diff --git a/repositories.txt b/repositories.txt
index 8e8a9958..c7f16208 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,3 +1,4 @@
+https://github.com/tedtoal/Button_TT
 https://github.com/geekblemaker/Geekble_note2freq
 https://github.com/Reefwing-Software/Reefwing-PWM
 https://github.com/misaproyectil/digitalIO