Hi Jeanv, Here's the break-out board I used: https://www.amazon.com/gp/product/B0...?ie=UTF8&psc=1
I actually used this because I had intended on hooking up a variety of I/O to this RasPi, and thought that some of the proposed uses might need circuitry I could just prototype right onto this board. It's overkill for a few dry contacts, honestly, and since it doesn't have thru-pins (at least not with the dual-row connector provided, this has to go on top of the relay hat. That's a little tricky because the relays are actually pretty tall and prevent this board from seating all the way down.
I actually used this because I had intended on hooking up a variety of I/O to this RasPi, and thought that some of the proposed uses might need circuitry I could just prototype right onto this board. It's overkill for a few dry contacts, honestly, and since it doesn't have thru-pins (at least not with the dual-row connector provided, this has to go on top of the relay hat. That's a little tricky because the relays are actually pretty tall and prevent this board from seating all the way down.
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