1 files changed, 2 insertions, 0 deletions

diff --git a/README.md b/README.md
index d65a7e4..d397a1f 100644
--- a/README.md
+++ b/README.md
@@ -2,3 +2,5 @@
 Big 3D printed RGB LED seven segment display clock
 
 Read more here: [blog.node5.net - Seven segment display](https://blog.node5.net/Seven%20segment%20display/)
+
+[Main code file](../tree/src/main.cpp)