VL53L1 datasheet(13/39 Pages) STMICROELECTRONICS

No de pièce	VL53L1

Description	New generation Time-of-Flight ranging sensor with advanced multi-zone and multi-object detection

PDF	39 Pages

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Fabricant	STMICROELECTRONICS [STMicroelectronics]

Site Internet	http://www.st.com

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13 / 39 page

DocID029631 Rev 12

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VL53L1

Functional description

2.9

Ranging sequence

Figure 8. Ranging sequence

1. ttiming_budget is a parameter set by the user, using a dedicated driver function.

2.10

Handshake management

For all ranging modes described above, every time a ranging measurement is available, an

interrupt is generated. The GPIO1 pin of the VL53L1 is then driven high. Once the host

reads the result the interrupt is cleared and the ranging sequence can repeat. If the interrupt

is not cleared, the ranging operation inside the VL53L1 is on hold. It allows a good

synchronization between the VL53L1 and the host, avoids loosing results in case of delay

on the I2C bus, and is mandatory for multizone scanning operations.

It is strongly recommended to use the hardware interrupt pin to manage this handshake. But

if not possible a software polling mode remains available.

For more details please refer to VL53L1 user manual (UM2133)

VL53L1 Fiches technique(PDF) 13 Page - STMicroelectronics