Wiring the clock
If you are not going to use the backlight PCB,
you can as well skip this step.
Connect two 3 pole socket headers together
using 10 cm of green, black and red wire.
Insulate the solder joints using 14 mm pieces of
3.2 mm heat shrink tube.
Connect a 2 pole socket header to the push
button using 5 cm of black and red wire.
Insulate the solder joints using 14 mm pieces of
3.2 mm heat shrink tube.
Solder 5 cm pieces of black and red wire to the
DC connector. Insulate the solder joints using 14
mm pieces of 3.2 mm heat shrink tube. Strip the
other ends of the wires but do not tin them.
Solder the wires of the buzzer to a 2 pole socket
header. Insulate the solder joints using 14 mm
pieces of 3.2 mm heat shrink tube.