analog (Max 4466) Mic sometimes won't work in 13.2

[ghpk]

What happened?

I took a fresh ESP32 Board,
Flashed Wled suggested bootloader, then flashed the 13.2 but microphone wont respond.

I had another ESP32 and new MAXX4466 Microphone,
build up the circuit again on another PCB and it wont react to any sound, WLED static effects would work just fine.

Sound Reactive wont work No matter what gain I select,
infact I've made this earlier too and quite comfortable with tinkering settings but it won't work for sound.

To Reproduce Bug

Flash esp32 with currently available latest build and use MAXX4466 microphone it wont work, static effects would work fine though.

Expected Behavior

Wled should react to music.

Same esp32, I flashed SR WLED 0.13.1 and it works fine.
WLED 0.13.1 (build 2203150)

Install Method

Binary from WLED.me

What version of WLED?

WLED 0.13.2 (2207281)

Which microcontroller/board are you seeing the problem on?

ESP32

Relevant log/trace output

No response

Anything else?

No response

Code of Conduct

• I agree to follow this project's Code of Conduct

[CnLm3d]

esp 32 devkit sahibiyim. max 9814 mikrafon ile ben de aynı sorunu yaşıyorum. 36 nolu pinden ölçüm yaptığımda 1,2V ile 1,4V arasında ölçümler alıyorum ancak şans eseri çalıştırsam bile açıp kapattığım anda ses efektleri çalışmıyor.

[softhack007]

In general the MAX4466 does work, but it is very sensitive to voltage fluctuations so not exactly the best device to use.

Did you check that the GPIO is set correctly in sound setting?
https://github.com/atuline/WLED/wiki/Sound-Settings#analog-input-pins

Btw, please try our official release of WLED SR 0.13.2, build 2207301

https://github.com/atuline/WLED/releases/tag/v0.13.2

[Labersack99]

I have the same problem with 3 different Devices, all ESP32 with MAX9814 (GPIO36, Gain+VCC connected).
Tried with Gain, Squelch and AGC setting, nothing worked.
Flashed version 0.12.1-b1 and mic in all three devices is working again.

[softhack007]

Please check if it works when using another GPIO for the microphone input, like GPIO32.

[ghpk]

No, It doesn't considers any GPIO's Tested on both 30 PIN and 38 PIN ESP 32 boards. thanks,

…

On Sun, Sep 18, 2022, 2:47 PM Frank ***@***.***> wrote: Please check if it works when using another GPIO for the microphone input, like GPIO32. — Reply to this email directly, view it on GitHub <#231 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/AJ6FH6TS6LJP6CUNQBSOMK3V63M37ANCNFSM6AAAAAAQNDGU7Y> . You are receiving this because you authored the thread.Message ID: ***@***.***>

[softhack007]

I remember that some users found a "magic trick" that sometimes helps when analog mics refuse to work.
It involves installing SR13.2 via usb from here https://wled-install.github.io/ ( only usb from that site and no OTA or other method). @dosipod maybe you have some more ideas?

[Labersack99]

I tried installing via the WEB-GUI https://wled-install.github.io/ .
It's the same as installing via OTA, WLED-SR is working, but no SoundReactive effects.

[wgtp]

I too face the same problem. The highest version that I can run without any issues is 13.0 b4. Anything above seems to be inconsistent. It might work initially after firmware upgrade but after few days microphone functionality stops. This was already reported here:
#162

[softhack007]

hmm 🤔 there must be something special about your ESP32...Analog Mic definitely works for many people who are using 13.2 - including myself. One difference is that SR-WLED 13.0-b4 did not use i2S drivers for analog inputs, but was based on analogRead().

💡 two things I can imagine

A) do you have analog buttons (i.e. potentiometer) configured in WLED? Analog audio input does not work when other analog devices are in use. That's due to a bug in the framework from espressif - a conflict between I2S driver and analogread driver. If you have, please disable all analog inputs, restart your esp32 and try again.

B) Could it be that you have an ESP32 "revision 0"? Revision 0 has many known hardware-bugs, which could also explain the problem you see.

You can easily check your ESP32 hardware revision with a simple Arduino sketch:

#include <Arduino.h>
#include <Esp.h>

void setup() {
  Serial.begin(115200); delay(2000); Serial.println();

  Serial.print("ESP chip model   : "); Serial.print(ESP.getChipModel());
  Serial.print(", Revision ");         Serial.println(ESP.getChipRevision());
  Serial.print("CPU Speed (Mhz)  : "); Serial.println(ESP.getCpuFreqMHz());

  Serial.print("FLASH size (kb)  : "); Serial.println(ESP.getFlashChipSize() / 1024);
  Serial.print("FLASH Speed (Mhz): "); Serial.print(ESP.getFlashChipSpeed() / 1000000);
  Serial.print(", Mode ");             Serial.println(ESP.getFlashChipMode());

  Serial.println(); Serial.flush();
}
void loop() {
    delay(2000);
}

To run this, you only need Arduino IDE and the "ESP32 Arduino" board package. Compile & upload, then open Serial Monitor and press "RST" on ESP32.

On my ESP32, I get this output:

ESP chip model   : ESP32-D0WDQ6, Revision 3
CPU Speed (Mhz)  : 240
FLASH size (kb)  : 4096
FLASH Speed (Mhz): 80, Mode 2

Please post the output you get.

[wgtp]

The buttons are disabled. I think this was suggested in #162

Here is my output. Looks to be revision 1.

rst:0x10 (RTCWDT_RTC_RESET),boot:0x13 (SPI_FAST_FLASH_BOOT)
configsip: 0, SPIWP:0xee
clk_drv:0x00,q_drv:0x00,d_drv:0x00,cs0_drv:0x00,hd_drv:0x00,wp_drv:0x00
mode:DIO, clock div:1
load:0x3fff0030,len:1184
load:0x40078000,len:13160
load:0x40080400,len:3036
entry 0x400805e4

ESP chip model : ESP32-D0WDQ6, Revision 1
CPU Speed (Mhz) : 240
FLASH size (kb) : 4096
FLASH Speed (Mhz): 80, Mode 2

[softhack007]

Chip info looks good.

Sorry don't have additional ideas as to what else can cause your problem. I've cross-check the source code, and everything that's related to analog input looks good.

There are some generic clues in our wki that helped others make theit analog microphones work better. Maybe you find something here: https://github.com/atuline/WLED/wiki/First-Time-Setup#noise-and-spikes