(2 x ADC) + (2 x Relay) stackable?

Shanan Clark

Hi i would like to make a fully functioning hydroponic system
it states 2x ADC are stackable but is 2xADC + 2 x relay stackable? this is my preference

if not is 1x ADC + 1xRelay stackable ? as i will split, one omega running air/light, the other running water control and ph etc

Would like to achieve
analogue measuring air temperature, water temperature, ph level water (uses 2 x analog) , humidity, water level
relay control fan, 2x lights, water pump, 2 x Peristaltic pumps

possibly something i have missed

most good examples of fully functional hydroponic controllers use arduino mega or similar
i have an omega2+ as well as most expanisons needed ( i will need to buy an ADC )
so was looking to utilize what i have

thanks

György Farkas

@Shanan-Clark Yes. Theoretically you could build a "beautiful" Onion Omega Tower using

an Expansion Dock or a Power Dock or an Arduino Dock 2 (and an Omega2(+) of course)
and two (2) ADC Expansions - with 2 x 4 single ended (0..+5V) or 2 x 2 differential (-5V..+5V) analog inputs in total
I2C addresses 0x48..0x49
and eight (8) Relay Expansions with 8 x 2 relay outputs in total
I2C addresses 0x20..0x27

BTW I can imagine a little bit better (more robust) mechanical structure than that stacked tower since there are only five (5) connections / wires between these Expansions and the Dock - or even a bare Omega2(+) - namely the +5v, +3.3V, GND and the I2C SCL, SDA lines.

Good luck!