2.2 inch 240 * 320 serial SPI instructions / * Program IO definitions: sbit LCD_CS = P0 ^ 0; // Chip Select sbit LCD_RS = P0 ^ 2; // Data / Command selector sbit LCD_SDA = P1 ^ 5; // Data sbit LCD_SCK = P1 ^ 7; // Clock sbit LCD_REST = P0 ^ 1; // RESET * / ● TFT Power: The screen is powered at 2.8-3.3V; remember not to use 5V (Modules with PCB's have built-in 3V regulator IC, for those you can provide 5V) ● backlight power (LED pin): backlight power up to 3.2V (A 3.3V power supply can be connected in series with a 10 Ohm current limiting resistor or a 5V supply in series with a 100 Ohm resistor). ● Data port level: In theory, you can not let the data port level exceed 3.3V. If you must use IO connections with a 5V microcontroller data bus, the TFT may have an internal voltage clamp, which can be used, but this is not always the present. You can do the sample test experiments, batch When designing a product, in order to improve product stability, it is best to use a low-voltage monolithic microcontroller (eg. run the microcontroller at 5V) or add a level converter IC. (This text was translated from the Chinese PDF using an online translator service; it was then corrected for readability).