Fix nugget s3 lora variant issues#7070
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Without setting `ARDUINO_USB_CDC_ON_BOOT=1` the serial interface on the nugget s3 lora board does not work.
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jeek
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Jun 30, 2026
* Fix serial communication for nugget s3 lora Without setting `ARDUINO_USB_CDC_ON_BOOT=1` the serial interface on the nugget s3 lora board does not work. * Fix nugget s3 lora variant definitions
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I had some issues to build a new firmware for the Bluetooth Nugget + LoRa Node, which was part of a workshop where a friend of mine was attending. Here is a blog post about it. There are some builds which work (https://github.com/RetiaLLC/38c3-Meshtastic) and luckily there where also some upstream (here) changes to support this board. But the OLED did not work and the USB Serial interface did not work either. Only Bluetooth and RF.
Setting
ARDUINO_USB_CDC_ON_BOOT=1did the trick to get serial working.To get the OLED working the I2C pin definitions must be corrected. In addition to the pin definition changes for I2C I added:
USE_SSD1306so there is no strange line breakDISPLAY_FLIP_SCREENto correct the orientationBUTTON_PINto44, which is the Button AI do not know if there are other hardware revisions which break with these changes. If anybody knows I could add a variant.
I could not find any issues related to this board.
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