Ameba Arduino: [RTL8722CSM/RTL8722DM] Audio Codec – Output Sine Wave
- Ameba D [RTL8722 CSM/DM] x 1
- 3.5mm TRS/TRRS breakout x 1 (e.g., Adafruit 2791 / Sparkfun 11570)
Connect the 3.5mm connector to the RTL8722 board following the diagram.
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.