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ZephCore T096andClaude Sonnet 5
6b9d205b00
server_main_common.cpp and main_observer.cpp both configured led0 as a plain GPIO output at boot, unconditionally. On ESP32 that calls esp_rom_gpio_matrix_out() under the hood, which routes the pin's output to the GPIO signal and takes it away from whatever peripheral had it before, including the LEDC channel a heartbeat-pwm-led or lora-tx-pwm-led alias had already claimed during the PWM driver's own init. The PWM write then succeeds (no error, no warning) but never reaches the pin: confirmed on V4.3 hardware, where the same pin lights up fine over plain GPIO, and over PWM in a different (non-Zephyr) firmware, but stays dark over Zephyr's PWM once this GPIO configure has run. Companion builds never hit this (they don't use server_main_common.cpp) and nRF52 isn't affected (no shared GPIO matrix), which is why T096 tested fine while V4.3 didn't. Fix is alias-based, not a board list, so any future board with either PWM alias is covered without extra wiring. Also: CLI_HAS_RADIO_LED only checked the plain lora-tx-led alias, so "set leds.radio" replied "(no radio LED on this board)" on boards whose radio LED exists only via lora-tx-pwm-led (V4.3). Check both. Documents the two PWM aliases in the board porting guide, and leds.brightness plus the corrected LED topology counts in docs/CLI_commands.md. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>