Add submission # 5346

#5346

Author: ArduinoBot

registry.txt

@@ -7573,3 +7573,4 @@ https://github.com/UltiBlox/DisplayValueCommon.git|Contributed|UltiBlox DisplayV
 https://github.com/UltiBlox/UltiBloxExamples.git|Contributed|UltiBloxExamples
 https://github.com/Seeed-Studio/Seeed_Arduino_SGP30.git|Contributed|Seeed Arduino SGP30
 https://github.com/mirs240x/micro_ros_arduino_mirs240x.git|Contributed|micro_ros_arduino
+https://github.com/dejwk/roo_time_ds3231.git|Contributed|roo_time_ds3231