Lesson28- How to use KC868-A4 (ESP32) DAC output DC 0-10V by ESPHome

[bas_vdl]

So any idea? Why can't get 10V ?
On your video about DAC is 9,5V. It's max?

Were you able to solve it? I'm looking into this board to control my gas fireplace which needs 0v (off) and 10v (2 burners, high flames).

Thanks!

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1. you can check your PCB 3.3v Vcc pin whether is well. whether it's 3.3v value.
now R37,R38,R47,R49 all are 10K resistance.
if use 20K resistance , MAX DAC voltage should be: 3.3v * (1 + 20K/10K) = 9.9V
2. if Vcc is 3.3v work well , you can try to replace 20K resistance to 22K for a test.  it should be output MAX 10.05V

Hi, I have a couple of questions, hope you find the time.

Which is one the Vcc pin?

And where i should put the 20k or 22k resistance?

And will it also be able to produce 0V?

Thanks!