Hi Tessel-Forum,
is it possible to have more that one relay module attached to one tessel cause 2 channels are a bit less, i think.Maybe it's not a good question but i didn't found an answer to, it so i hope you'll help me.
Cheers Tobias
Yes.
You can plug relay modules into each module port and the outer row of the GPIO bank, for a total of five modules and ten relays.