Fix INMP441 silent meter: stereo I2S slots and DC removal.

ESP32 left/right naming often mismatches L/R=GND, and DC bias made dB look stuck.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
2026-10-27 21:00:29 +08:00
parent 59b85fb7dc
commit 8b2a2cbc0b
4 changed files with 69 additions and 17 deletions

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@@ -83,4 +83,5 @@ README.md
| 日期 | 说明 |
|------|------|
| 2026-10-27 | 修复无声贝变化:I2S 改立体声读槽(ESP32 L/R 与麦脚常反相)+ 去直流后再算 RMS |
| 2026-10-27 | 初版:INMP441 I2S 声贝仪表盘(WS22/SCK27/SD35),LVGL 圆弧 + peak/min/max + 趋势图 |