Customer:
I’m planning to set up a greenhouse of 24m×6m and want to automate the watering system. I found your water level sensors and was impressed. I’d like to build a system using your components as much as possible.
How many water level sensors can I connect to a Croduino Nova 2? Can I use it to control relays for running a pump, opening valves, and similar tasks?
Also, how many soil moisture sensors can I connect?
Original message (Croatian)
planiram postaviti plastenik površine 24m*6m te razmišljam kako automatiziati navodnjavanje. Tražeći senoze razine vode koji mi trebaju naišao sam na vašu stranicu i, malo je reći, oduševio se.
Od prvotnog senzora došao sam do toga da bih volio složiti sustav od vaših komponentni kolko je to god moguće.
Zanima me kolko takvih senzora mogu spojiti npr na Croduino Nova 2 te mogu li pomoću njega upravljati sklopnicima npr za pokretanje pumpe, otvaranje ventila i sl.
Također koliko senzora za vlažnost tla mogu spojiti?
Hvala i lp
[name removed]
Originally submitted via email support on 3 December 2021. Migrated to the forum for community visibility.
Soldered Support:
Water level sensors work as simple switches, which means each sensor needs one microcontroller pin to read its state. Soil moisture sensors can be used in analog or digital mode, and which pin type you need depends on how you use them (digital or analog). Since Croduino Nova 2 has only one analog pin, you may need to use an ADS1115 ADC breakout, which lets you connect up to 4 additional analog sensors. You can certainly connect relays and switches, but for switches I’d recommend controlling them through a relay module, which is designed for easy connection and use.
If you’re just starting with electronics, I recommend reading our tutorials for the sensors and modules you’re interested in. They’ll help you understand how the sensors and modules work and how to use them, which will make wiring and programming your entire system easier.
Original message (Croatian)
Hvala na podršci za naš rad. Senzori razine vode rade kao obični prekidači što znači da će za svaki senzor trebati po jedan pin mikrokontrolera kako bi se moglo pročitati stanje pojedinog senzora. Senzori vlažnosti tla se mogu koristiti kao analogni ili digitalni te o načinu korištenja ovisi koji pin vam je potreban (digitalni ili analogni). Kako Croduino Nova2 ima samo jedan analogni pin možda će te morati koristiti ADS1115 ADC breakout s kojim možete spojiti dodatna 4 analogna senzora. Naravno da možete spajati releje i sklopnike, ali za sklopnike bih svakako preporučio paljenje preko relej modula koji je napravljen za jednostavno spajanje i korištenje.
Ako ste tek počeli s elektronikom preporučio bih vam da pročitate naše KKM tutorijale za senzore i module koji vas zanimaju jer će te saznati nešto više o samom radu senzora i modula te njihovom korištenju što će vam svakako olakšati spajanje i programiranje cijelog sustava.