3c. Attach the spool to the
gearmotor shaft. Mount the
gearmotor to the back leg
of the sawhorse on the lever
side with the motor shaft
parallel to the hinges.
3c
3d. Solder a 3' wire to each
gearmotor terminal, then tie
the free end of the fishing line
around the spool (the other
end should already be tied to
the tilt lever) and hot-glue it
down so it doesn’t slip.
NOTES: The characteristics
of the motor and spool that
you use will dictate how you
should mount them. Use
your hacksense to come up
with a good arrangement.
You may need to add brackets, rollers, or other extra
components.
3d
3c
4.ADD THE LECTRONICS
4a. Assemble the RBBB
(Arduino clone) kit according
to the supplied instructions,
but substitute a 7805 voltage
regulator for the included
L4931CZ50 regulator in the
spot marked “VR.” Solder the
L298N motor controller to
its breakout board.
4a
4b. Plug the RBBB into the
stripboard, perpendicular
to the strips underneath.
Use pin headers to solder
the L298N breakout board
alongside it so the Arduino
D6 and D7 pins connect
to the L298N IN2 and IN1,
respectively.
If you’re making the arcade
console, fit an RJ45 jack
onto an RJ45 breakout
board and solder pin headers to plug it into another
corner of the stripboard, so
that an Ethernet cable can
plug in at the board’s edge.
RJ45 Breakout
MCP23017
4c. Insert the MCP23017
16-bit I/O expander chip
alongside so RJ45 pins 2–8
line up and connect with the
I/O chip’s pins 1–7 in reverse
order (e.g. RJ45 pin 8 to chip
pin 1, RJ45 pin 7 to chip pin
2, etc.). The I/O chip’s pins 12
and 13 will connect to Arduino
pins A5 and A4. 4c
8
7
6
5
4
3
2
1
GND Vcc
GND
1
2
3
4
5
6
7
8
9
10
11
12
13
14
28
27
26
25
24
23
22
21
20
19
18
17
16
15
Vcc
Arduino A5
Arduino A4
GND
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