diff --git a/README.md b/README.md
index 37eec3c..db31fcc 100644
--- a/README.md
+++ b/README.md
@@ -14,7 +14,9 @@
 <details>
 <summary>1. Components</summary>
 '1' Arduino Leonardo<br>
-'3' Button
+'3' Button<br>
+'1' 330 ohm resistor<br>
+'2' 220 ohm resistor
 </details>