Introduction
Connect a piezo speaker to a Bit Board and control it with code.
We'll explore how we can make sounds using a piezo speaker.
Video Overview
Featured Document
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We'll use Maker Tape to connect the Piezo to the Bit Board on a LEGO baseplate.
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The Piezo will connect to Pin 8 and to Ground (GND).
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You'll notice the Ground on the Bit Board (as well as the Piezo and other Crazy Circuits components we'll use) is color coded White.
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If you've never used a micro:bit before you'll want to check out this guide: Bit Board V2 Setup and Use
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We're going to load the following code for our Piezo Tones program: https://makecode.microbit.org/_XoAM1xXYE...
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We'll play some various tones, with a pause between each one, and finally use the stop all sounds block to make sure the last one doesn't keep playing!
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Note that we've set our audio pin to P8, and also have the set built-in speaker block to on. This means the sound will play on the Crazy Circuits Piezo as well as the micro:bit's built-in piezo.
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Once the code is loaded it should start running immediately.
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You can power the micro:bit via the USB cable you used to load the code or you can use a battery pack plugged into the Bit Board.
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The micro:bit will use the repeat block to play four tones four times, then stop all the sounds for 10 seconds, and repeat.
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Follow along with our recorded Live Stream!
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You can watch the full video of us walking through this project, along with explaining and exploring the code: https://www.youtube.com/live/3olw8CrFukM...
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Attached Documents
