From 974c7d4a8618e12a1e096e3d4a1754ed0d1ba83d Mon Sep 17 00:00:00 2001
From: CrazyRedMachine <36906596+CrazyRedMachine@users.noreply.github.com>
Date: Tue, 16 Jun 2020 21:05:52 +0200
Subject: [PATCH] Update README.md

---
 README.md | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/README.md b/README.md
index b044108..be04485 100644
--- a/README.md
+++ b/README.md
@@ -18,6 +18,8 @@ They are usually based on mon's https://github.com/mon/Arduino-HID-Lighting whic
 
 As I needed more gpio than usual, this project was my first time working with Arduino Due and unfortunately the USB HID definitions are not compatible with Leonardo code so a lot of changes had to be made.
 
+The keypad code uses the Keypad library by Mark Stanley and Alexander Brevig.
+
 # Supported devices and requirements
 
 This code has been tested on Arduino Due. It should still compile for Leonardo provided you redefine the pinout.