LCD ARDUINO 1Disp - Gnd 2Disp + + 3Nc Nc 4Nc Nc 5Nc Nc 6Rst 11 7AO 9 8SDA 8 9SCL 13 10CS 10 11SCK SD SCK Only used when using the SD card slot 12MISO SD MISO " 13MOSI SD MOSI " 14SD_CS SD CS " 15Led+ 16Led-