Just finished a DIY build using a Creality 1.1.4 board and the display Open-source 3D-Chameleon MMU Using Creality Ender3 Electronics //Creality E0 #define extEnable 14 #define extStep 1 #define extDir 0 //Creality Z-axis #define selEnable 26 #define selStep 3 #define selDir 2 //Creality Y-stop #define trigger 19 The display is more complicated.. using u8glib and the commands are quite different. Haven't made all of this switchable by #define void oledclear(){ #ifdef Creality oled.firstPage(); do { } while( oled.nextPage() ); #else oled.clear(); #endif } void displayText(int offset, String str) { oled.firstPage(); do { oled.drawStr(0,22,str.c_str()); } while (oled.nextPage()); } Setup: #ifdef Creality oled.setFont(u8g_font_6x10); oled.firstPage(); do { oled.drawStr(0,22,"3DChameleon Mk4"); //print a welcome message } while (oled.nextPage()); #else // enable OLED display oled.begin(&Adafruit128x64, OLED_I2C_ADDRESS); //... rest of normal display setup displayText(0, " Ready!"); #endif libs: //#define Creality //enable for Melzi board #ifdef Creality #include <U8glib.h> #endif #include <SSD1306Ascii.h> //i2C OLED #include <SSD1306AsciiWire.h> //i2C OLED #ifdef Creality U8GLIB_ST7920_128X64_1X oled(30, 17, 28); // Creality Melzi with single ribbon cable #else // Declaration for an SSD1306 display connected to I2C (SDA, SCL pins) #define OLED_RESET -1 // Reset pin # (or -1 if sharing Arduino reset pin) #define OLED_I2C_ADDRESS 0x3C SSD1306AsciiWire oled; #endif