However, if you use an LCD module with I2C interface, you only need 2 lines to process the display information. Now a days, it is not necessary to buy an expensive I2C LCD for this task because ...

While the SSD1306 OLED has somewhat become the go-to display for up-to-date projects ... To communicate with each LCD via I2C, two TCA9548A I2C multiplexers are connected to an Arduino, along ...

The PIC does the job of translating the original display, which had a fair number of custom icons and symbols, into sensible text-based equivalents and sending them to the 16×2 via I2C.