VL53L1 datasheet(11/39 Pages) STMICROELECTRONICS

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DocID029631 Rev 12

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VL53L1

Functional description

Note:

Ranging, multizone scanning and lite ranging modes require a handshake between the host

and the VL53L1, at each ranging operation. This handshake is mandatory to ensure the

right result is read by the host to continue the ranging operation.

Please refer to section Section 2.10: Handshake management for further details.

2.6

Digital processing and reading the results

The digital processing is the final operation of the ranging sequence that computes,

validates or rejects a ranging measurement. Part of this processing is performed by the

VL53L1 internal firmware and completed on the host processor running the software driver.

At the end of the digital processing, the ranging distance is computed by the VL53L1 itself. If

the distance cannot be measured (no target or weak signal), a corresponding status error

code is generated and can be read by the host.

2.7

Reading of the results

The VL53L1 software driver provides turnkey functions to read output results after the

measurement:



Signal rate



Ranging distance per object detected



Min. and max. distances where object is located



Dmax and range quality level

Full description is provided inside the VL53L1 driver user manual (UM2133)

VL53L1 데이터시트(PDF) 11 Page - STMicroelectronics