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Circuit review please

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Vini77

New Member
Hi guys, this is my first post here. I expect to be just the beginning. I don't have a background in electronics but completely apaixonado right now. Also, this is my first 'project' and I am here to learn. Sorry in advance by the completely dumb questions. Lets go.
First, I am looking to reproduce this project here: https://circuitdigest.com/microcontroller-projects/arduino-automatic-plant-watering-system
Its a system to automate irrigation. The schema is here:
https://circuitdigest.com/sites/def...c-plant-irrigation-system-circuit-Diagram.png
I have assembled the prototype exactly as the image attached. Before to send the code and plug in the power supply, I have some important questions:

1) As I am very new with circuits and wiring, I would like some help to check if my prototype match the schematics in the original project.
2) In the original schema, the owner did not use a relay module, and in my case, I decided to wire the Signal wire directly into D11. It's ok?
3) In the original schema, the owner used diy soil moisture sensor with just VCC and Ground. In my case, using a ready made sensor there is the Signal output which I have any idea where to wire.
4) Are there something else I am missing? Specially regarding the power supply? I do not want to burn everything again!

I think it is just it for a while!

I would appreciate very much your help and attention. Thanks!
 

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ericgibbs

Well-Known Member
Most Helpful Member
hi Vini,
We need the names of modules you are using, ideally a link or datasheet.
I would recommend that you do not power up the circuit until we have seen the datasheet for the soil sensor, relay modules.
E
 

AnalogKid

Well-Known Member
Most Helpful Member
Why are there six analog inputs going to an LDC screen?
What does the RF module do?

ak
 

ericgibbs

Well-Known Member
Most Helpful Member
clip from Arduino Sketch:
These are the PortD pins.
// initialize the library with the numbers of the interface pins
LiquidCrystal lcd(7, 6, 5, 4, 3, 2);

Check that you have the correct library to suit using PortA for the LCD
 

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cowboybob

Well-Known Member
Most Helpful Member
Thanks, eric. Didn't realize those ports were so versatile.
 

ericgibbs

Well-Known Member
Most Helpful Member
Thanks, eric. Didn't realize those ports were so versatile.
hi Bob,
Started playing with the Arduino a few weeks ago, it is very versatile and good price and easy to program, free IDE
Have made myself a few big boys toys, good fun.;)

Eric
 

cowboybob

Well-Known Member
Most Helpful Member
I've used, for various projects, the Uno, Micro and Nano units. And you're right, it is good fun.

But, sadly, in my usual sort of "surface" understanding of some things, it never occurred to me that an "analog" pin could be anything but, well, an "analog" pin :arghh:. Old school thinkin' ...
 
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