This is a program to change the I2C address of the Melexis MLX90640. It was written and tested on the Raspberry Pi.
Edit the MLX_I2C_ADDR and NEW_I2C_ADDR values in change_addr/src/change_adrr.cpp to the values needed.
Use the command sudo i2cdetect -y 1 to test on RPi. If MLX90640 is detected, the I2C address will be shown in the table.