Set-up

AN4545

4/27

DocID026571 Rev 1

1

Set-up

1.1

Powering the module

To power the module, we recommend connecting a 2v8 supply to AVDD and

AVDD_VCSEL. AVSS and AVSS_VCSEL must be connected to ground.

Note:

GPIO-0 is set as a shut down pin by default hence must be pulled high to avoid shutting

down the device.

Note:

AVDD_VCSEL must be applied before or at the same time as AVDD to ensure internal error

check on the IR emitter passes.

Figure 2. VL6180X block diagram

1.2

Communication with the VL6180X

Communication with the VL6180X is via the I²C bus. The default 7-bit address of the

VL6180X is 0x29. It can be changed by the user to any 7-bit addresses by writing to the

I2C_SLAVE__DEVICE_ADDRESS {0x212} register. The SCL and SDA lines should each

have a pull-up resistor on the I²C bus.

Note:

The VL6180X uses a 16-bit register index.