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fix(m5stack_unit_c6l): add USB CDC flags to repeater and room_server envs - #3157

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fix(m5stack_unit_c6l): add USB CDC flags to repeater and room_server envs#3157
jirogit wants to merge 1 commit into
meshcore-dev:devfrom
jirogit:fix/c6l-repeater-room-usb-cdc-clean

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@jirogit

@jirogit jirogit commented Aug 9, 2026

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Same root cause as #3099 (kiss_modem): without ARDUINO_USB_CDC_ON_BOOT=1 / ARDUINO_USB_MODE=1, Serial routes to UART0, which has no physical connector on this board — so the USB admin console was unreachable on the repeater and room_server envs.

Tested on real hardware: USB admin console now responds on both envs, confirmed frequency/region configuration via serial.

…envs

Same issue as PR meshcore-dev#3099 (kiss_modem): without ARDUINO_USB_CDC_ON_BOOT=1
and ARDUINO_USB_MODE=1, Serial routes to UART0, which has no physical
connector on this board. USB admin console was unreachable on these
envs as a result.

Tested on real hardware: USB admin console now responds on both
repeater and room_server envs, confirmed configurations via serial.
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