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-rw-r--r--ports/atmel-samd/boards/hallowing_m0_express/mpconfigboard.mk3
1 files changed, 3 insertions, 0 deletions
diff --git a/ports/atmel-samd/boards/hallowing_m0_express/mpconfigboard.mk b/ports/atmel-samd/boards/hallowing_m0_express/mpconfigboard.mk
index e41e2ebd9..222a217b3 100644
--- a/ports/atmel-samd/boards/hallowing_m0_express/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/hallowing_m0_express/mpconfigboard.mk
@@ -16,3 +16,6 @@ CHIP_FAMILY = samd21
FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_BusDevice
FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_LIS3DH
FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_NeoPixel
+
+# To keep the build small
+CIRCUITPY_I2CSLAVE = 0