APIs for Interrupt Based People Count - VL53L1x

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Hi,

Are there any examples for Interrupt based people count detection?

We required Interrupt method for power optimizations, longer battery life.

Please help us.

Regards

Mariswamy

Time of flight

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John E KVAMBest answer

ST Employee

Unfortuantely the Time-of-Flight sensors work by shooting out some light and detecting what comes back. So they consume power with each range. The only ways to save power are to range less often and to range for less time.

Ranging less often works if the person is willing to stand there for a while - think toilet flush applications.

Ranging for less time works, but you get a less accurate distance.

The only real way to save power would be to use a passive I/R sensor, then use the ToF sensor to double check the PIR sensor as they are not very accurate.

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