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[marcel-licence]

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[matt-mcclintock]

Hi! I am having issues with setting up the esp32 Audio kit to work as the fm synth. I saw you combined the sampler project with the fm synth and followed your video as a guide. The issue I am having is that I cannot seem to get the device to work (I’m trying to test it with a virtual midi keyboard in cakewalk to see if everything works), there is no sound or an indication that it’s working.

[marcel-licence]

Hi, you could try to activate the NoteOn call in the setup function. That might be helpful to ensure that the device is able to produce sound. In addition to that a look on the debug output might also help. In case you have another Audio Kit variant as expected.

[matt-mcclintock]

I am still having issues. I followed along with your guide on setting up the esp32 audio kit v2.2 as a sampler but instead tried flashing the fm synth code. I have made sure that the libraries are up to date and I followed everything but it seems the device is still not functioning. I believe my model is the one with the ac101 audio dac as it does not have the gold antenna on the esp32 module. Is there any way you could help.

[marcel-licence]

In that case it looks like the ES8388 is on your board. As a first step you can look the the I2C scanner and use:

#define I2C_SDA 18
#define I2C_SCL 23

If the codec has been found #define ES8388_ENABLED should be enabled

In some case #define ES8388_PIN_SCLK 5 should be replaced by #define ES8388_PIN_SCLK 27

I think I will also update this project soon to include the different board configuration files like in other projects.

[matt-mcclintock]

Okay, I will give this a try today. Thank you for all your help and making all of this available.

[marcel-licence]

Hi, I've updated the code. Now you will find a lot of known configurations in board_audio_kit_es8388.h. You can choose differen I2C and also different I2S settings. It looks like there are a lot of different configurations in use.