Pixhawk button + USB/LED module mount
thingiverse
A safety button mount for Pixhawk and an integrated LED/USB module that can be fitted onto any frame equipped with two mounting bars. The dimensions of these bars can be tailored to suit specific needs. The LED/USB module is a single-board design, commonly referred to as the 'china type', which combines both functions on one board. For users requiring the 3DR version with separate LED and USB boards, an alternative solution can be found at http://www.thingiverse.com/thing:724612.
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