diff --git a/arc_design_contest/2019/embarc_applications-arc_design_contest-2019-XDU_Four-quadrant-photoelectric-sensor-of-laser-positioning b/arc_design_contest/2019/embarc_applications-arc_design_contest-2019-XDU_Four-quadrant-photoelectric-sensor-of-laser-positioning
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+Subproject commit cd84590c4bd913e6c1aef0a95d59342695e2f373