How accurate are time of flight sensors?

I wanted to use a time of flight sensor to measure distance in my latest project but wasn't sure if it would be accurate enough. So, of course, I bought five time of flight sensors, hoping to land one that would work. Were they accurate? I made a video to explain.

Nice video. Have you considered the sensor's tolerance, it is +- something. Also it appears you may have a timing discrepency between the two microprocessors. A schematic and links to the sensors would be a big help.

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