Add M5Stack CoreS3 SE board definition#10794
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tannewt merged 2 commits intoadafruit:mainfrom Feb 3, 2026
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The CoreS3 SE is a variant of the CoreS3 with the camera, IMU, magnetometer, proximity sensor, and audio codec removed, paired with the M5GO Battery Bottom3 which adds 10 NeoPixels (GPIO5) and an IR transmitter (GPIO7). Based on the CoreS3 board definition with the following changes: - Board name set to "M5Stack CoreS3 SE" - NEOPIXEL pin defined (GPIO5) for M5GO Bottom3 LEDs - Camera pin definitions and data tuple removed from pins.c - NEOPIXEL and IR named pin aliases added to pins.c - ESPCAMERA support disabled in mpconfigboard.mk - Camera-related AXP2101 power rails (ALDO2/ALDO3) disabled in board.c - Camera config removed from sdkconfig - SD card CS (GPIO4) driven high before display init to mitigate shared SPI bus contention (see adafruit#10536) Note: SD card does not work on any Core S3 variant in CircuitPython due to GPIO35 being shared between SPI MISO and display DC pin (upstream issues adafruit#10536, adafruit#6290). Tested on hardware: display, I2C (AXP2101, AW9523B, FT6336, BM8563), NeoPixels, IR pin, I2S speaker pins, Port B/C GPIOs all verified. Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
tannewt
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Feb 3, 2026
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Please get a proper USB PID. Everything else looks ok.
PID allocated via espressif/usb-pids#292 Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
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Summary
m5stack_cores3board with modifications for the SE hardware differencesChanges from CoreS3
mpconfigboard.hmpconfigboard.mkboard.cpins.csdkconfigHardware Tested
Note on SD Card
The SD card slot shares the SPI bus with the display. GPIO35 is used as both SPI MISO and the display DC (Data/Command) pin. This causes a hard fault when
sdcardiois used from boot.py/code.py, and returns "no SD card" from the REPL. This is an existing upstream issue affecting all Core S3 variants, not specific to this board definition.Test plan
cd ports/espressif && make BOARD=m5stack_cores3_seboard.NEOPIXELandboard.IRpins present, noCAMERA_*pins🤖 Generated with Claude Code