Address sensor sunlight to be hardcoded?

I have a Grove - Sunlight Sensor v 2.0 7/14/2021.

I2C scanner finds its at address 0x53.

Running it with GitHub - Seeed-Studio/Grove_Sunlight_Sensor Si1145demo it shows only
error message “si1145 is not ready”.

Must the address “0x53” (found by I2C scanner) be hardcoded in a library somewhere used by Si1145demo?

Si1145demo uses

#include <Wire.h>
#include “Arduino.h”
#include “SI114X.h”

Where must the address be written in?

Hi, if you bought the Grove - Sunlight Sensor V2 then your chip should be the SI1151, but you seem to be pretty sure that it is the SI1145, this is where you need to confirm. If you can’t detect the device with the SI1145 program, then most likely your chip is an SI1151 and it is the SI1151 program you need to use.