IndoorGeek | Automatic Switch | Arduino + DS3231 @IndoorGeek | Uploaded June 2018 | Updated October 2024, 4 hours ago.
I have a planted aquarium which means that the light should be turned ON and OFF at the right time during the day. The problem arrives whenever I am away on a vacation. This encouraged me to do this project.
Though I have used this switch for the fish tank, but it can be used for any application you may think of. For example, Garden watering system.

Project files can be found here: goo.gl/FZ8zo1

Introduction and setting up DS3231: goo.gl/oZXpor