Date and time based watering system using an Arduino and a RTC module

In this video I show you how to make an automated watering system based on a real time clock (RTC) module.
You can expand this project to control anything based on date/time, and you can add more switches, relays, etc.
For example, you can turn on and off your heater, lights, air purifier at a certain time of the day with this circuit.

[sunilkhare]

An excellent video and useful too. Many people upload the video but they hide key things like software. But you not only showed it in your presentation; you explained it nicely. Many many thanks for a nice video. The time spent on it was fruitful.

[joshuaoduroadu]

Thanks very much for such an in-depth explanation & guide to using an RTC to control the watering system using an Arduino. I'm currently working on a similar project and had been looking for a way to do exactly what you have done. You are a life saver!

[Randomdg]

Thank you so much for making such an in-depth guide and tutorial! I'm a student designer and unfortunately I don't really know my way around electronics, so I'm really thankful that there are kind people like you who make stuff like this. I love the concept of arduino and stuff but I guess I just don't have much of an engineering mindset to learn more than the basics lol. I'm currently working through configuring this to work for a planter I'm making as a school project.

Just saw a lot of comments only asking for help, so I just wanted to leave one as thanks :)

[TalesTelles]

Hi @Curious Scientist,
Thank you so much for doing this video, the explanation was sensational! Congratulations.
Sincerely, Tales.

[ravigrai]

Looks a very good implementation. Better to add the circuit diagram for much more clear understanding

[yakuzabe]

Hi, thanks for your explanation and code. I’m a beginner and this info is real educational. Only one problem with the screen. Every second on clock makes screen blink. Strange no? Can you imagine what going on?

[darwinpalon]

Can you use solenoid valve instead of pump? Or other valves that can be automated its open and close?

[harishnair]

Great video, had a lot of useful information. Thank you.
I'm having an issue with the LCD display, for some reason I don't see any information on the screen only the backlight is ON. What could have caused it? Any guess or suggestions to look into the code.
I understand if you are done answering such stupid questions. Once again thank you for the video.

[joaolacueva]

Hi! Thank you, but I do have a question, on the 12v power supply.. how many amps? Thank you

[seshafarmspalmarosa]

Very clear instructions, , if i want to run the pump for every 10 min from 6 to 6, every day, what will be change in the code of interval pl let me know thanks ....

[رجلالسلام-خو]

So the date and time of RTC set automatically from computer date and time?

[sijusivanadan]

Hi, well explained video. Only one doubt, is it possible to put multiple cycle for one day?. And if it could be controlled using a selection switch to alter timing as desired, it would have be very helpful.

[diegofroesesouza]

Hi, I am creating a code for a irrigation system based on you code, thank u. I see you declared the switch variable "shitchstate" as an int, yet when you use the digital read function it returns high, how come it did'nt crash?

[Rdw]

Can you post the wiring diagram, please! Thank you!

[parshvtathed]

Excellent project
But can watering system will work
If we want, watering system to run
after two, three months

[aaronsparrow]

hi great tutorial! canthis also be edited easily for day of the week?

[princessninajanecometa]

Very useful video! Thank you. I'm working on a program that will work on our product for our research defense, we didn't hire a programmer since its very expensive for us students to pay them. And currently, I'm having troubles with my program, is it possible that instead of turning the watering system off and on, but I will apply it to an LED that will fade at a specific time? In simple words, scheduling the LED to fade in and out at a specific time using RTC Module. I'm not very much of an expert when it comes to coding, can you recommend me examples that I can study with? I hope you can help me with this. And thank you for this video!

[TalesTelles]

Hi @Curious Scientist,
Do you have any idea if it is possible to add a temperature sensor and if the temperature is below 50 fahrenheit, for example, it blocks the water outlet?
Sincerely, Tales.

[yudhobaskoro]

can i just use the relay and the RTC ?, cos i really dont wanna mess with the LCD, cos it'll be outside exposed to the elements

[zahranfarzanah]

Hi! great video, can i ask something? is it possible for me to replace the lcd screen with oled one?