diff --git a/.gitmodules b/.gitmodules
index cb89126..8d2234f 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "cores/arduino/kendryte-standalone-sdk"]
 	path = cores/arduino/kendryte-standalone-sdk
 	url = https://github.com/sipeed/kendryte-standalone-sdk
+[submodule "libraries/Adafruit-GFX-Library"]
+	path = libraries/Adafruit-GFX-Library
+	url = https://github.com/adafruit/Adafruit-GFX-Library
diff --git a/libraries/Adafruit-GFX-Library b/libraries/Adafruit-GFX-Library
new file mode 160000
index 0000000..253e30d
--- /dev/null
+++ b/libraries/Adafruit-GFX-Library
@@ -0,0 +1 @@
+Subproject commit 253e30d6ebd14c9250ddcc950b42eb564f5d4427