Connecting a lot of boards

[royh111]

Hi,

Im fairly new to the rpi. For automation I want to connect a few water sensors, a water- temperature sensor, and 13 relays to it. It is quite a hard probably, but I want to make it work. So my question is, is it possible to connect al that to 1 pi? And of so, how Do i Do it? I've found a few relay board for rpi/arduino so I can probably use them.

Thanks in advance!
Roy

[FLYFISH TECHNOLOGIES]

Hi,

So my question is, is it possible to connect al that to 1 pi?

Yes.

And of so, how Do i Do it? I've found a few relay board for rpi/arduino so I can probably use them.

One option, for sure. Just verify that voltage levels of the board(s) match (RasPi levels are 3.3V).


Best wishes, Ivan Zilic.

[Richard-TX]

You could connect 10 times that amount of stuff.

[royh111]

Thx!
But how, there's Just 17 gpoi ports.
Will it work if I connect the sensors and a few relays to the gpoi ports, and the rest of the relays with the USB cable, to a USB relay?

Can that work?

[BMS Doug]

the relays could be connected via I2C allowing you to daisy chain several sets of boards to one pair of GPIOs.

[FLYFISH TECHNOLOGIES]

Hi,

Will it work if I connect the sensors and a few relays to the gpoi ports, and the rest of the relays with the USB cable, to a USB relay?
Can that work?

Yes, this setup can also work.
What you'll soon realize is that one part of the job is to connected things together, remaining is to find/write software to make this working...


Best wishes, Ivan Zilic.