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VL53L1CX Measuring iPhone Distance Accurately

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Associate III

Dear ST team,

Hello, I am using the VL53L1CX with the 3.2.1 library and have noticed that when measuring the distance to an iPhone, the results are not very accurate and tend to jump between several different distances. Is this caused by the iPhone’s Face ID sensor, the reflective glass surface of the iPhone, or some other reason? What can I do to improve the measurement accuracy in this scenario?

Thank you for your help.

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