This repository contains a program to calibrate a 3.5" touch screen display shield, as shown below - Most 3.5" TFT LCD Touch displays use the ILI9486 Display Driver and include a resistive touchscreen ...

The Wire library expects you to use the 7 bit address. Valid addresses are between 8 and 127, the addresses between 0 and 7 are reserved. A full description of the board types and appropriate Arduino ...