blue
2a34ed5abe
The Wi-Fi/web/ESP-NOW sync approach was unviable: Wi-Fi + Bluetooth-A2DP + the delay buffer exhausted RAM on the classic ESP32 (~20 KB free), and the Bluetooth stack was so starved the source boards couldn't even connect to a speaker. Confirmed on hardware: with Wi-Fi up the JBL would not connect; with Wi-Fi removed it connects instantly (~65 KB free). - board_source.cpp: remove Wi-Fi/ESP-NOW. Keep the I2S-reader-task + ring delay line (now 200 ms; plenty of RAM without Wi-Fi). Adjust delay live by ear via two capacitive-touch pads — "+" on GPIO4 (T0), "-" on GPIO27 (T7); tap = 5 ms step, hold = ramp. Persisted to flash (debounced). - board_sink.cpp: reverted to the simple A2DP sink + I2S master (no Wi-Fi). - platformio.ini: drop SPEAKER_ID. Remove relay_config.h. All three boards connect reliably with healthy heap. Touch pins read ~120 untouched; threshold 40. Co-Authored-By: Claude Opus 4.8 (1M context) <noreply@anthropic.com>
40 lines
1.5 KiB
INI
40 lines
1.5 KiB
INI
; BikeAudio — 3-board relay (iPhone -> Board A sink -> I2S -> Boards B/C sources -> JBL + Cardo)
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;
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; One ESP32 cannot be an A2DP sink and source at once, and an A2DP source can
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; reach only one speaker — so the work is split across three boards that share
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; an I2S bus. See README.md for wiring and the flash order.
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;
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; Build all: pio run
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; Build one board: pio run -e sink | -e source_jbl | -e source_cardo
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;
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; Common specs preserved from the original sketch: ESP32 Arduino core 2.0.x via
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; espressif32 ~6.6.0, esp32dev, huge_app partition (BT stack), 115200 monitor.
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[platformio]
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default_envs = sink, source_jbl, source_cardo
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[env]
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platform = espressif32 @ ~6.6.0
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board = esp32dev
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framework = arduino
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board_build.partitions = huge_app.csv
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monitor_speed = 115200
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; pschatzmann libs pinned to exact commits (ESP32-A2DP 1.8.11, audio-tools 1.2.4)
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lib_deps =
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https://github.com/pschatzmann/ESP32-A2DP#42601717cd70d5300c9b519f3c2bf1d64d77ea2b
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https://github.com/pschatzmann/arduino-audio-tools#64b64dcb9bde18a0a17766eeb6529c3a53d920a8
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; --- Board A: A2DP sink (iPhone) -> I2S master --------------------------------
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[env:sink]
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build_src_filter = +<board_sink.cpp>
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; --- Board B: I2S slave -> A2DP source -> JBL Charge 5 ------------------------
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[env:source_jbl]
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build_src_filter = +<board_source.cpp>
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build_flags = '-DTARGET_SPEAKER="JBL Charge 5"'
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; --- Board C: I2S slave -> A2DP source -> Cardo (Tangerine EDGE) --------------
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[env:source_cardo]
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build_src_filter = +<board_source.cpp>
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build_flags = '-DTARGET_SPEAKER="Tangerine EDGE"'
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