Driver chip: ST7789. 3.4-wire SPI serial bus, only a few IO can light up. Display interface: 4-line SPI interface. Panel material: for TFT. SCL: LCD SPI bus clock signal. SDA: LCD SPI bus write data signal.
3.4-wire SPI serial bus, only a few IO can light up. Display interface: 4-line SPI interface. Panel material: for TFT. SCL: LCD SPI bus clock signal. SDA: LCD SPI bus write data signal. 4-wire SPI serial bus, only a few IO can light up.
