Hello,
Not too sure what your looking for but the LCD display board can display alphanumeric characters as well as up to 10 custom characters. Potentiometer on the board can vary the contrast. That's about all the board does, it doesn't play audio or anything
The LCD has 2x16 display but the RAM is actually 80 bytes so you can potentially store data into the non viewable portion of the display buffer however the read write signal is tied to ground in hardware on the E-block so you cannot read back the data.