Step 2
Tape one of the wires to the corner of the foil with sticky tape.
Glue the strips of cardboard around the edge to form a spacer.
Tape the second wire to the corner of the foil on the other card.
Place (do not stick) the second card on top of the spacer
to make a sandwich.
Step 3
Join the blocks together as shown for the Door Alarm and connect
the battery and plug in the Jack Plug.
Step 4
Tap the sandwich you have made. When the two pieces of foil touch,
the circuit is completed and the Logiblocs should be triggered. If the
aluminium foil sheets in the sandwich are touching too easily then add another
spacer or two. When you are happy with the sandwich, stick down the top
piece of cardboard to the spacers.
You have now made a pressure mat. Hide the Logiblocs and place
the mat under carpets and surprise your friends when they step in
the wrong place ! The Alarm will sound for a few seconds each time
the mat is pressed.
If you want the mat just to give a short beep then remove the DELAY from
the system. Remember to disconnect the battery when you are not using
the Logiblocs to save the battery !
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Step 3
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.
Stick your “Alarmed” sticker on the door to tell people that you are alarmed !
Don’t forget to disconnect the battery when you are not using the Logiblocs
to make it last as long as possible ! If you find it easier, you only need to
unplug the BATTERY CONNECTOR block from the LOGIBLOCS to stop
the battery working.
❷
SECURITY MAT
You will need some aluminium foil, scissors, glue, some cardboard and some
sticky tape. You can use the two pieces of card provided but you may
prefer to keep these for use as attractive mouse mats !
Step 1
Cut out two pieces of card or cardboard 20cm x 15cm.
Stick two pieces of aluminium foil to one side of each piece of card.
Cut out four strips of cardboard to go right around the edge
of one piece of card.
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