Datasheet

comment out the first line, and uncomment the second, so it looks like:

Now upload the sketch to your Arduino. You may need to press the Reset button to reset the arduino and TFT. You

should see a collection of graphical tests draw out on the TFT.

Changing Pins

Now that you have it working, there's a few things you can do to change around the pins.

If you're using Hardware SPI, the CLOCK and MOSI pins are 'fixed' and cant be changed. But you can change to

software SPI, which is a bit slower, and that lets you pick any pins you like. Find these lines:

// Use this initializer if you're using a 1.8" TFT

tft.initR(INITR_BLACKTAB); // initialize a ST7735S chip, black tab

// Use this initializer (uncomment) if you're using a 1.44" TFT

//tft.initR(INITR_144GREENTAB); // initialize a ST7735S chip, black tab

// Use this initializer if you're using a 1.8" TFT

//tft.initR(INITR_BLACKTAB); // initialize a ST7735S chip, black tab

// Use this initializer (uncomment) if you're using a 1.44" TFT

tft.initR(INITR_144GREENTAB); // initialize a ST7735S chip, black tab