BG720155241 It'sSPI, SDA sometimes references for half-duplex SPI MOSI lane (3-wire SPI). In 3-wire SPI mode you can read back data in half-duplex mode (need to configure SPI master on MCU). Alternative is to put... It'sSPI, SDA sometimes references for half-duplex SPI MOSI lane (3-wire SPI). In 3-wire SPI mode you can read back data in half-duplex mode (need to configure SPI master on MCU). Alternative is to put small resistor (e.g. 330 Ohm) between MOSI and MISO and connect MISO to the SDA lane of the LCD. In this case you can read data after writing dummy byte after the command.While there is no CS pin, you can not use any other SPI devices on the same bus. Ver mais