I want to buy an Arduino. I want to control it with MQTT. I would like for it to control 16 relays and have an Ethernet on board.
It would have a voltage regulator allowing me to supply 48 VDC and it would break out 5VDC and 3.3VDC for the Arduino. So I could use POE.
Also I am looking for (2) two relay 8 shields that would allow me to wire 8 relays to the Arduino compatible board and then I would add the 2nd on top of the first one. I believe the 8 shields are called an I squared C’s.
It would also have extender header pins since the voltage regulator is too high to allow the first shield to plug in.
Does Arduino make something like that or can someone suggest where I could get something like that.
Thanks.
Steve