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A comment on Show HN: A high-speed laser camera trigger for under $2. Parent comment

Re:Show HN: A high-speed laser camera trigger for under $2 by aceperry on Friday July 18, 2014 @11:08PM (#8056540)
Yeah, the LED in the opto isn't even connected correctly. I doubt it would ever light up. I left a post on the website explaining how it should have been setup.
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