More Sound Effects

Project Number: 46

OBJECTIVE: To investigate the different sound effects available from the alarm integrated circuit.

Description: Build the circuit shown on the left. When you close the slide switch (S1), the integrated circuit (U2) should start sounding an up-down siren. This is just one more sound effect that this integrated circuit is designed to produce. Different sounds that can easily be changed are very important when designing games and toys. Switch the sound on and off quickly to see if you can create even different effects. This mode will create many robotic sounds if switched quickly.