diff --git a/registry.txt b/registry.txt
index 96498d88..a24c317b 100644
--- a/registry.txt
+++ b/registry.txt
@@ -2230,3 +2230,4 @@ https://github.com/iq-motion-control/iq-module-communication-arduino.git|Contrib
 https://github.com/gmarty2000/arduino-JOYSTICK.git|Contributed|Joystick
 https://github.com/gmarty2000/arduino-ULTRASONIC_SENSOR.git|Contributed|UltrasonicSensor
 https://github.com/mobizt/Firebase-ESP32.git|Contributed|Firebase ESP32 Client
+https://github.com/skaldek/STools.git|Contributed|STools