diff --git a/LICENSE b/LICENSE
new file mode 100644
index 0000000..b2c522f
--- /dev/null
+++ b/LICENSE
@@ -0,0 +1,5 @@
+This work is licensed under the terms of the Creative Commons
+Attribution-NonCommercial-NoDerivatives 4.0 International License.
+To view or obtain a copy of this license, visit
+https://creativecommons.org/licenses/by-nc-nd/4.0/ or send a letter to
+Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
diff --git a/README b/README
index be6d98c..6b56024 100644
--- a/README
+++ b/README
@@ -15,6 +15,15 @@ FEATURES
   -  High-side push-buttons for GPIO signals
 
 
+LICENSE
+
+This work is licensed under the terms of the Creative Commons
+Attribution-NonCommercial-NoDerivatives 4.0 International License.
+To view or obtain a copy of this license, visit
+https://creativecommons.org/licenses/by-nc-nd/4.0/ or send a letter to
+Creative Commons, PO Box 1866, Mountain View, CA 94042, USA.
+
+
 DEPENDENCIES
 
   -  KiCad version 5.1.9 for macOS.  Results with previous or subsequent