Data Sheet

DocID029133 Rev 1 3/7

AN4846 Purpose

1 Purpose

The purpose of this document is to give an example of how multiple VL53L0X devices can

be used on a board design while only using a single I2C interface. The VL53L0X is a

ranging sensor that uses time of flight principle to measure distance to an object. The

control and output interface is an I2C interface. Each VL53L0X device has both a XSHUT

pin and an interrupt (GPIO1) pin, which will be used in this design setup for using multiple

devices.

The uses for multiple VL53L0X on a single design can include the following:

1. Distance sensing in multiple directions

2. Robotics with multiple sensors

3. Gesture Detection

4. and much more!

2 Multiple VL53L0X application

This chapter shows how multiple VL53L0X devices can be used on a board design while

only using a single I2C interface to interact with all the devices.

Each VL53L0X device has both a reset pin and an interrupt pin, which can be used to

enable a multiple device setup.

2.1 VL53L0X control management

1. Figure 2 is a typical example schematic using a VL53L0X device. Since the VL53L0X

can have the I2C device address changed by doing an I2C write once it is booted, a

unique reset pin would be needed for each VL53L0X used in a design. Each device is

then taken out of reset one at a time, and then the I2C Device Address is changed to a

new unique address. This can be done by using multiple GPIO pins from the

microprocessor on the board.