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September 20, 2018

Learn: Sound Meter Using a Microphone

OVERVIEW

You will design a meter that can measure how load a sound is.

PART 1: DESIGN THE CIRCUIT

PART 2: CREATE THE SCRIPT

STEP 1: Measure the sound level

STEP 2: Display a sound level

  1. Add an LED and resistor to your circuit.
  2. Modify your program so the LED lights up when the sound level is above a certain level.

STEP 3: Display several sound levels

  1. Add two more LEDs and resistors to your circuit.
  2. Modify your program so when a sound gets louder, more LEDs light up.
  3. Try playing music and see how the LEDs light up. 

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