diff --git a/.gitmodules b/.gitmodules
index f922aae1db..3603cea696 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -150,3 +150,6 @@
 [submodule "frozen/Adafruit_CircuitPython_RFM9x"]
 	path = frozen/Adafruit_CircuitPython_RFM9x
 	url = https://github.com/adafruit/Adafruit_CircuitPython_RFM9x.git
+[submodule "frozen/Adafruit_CircuitPython_RFM69"]
+	path = frozen/Adafruit_CircuitPython_RFM69
+	url = https://github.com/adafruit/Adafruit_CircuitPython_RFM69.git
diff --git a/frozen/Adafruit_CircuitPython_RFM69 b/frozen/Adafruit_CircuitPython_RFM69
new file mode 160000
index 0000000000..c0b9bdf229
--- /dev/null
+++ b/frozen/Adafruit_CircuitPython_RFM69
@@ -0,0 +1 @@
+Subproject commit c0b9bdf22997552396abb514a6304d33460c2912
diff --git a/ports/atmel-samd/boards/feather_m0_rfm69/mpconfigboard.mk b/ports/atmel-samd/boards/feather_m0_rfm69/mpconfigboard.mk
index 7556b9517f..b589ae7665 100644
--- a/ports/atmel-samd/boards/feather_m0_rfm69/mpconfigboard.mk
+++ b/ports/atmel-samd/boards/feather_m0_rfm69/mpconfigboard.mk
@@ -10,4 +10,21 @@ INTERNAL_FLASH_FILESYSTEM = 1
 LONGINT_IMPL = NONE
 CIRCUITPY_FULL_BUILD = 0
 
+# A number of modules are removed for RFM69 to make room for frozen libraries.
+# Many I/O functions are not available.
+CIRCUITPY_ANALOGIO = 0
+CIRCUITPY_PULSEIO = 0
+CIRCUITPY_NEOPIXEL_WRITE = 1
+CIRCUITPY_ROTARYIO = 0
+CIRCUITPY_RTC = 0
+CIRCUITPY_SAMD = 0
+CIRCUITPY_USB_MIDI = 0
+CIRCUITPY_USB_HID = 0
+CIRCUITPY_TOUCHIO = 0
+CFLAGS_INLINE_LIMIT = 35
+# Make more room.
 SUPEROPT_GC = 0
+
+# Include these Python libraries in firmware.
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_BusDevice
+FROZEN_MPY_DIRS += $(TOP)/frozen/Adafruit_CircuitPython_RFM69