Replace custom ES7210 register-level driver with the verbatim LilyGO
T-Deck Plus ES7210 library. The custom driver was writing MODE_CONFIG
and clock doubler registers (master mode path) which broke the ES7210's
clock chain, causing all-zero PCM output. The LilyGO library in slave
mode leaves those registers at power-on defaults, which is correct since
the ESP32 I2S master provides MCLK/BCLK/LRCK.
Also includes LXST voice call protocol improvements:
- LXST IN destination for receiving calls
- Announce handler for tracking voice-capable peers
- Path request before outgoing calls
- Throttled SPIFFS saves in microReticulum (dirty flag)
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
- Add ES7210 I2C address and I2S mic capture pin definitions
- Add ring/hangup tone helpers to Tone library
- Add lxst_audio library scaffold
- Add Codec2 dependency to platformio.ini
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
