Wiring Diagram:

A clean approach to attach the Display to Arduino NANO:

All the components in place. SD Card adapter also is connected to the Arduino.

Reading the analog input A0:

Plotting the analog channel A0 using vertical lines:
A small video to show the wiring while enjoying a Tchaikovsky’s Waltz:
Testing my small library. 5×7 font in different sizes.

Testing drawRect() and fillRect() of the small library:

Using the small library to show A0 value and his histogram:

… this post is in progress… some code and examples…

Where I can find the small library?
Check this for a fast and compact TFT Library : https://github.com/cpldcpu/uTFT-ST7735