1.44 spi tft lcd display st7735 ebay quotation

The new library supports low cost ST7735 displays connected to an UNO,Leonardo or Mega via SPI, it is based on the Adafruit GFX library with encoded fonts to save space.

It supports the displays advertised on eBay typically shown with a "Minions" image shown and often quoted as being of OLED type (which they are not). This particular display has an unusual x and y offset, if you use the standard TFT library you get spurious pixels on two edges. This new library has a GREENTAB2 setting for these displays.

The 1K2 resistors are required to protect the display being damaged by the 5V logic levels from the UNO, these limit the current flow. Ideally we would use a level shifter but the resistors work fine.