Merge remote-tracking branch 'upstream/main'

Author: softhack007

docs/advanced/audio-reactive.md

@@ -13,6 +13,15 @@ Audio Reactive WLED is a possibility of using WLED controllers in such a way tha
 
 The audio must be "feed" into the microcontroller. There are basically four options: using microphones, line-in adapters, another WLED instance or directly from a PC.
 
+### ESP / microcrontrollers supported
+Audio Reactive (AR) works on all ESP controllers but with some limitations:
+
+- ESP8266 does not support any microphone input, AR streaming mode only
+- ESP32 C3 is too slow and does not include AR by default, enabling AR requires a custom build
+- ESP32 S2, S3 (and C3) support digital microphones only
+- Classic ESP32 supports digital and analog microphones
+- PDM microphones (like SPM1423, see below) are supported on Classic ESP32 and ESP32-S3, but not supported on ESP32-S2 and ESP32-C3.
+
 ### Microphones supported
 
 Three microphone types are supported:
@@ -37,7 +46,7 @@ There are also some commercial controllers with integrated digital microphone or
 
 #### 3. PDM microphones
 
-An example is SPM1423. In principle, these are also digital microphones with an integrated Sigma-Delta ADC. They are slightly cheaper than I2S microphones, require one PIN less and the quality is quite good.
+An example is SPM1423. In principle, these are also digital microphones with an integrated Sigma-Delta ADC. They are slightly cheaper than I2S microphones, require one PIN less and the quality is quite good. PDM microphones are only supported on Classic ESP32 and on ESP32-S3.
 
 ### Line-In options