Logiblocs Super Inventor's Inventors Manual page 11

Step 8
This time, replace the BLEEP with the OUT block and
hear it click. You could use this as a metronome to keep
your music in time!
We can use the OUT block to switch other
things, such as light bulbs and motors,
on and off. Note that this external circuit
needs its own seperate power supply.
OUT
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Step 9
Add on the SEQUENCER block as shown.
Notice how the SEQUENCER lights come on and
off one after another. Put the PULSE on full speed
by twisting the knob fully clockwise.
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SEQUENCER
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