Project #449
Bird Sounds (III)
OBJECTIVE: To create bird sounds.
Use the circuit in project 447. Connect the whistle chip (WC) across
points A & B and the sound changes.
Project #451
Bird Sounds (V)
OBJECTIVE: To create bird sounds.
Connect the whistle chip (WC) across points C & D.
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Project #447
Bird Sounds
OBJECTIVE: To create bird sounds.
Turn on the switch (S1). The circuit makes a bird sound.
Project #448
Bird Sounds (II)
OBJECTIVE: To create bird sounds.
Use the circuit in project 447. Replace the 100µF (C4) capacitor with the
10µF capacitor (C3), the tone should be much higher. Now use the
470µF capacitor (C5) and hear how low the tone gets.
Project #450
Bird Sounds (IV)
OBJECTIVE: To create bird sounds.
Use the circuit in project 447. Connect the whistle chip (WC) across
points B & C.
Project #452
Touch-Control
Bird Sound
OBJECTIVE: Show variations of project 447.
Use the circuit in project 447. Replace the 100kΩ resistor (R5) with the
photo resistor (RP). Wave your hand over the resistor and the sound
changes. With the photo resistor installed, redo projects 448 - 452.
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