Datasheet

Next you can place the four 'stacking' headers.
They go right next to the terminal blocks.
With the new R3 version, you'll use 1 pc 10pin
stacking header, 2 pcs 8 stacking header and 1
pc 6 stacking header
Flip over the PCB, you can lay it down on a table
again, just make sure that all the headers are
sticking out straight.
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