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With only a single pin tacked, determine whether the header is soldered sufficiently,
i.e. it is perpendicular to the board. Doing so is particularly critical for this set of
headers since they will be used with jumpers. So take caution before proceeding to
solder the full row. Repeat these steps for the other 2 headers to complete this part of
the assembly.
Step 2: I/O Headers
Figure 8: I/O Header Locations
Following the same procedures for tracking down and testing for perpendicularity of
the headers in step one, solder the headers highlighted in Figure 8.
Figure 6: Header pin from side
Figure 7: Header Alignment Verification
