newbie - advice on user interface to simple output project

First post!

I would like to create a user interface that opens and closes analog outputs. The purpose is to allow a quick user interface to turning things on and off on an aquarium.

analog outputs would be wired to:

In the past I have made these using simple switches, though something graphical would be more fun!

The aquarium has a controller with web interface, though for quick operations a standalone interface is preferred.

specs:

  • minimum 4.3" screen, prefer 7"
  • two sets of 6 outputs - each would share a single ground reference from the aquarium output box, and when closed will create continuity to the output
  • touch screen interface

I'm new and in the reading phase, all help is appreciated!

touch screen

outputs
do I need to use relays or can I use Triacs? is there an easier way?
Is there a shield available for 12 or more outputs? I haven't found one.

thanks!

Hi and welcome.

a user interface that opens and closes analog outputs

Did you mean to say "digital"?

analog outputs would be wired to

A link to the spec of that device will be far more usefull than a pic.

The aquarium has a controller with web interface

So how will your Arduino based controller interact with the existing controller?

Paul

I suspect that an Arduino may not be suitable for the sort of GUI that you would have on a 4.3" or 7" screen. A RaspberryPI might be more appropriate.

...R