diff --git a/led-driver b/led-driver
new file mode 160000
index 0000000..4c7646b
--- /dev/null
+++ b/led-driver
@@ -0,0 +1 @@
+Subproject commit 4c7646b2fe8f12177cc07eea2a2595d1629833b9
diff --git a/led-tool b/led-tool
new file mode 160000
index 0000000..3844aa9
--- /dev/null
+++ b/led-tool
@@ -0,0 +1 @@
+Subproject commit 3844aa9d6a0b9a034c862265a2e87c3acd8db90b