AudioCodec - Output Sine Wave

Materials

  • AmebaD [ AMB21 / AMB22 / AMB23 / AW-CU488 Thing Plus ] x 1

  • 3.5mm TRS/TRRS breakout x 1 (e.g., Adafruit 2791 / Sparkfun 11570) x 1

Example

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

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

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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.