Reading and logging data from an LCD display (AS1108 - SPI interfaced LED driver)

Hi all,

I have a ‘dumb’ device (PH meter) with an LCD display which is driven by an AS1108 LED driver.
How difficult would it be for me to listen in on the signal the microprocessor is sending the LED driver over SPI with an arduino/esp32 and integrating the date into HA?

Many thanks in advance