diff --git a/registry.txt b/registry.txt
index 69bc9fad..491eeb72 100644
--- a/registry.txt
+++ b/registry.txt
@@ -2152,3 +2152,4 @@ https://github.com/adafruit/Adafruit_ADT7410.git|Contributed|Adafruit ADT7410 Li
 https://github.com/dwrobel/TrivialKalmanFilter.git|Contributed|TrivialKalmanFilter
 https://github.com/dgduncan/Arduino-MCP4131.git|Contributed|MCP4131 library
 https://github.com/BeelanMX/arduino-LoRaWAN.git|Contributed|Arduino LoRaWAN by Beelan
+https://github.com/sauttefk/RS485HwSerial.git|Contributed|RS485HwSerial