Re: Pen Up / Pen Down

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Well, it’s not exactly your issue, but you probably know the answer:

All I need to accomplish is to close a switch (that carries 9vdc) when a pin on the EBB board goes high, and open it when it goes low. (as discussed above)
That sounds like a job for a relay.
I see stuff about triggering a 5v relay from a 3v signal, but why introduce extra stuff if there is a simple solution?
I, however, don’t see that simple solution. (I don’t need, or want, ten surface mount relays….)
Please point me in the right direction.
Thanks again.
This is the closest thing that I can find: