User Manual

Turn on the slide switch (S1). Three LEDs are flashing and you hear a
machine gun sound.
Turn on the slide switch (S1). Six LEDs (including three in
the disco motor (DM)) are flashing and you hear a machine
gun sound.
The blue LED in the disco motor may be dim.
-46-
Project 112
Tri-Light Machine Gun
Project 113
Hex-Light Machine Gun
The lower-right snap of the alarm IC is like an
electrical gate, opening and closing quickly to
let small bursts of electric current flow in. The
bursts of electric current also flow through the
green, yellow, & red LEDs (lighting them) and
the speaker (which produces sound). The
alarm IC produces the different siren sounds
by adjusting the pattern of current bursts
through the speaker.