A few small prototyping areas
§Any free space around the board was turned into a
prototyping area
§All holes with square pads are ground.
§Holes with a white circle on the stenciled side of the
board are special. One white circle hole is 3.3 V from the FTDI chip, the
other is directly connected to
the 5.1 mm barrel power supply connector.
§Holes in the lower left corner (by the pushbutton) with
a white line between them
on the stenciled side are connected together.
