not enough current for relays?

[Boyan Silyavski]

Actually ignore my last post...if your relay board is the same as mine, from recollection the 5V from your driving IO pin, doesn't energize the relay directly, but does so via a tranny/fet. Are you supplying the relay board with a separate 5V supply?

BOB is supplied with 24v, relay board with 5v. I use different supplies for galvanic isolation of BOB, sensors,etc.