A demo on how to use potentiometer input and display the voltage output of the potentiometer that it reads to the LCD. It might be simple as you think but the LCD requires a device driver in order for the developer to use it.
Techsource Technical Team (2020). LCD Volt Meter (https://www.mathworks.com/matlabcentral/fileexchange/52296-lcd-volt-meter), MATLAB Central File Exchange. Retrieved .