diff --git a/repositories.txt b/repositories.txt
index 50d9dda4..47e74e27 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -1,6 +1,7 @@
 https://github.com/tedtoal/Button_TT
 https://github.com/geekblemaker/Geekble_note2freq
 https://github.com/Reefwing-Software/Reefwing-PWM
+https://github.com/hen1227/bluetooth-serial
 https://github.com/misaproyectil/digitalIO
 https://github.com/misaproyectil/GD3300
 https://github.com/misaproyectil/Sprite_Serial_Control