❷
LOGIBUZZER
We can use another type of feedback loop to make
a Logibuzzer.
Put the blocks together as shown. Connect the
Jack Plug wires to the terminals of the OUT
block. Plug the Jack Plug into the IN. If there
is enough light shining onto the LIGHT
SWITCH the blocks will buzz.
Now cover the lens of the LIGHT
SWITCH with a loose
Logibloc and the
buzzing will stop. If
anyone takes the loose
block away the alarm
will sound again.
32
❸
LIGHT FEEDBACK
Here we are using a RED LIGHT (LED) to shine back at a LIGHT
SWITCH (LDR) to complete the feedback loop.
Now move the LED away from the LDR or place a piece
of card in between and see how the flashing stops.
To make this work you will
need to make the LED as
bright as possible. If you
have trouble, try it with a 9V
power supply using the
BATTERY CONNECTOR.
(see page 40)
Содержание Super Inventor's
Страница 1: ...I N V E N T O R S M A N U A L ...
Страница 2: ......
Страница 24: ... y y 24 ...
Страница 25: ...25 MOTHER SHIP Support the Mother Ship in three places using the BATTERY BOX and the two CORNER blocs ...
Страница 27: ... yy yy yy yy 27 CONTROL SHIP Now use your Logimagination to design and build your own spacecraft ...