS and GNSS data and configure the MAIANA transponder in OpenPlotter through the UART0 interface. You can also send NMEA
+0183, NMEA 2000 or Signal K data to any device on your boat.
+
+.. image:: img/macarthur.png
+
+Read the "MAIANA AIS" chapter of the `MacArthur HAT manual <https://raw.githubusercontent.com/OpenMarine/MacArthur-HAT/main/Documentation_low.pdf>`_ to see all connection options.