Add submission # 4221

#4221

Author: ArduinoBot

registry.txt

@@ -6879,3 +6879,4 @@ https://github.com/okalachev/flixperiph.git|Contributed|FlixPeriph
 https://github.com/crozone-technology/crozone-veml6040.git|Contributed|CROZONE-VEML6040
 https://github.com/paulino/ha-mqtt-entities.git|Contributed|HaMqttEntities
 https://github.com/fanfanlatulipe26/FS_MX1508.git|Contributed|FS_MX1508
+https://github.com/dattasaurabh82/DFRobot_GDL.git|Contributed|DFRobot_GDL