diff --git a/repositories.txt b/repositories.txt
index 4b1e00c5..6b82571c 100644
--- a/repositories.txt
+++ b/repositories.txt
@@ -6084,3 +6084,4 @@ https://github.com/soryone1/fog
 https://github.com/todd-herbert/unoHID
 https://github.com/adafruit/Adafruit_TSC2046
 https://github.com/FacundoPumilla/MQ137
+https://github.com/JSC-electronics/acdu-support-library