[Meggy Jr RGB]
[15]
STEP 13: Battery Box, Power Source Jumper,...
Part
#21
is a 3 x AAA battery box w/ switch
The wires from the battery box go to the holes that are (on the
top of the board) labeled VCC_IN (red wire) and GND_IN (black
wire).
They enter the board
from the back side
(where those two holes
are labeled “+” and “-”) and are soldered on the top side.
The wires supplied are longer than necessary, given the position
that the battery box sits in (see photo). But, if you happen to have a
pair of wire strippers handy, you can cut the wires a bit shorter
before attaching them. (See also step 16.)
(From back side)
After soldering the wires, it is
recommended to cover the
point where they enter the
board with a small glob of hot
glue, to provide strain relief.
(
RED
wire)
(
BLA
CK
wire)
Part
#22
is a small header jumper
Connect the jumper over the left two pins of
J3 when running Meggy Jr off of batteries, or
over the two right pins to draw power from
an external source like an ac adapter.
Note
: J4 is a location to install a
power jack on the reverse side
of the board. Your ac adapter
should output for 4.5 - 5 V dc,
regulated, center-positive, with
at least 600 mA capacity.
