Data Sheet

83 : circuit 4c
POINTERS: As an advanced
programming topic, pointers can be
difficult to understand at first. For now,
think of pointers as a variable that
“points” to the value contained in a certain
address in memory. In this sketch, the
char* variable points to arrayOfStrings
address and returns the character values to
create a list of strings.
BATTERY HOLDER
ASSEMBLY
Batteries are polarized. They have a
positive end and a negative end. The
battery holder has images indicating which
end goes in which orientation for each cell.
To attach the battery holder to the
breadboard baseplate, first cut two strips of
Dual Lock that are roughly 1 inch x 1 inch
each, or 2.5cm x 2.5cm.
Remove the adhesive backing, and attach
one piece to the back of the battery holder.
Adhere the second piece to the bottom of
the breadboard baseplate (directly in the
middle is recommended, as this will come
into play in Project 5).
Last, press the battery holder to the
baseplate so that the two pieces of Dual
Lock snap together. Insert the batteries into
the holder. Remember that batteries are
polarized. Remove the pack before building
the circuit, so it doesn’t slide around.
STOP!
Disconnect the battery pack from
power while building your circuit.
Working on your circuit while
connected to a power source risks
damaging your components.