+
+The module can be configured by sending a string of form ":Shhh." over the
+serial port, where hhh is a hex number. Lower two bits indicate the number of
+inputs (00=4, 01=8, 10=12, 11=16) and upper ten bits indicate offset of lowest
+input in multiples of 4 bits. At the moment there are no provisions for
+having 16 physical inputs.
+
+Example: ":S016." would configure the module to have 12 inputs at offset 20.