I have a project that makes sound alerts, both on the 2020 and 2019.
Testing with the external DAC on the 2020 all good.
Moving on the internal DAC of the 2019, it produces a weak/high pitch noise much shorter than the expected sound.
Now, I don't need quality and I can use the non DAC mode on the 2019.
But my problem is that the volume is VERY LOW. It's barely audible.
I used the example PlayMP3FromPROGMEM.ino
I did call ttgo->enableLDO3(); and I expected this would trigger on the amplifier I can see here:
Is there something I'm missing?
Is there a PWM for the amplifier I could have put to 0...?
Hi!
I have a project that makes sound alerts, both on the 2020 and 2019. Testing with the external DAC on the 2020 all good.
Moving on the internal DAC of the 2019, it produces a weak/high pitch noise much shorter than the expected sound. Now, I don't need quality and I can use the non DAC mode on the 2019.
But my problem is that the volume is VERY LOW. It's barely audible. I used the example
PlayMP3FromPROGMEM.inoI did callttgo->enableLDO3();and I expected this would trigger on the amplifier I can see here:Is there something I'm missing? Is there a PWM for the amplifier I could have put to 0...?