Open santiagopm opened 2 years ago
You're absolutely correct, the brighter the lights the higher the electrical noise. I had noticed the same problem. This can be overcome somewhat by using a fairly large capacitor across the 5V line. A 10V cap should be fine, but I normally use 16V or above just because I don't trust the crappy capacitors that I have. If you have a good brand name cap, 10V will be fine. Thanks for your comment.
If you add WiFi to the mix, then life gets even more difficult, as it interferes with the 12 bit A/D on the ESP32.
Caveat: We did so on our sound reactive fork of WLED and it's a real challenge.
PS, Hi Scott!
First of all I must say I'm a total noob, but this is my sugestion. When I implemented the MAX4466 the results were very strange and in abslute not what I expected to it must be. Then I noticed that if I reduce the leds bright it was much better, so I supposed there wre something about power supply of the MAX446. I powered the mic with 5v instead of the 3.3v taken from the ESP32 board, but the same problem appears again. The solution was to put a 1000uF 10v capacitor, now works prefect (power the mic with 5v).