AMB21/22/23 Audio Codec - Output Sine Wave

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AMB23 contains a build-in microphone on board. Here are some interesting projects that could be implemented by this sensor.

splendidemendax

Splendide_Mendax

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Wiring Diagram

AMB21 / AMB22 Wiring Diagram:

Connect the 3.5mm connector to the RTL8722 board following the diagram.

AMB23 Wiring Diagram:

As RTL8722DM MINI has a built-in microphone on the board, there is no need for any external microphone.
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Compile and Upload example

Open the example, “Files” -> “Examples” -> “AmebaAudioCodec” -> “OutputSineWave”.

Upload the code and press the reset button on Ameba once the upload is finished.
Connect a pair of wired headphones to the 3.5mm audio jack and you should hear the generate single sinusoidal tone.
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More References
Please visit the following websites for more details about the board & other examples:
- AmebaIoT Official Website: https://www.amebaiot.com/en/
- AmebaIoT Official FB Page: https://www.facebook.com/groups/AmebaIoT
- AmebaIoT Forum: https://forum.amebaiot.com/

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