My team and I are actually highschool students with little to no backgrounds about programming and robotics
Our teachers and school expected us to build a project based on tutorials on the internet but need to add our own modifications or rather the function our teacher wants to add
That's why I turn to this forum as we are not sure about our set-up, and thank youuu for all your comments and advice we really appreciate it
Likely not.
You don't tell any specs of your components, but I don't know any arduino board that could be reliably powered with this setup.
Battery has nominal voltage 3.7V, I would expect to get ~2.4V out from LM2596 at max.
what both @TomGeorge and @kmin have expressed here, We need more information and Likely not is true. Photovoltaic panels is a difficult power source to rely upon without calculations and evaluation of the site. To mention an example; that 750 mA spec would be under perfect conditions, always sunny, tracking the sun etc. Which is far from reality.
Regarding information needed, you haven't said anything about runtime for the pumps or how much A they require. The pumps (despite being the machinery to keep boats from sinking) is what likely will sink this project at current state. Sink and current in same sentence, that's a joke right there.
consider the merits of telling us what the module on the bottom left is, and what the module below the solar panel is. in the immortal words - actually, word- of Johnny 5, "INPUT!"
For more details:
Our project is to create a water filtration system with this kind of set-up
*this set-up is not final its more of a draft
And info about us:
My team and I are actually highschool students with little to no backgrounds about programming and robotics
Our teachers and school expected us to build a project based on tutorials on the internet but need to add our own modifications or rather the function our teacher wants to add
That's why I turn to this forum as we are not sure about our set-up, and thank youuu for all your comments and advice we really appreciate it
Please don't edit your original post when you add information, it's making the whole topic very confusing.
So, nothing has changed for the first issue here, you can't do what you are looking for with buck converter. Buck is stepping down voltage, but your arduino needs to have >6.5V on the VIN (or 5V on 5V pin).
Think with your team, how that could be resolved.
PLEASE get out a pen(cil) and paper ad draw a decent schematic.
Can you please post a copy of your circuit, a picture of a hand drawn circuit in jpg, png?
Hand drawn and photographed is perfectly acceptable.
Please include ALL hardware, power supplies, component names and pin labels.
This kind of project has been done dozens or hundreds of times. Use google to search. Using google in a smart way means many searches with different search arguments. sometimes one search word spells the difference between success and failure.
Another way to tackle this is to break the one big project into several smaller projects. For example
Solar charger
Sensors (turbidity and pH)
Pumps
Once each sub-project is working, merge it into the single sketch. There is a tutorial on the forum that shows you how to merge.
