diff --git a/.gitmodules b/.gitmodules
index 8ca8b6d8..c459ab2a 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -998,3 +998,6 @@
 [submodule "libraries/drivers/adg72x"]
 	path = libraries/drivers/adg72x
 	url = https://github.com/adafruit/Adafruit_CircuitPython_ADG72x.git
+[submodule "libraries/drivers/s35710"]
+	path = libraries/drivers/s35710
+	url = https://github.com/adafruit/Adafruit_CircuitPython_S-35710.git
diff --git a/docs/drivers.rst b/docs/drivers.rst
index 9c6bb455..efac0c2f 100644
--- a/docs/drivers.rst
+++ b/docs/drivers.rst
@@ -552,6 +552,7 @@ Miscellaneous
     OV7670 Camera <https://docs.circuitpython.org/projects/ov7670/en/latest/>
     Pixelbuf <https://docs.circuitpython.org/projects/pixelbuf/en/latest/>
     RockBlock Iridium Satellite Modem <https://docs.circuitpython.org/projects/rockblock/en/latest/>
+    S-35710 Low-Power Wake Up Timer <https://docs.circuitpython.org/projects/s35710/en/latest/>
     Si4713 Stereo FM Transmitter <https://docs.circuitpython.org/projects/si4713/en/latest/>
     Si5351 Clock Generator <https://docs.circuitpython.org/projects/si5351/en/latest/>
     STMPE610 Resistive Touchscreen <https://docs.circuitpython.org/projects/stmpe610/en/latest/>
diff --git a/libraries/drivers/s35710 b/libraries/drivers/s35710
new file mode 160000
index 00000000..acdad93d
--- /dev/null
+++ b/libraries/drivers/s35710
@@ -0,0 +1 @@
+Subproject commit acdad93db7be9846fcd694c4a6e47ff5aa0e5fc5