Add submission # 1673

#1673

Author: ArduinoBot

registry.txt

@@ -5183,3 +5183,4 @@ https://github.com/gism/ESP32_AD7190.git|Contributed|AD7190forESP32
 https://github.com/cygig/MCUVoltage.git|Contributed|MCUVoltage
 https://github.com/mcci-catena/mcci_ltr_329als.git|Contributed|MCCI LTR-329ALS
 https://github.com/RobTillaart/AD5245.git|Contributed|AD5245
+https://github.com/affanhanifathtarech/DS3231_RTC.git|Contributed|DS3231_RTC