#define RST 12 #define CE 11 #define DC 10 #define DIN 9 #define CLK 8 void LcdWriteCmd(byte cmd) { digitalWrite(DC, LOW); //DC pin is low for commands digitalWrite(CE, LOW); shiftOut(DIN, CLK, MSBFIRST, cmd); //transmit serial data digitalWrite(CE, HIGH); } void setup() { pinMode(RST, OUTPUT); pinMode(CE, OUTPUT); pinMode(DC, OUTPUT); pinMode(DIN, OUTPUT); pinMode(CLK, OUTPUT); digitalWrite(RST, LOW); digitalWrite(RST, HIGH); LcdWriteCmd(0x21); // LCD extended commands LcdWriteCmd(0xB8); // set LCD Vop (contrast) LcdWriteCmd(0x04); // set temp coefficent LcdWriteCmd(0x14); // LCD bias mode 1:40 LcdWriteCmd(0x20); // LCD basic commands LcdWriteCmd(0x09); // LCD all segments on } void loop() { }