I don't really know how much dynamic range I'll need. I'm putting the ESP32 board into an existing enclosure with an amplifier and speaker. 8 bits will probably suffice but I'm curious as to whether I can find a better way given all of the nice hardware on the chip.

It can be extremely hackish. This is a one-off project. I thought about using two 8 bit DACs and resistors. Just getting two good bits from the second DAC would require better than .1% divider accuracy. Unless I'm missing something that would be tough to do. The PWM output might be the best way to g...

I need to generate a beep, that is a sine wave in the 300-1200 Hz range. I also need to control the amplitude. This will feed an audio amplifier. I know I could do it using the DAC and a timer but that's 8 bits and I'd prefer higher quality. My goal is to use the minimum number of components so I do...