I’m about to order an Arduino Uno, and would like to have both ethernet and relay switching.
The relay switching to have my shutters go up & down depending on the outside light and inside temp (so in winter use the sun to warm up the house, in summer keep shutters down to keep the heat out).
–> so I’m thinking about ordering along the SEEED studio ethernet shield and the SEEED studio relay shield assuming that I can both connect them together on the Arduino.
Couple of questions:
(0) how much current (A) can the relay switch on 220V (Belgium standard current)
(1) this stacking will work ?
(I read on seeedstudio.com/wiki/Relay_Shield that the relay shield uses Arduino pins 4 to 7)
–> so what will happen with pin 4 ???
(2) if the stacking works, what with the heat from the ethernet shield ? I read a couple of posts about the ethernet shield getting hot … won’t this break or overheat the relays ?
(3) if anybody has a good suggestion on an outdoor light sensor I can connect to my Arduino, suggestions welcome.