LET’S GET THE LOGIBLOCS TO WORK
As you have seen, using the IN and joining the two wires from the Jack Plug
together, you can trigger the Logiblocs into action. We will now use this sys-
tem to make the Door Alarm, a Security Mat and the Water Bleeper.
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DOOR ALARM
You will need a small strip of aluminium foil and some sticky tape.
Step 1
Take the two wires and place
them near the bottom of the
door surround with their ends
sticking out so that the door will
brush past them when it is
opened. Stick the two wires
on with sticky tape.
Stick your “Alarmed” sticker on the door to tell people that you are alarmed !
Don’t forget to disconnect the BATTERY BOX when you are not using the
Logiblocs to make the batteries last as long as possible !
8
Step 2
Shape a strip of aluminium foil
around the edge of the door
itself, at the height of the two
wires. When the door opens,
the aluminium foil will touch
both wires which should trigger
the Logiblocs into action. This
is called completing the circuit.