@Aaryn:
No, there is beeping. I also think it is the wrong LCD type used in the firmware, but I don’t know which one is the right.
The following I have tried:
First with the "MPCNC813MRAmbo_GLCD_T8"configuration:
//#define ULTRA_LCD // Character based
//#define CARTESIO_UI
//#define REPRAP_DISCOUNT_SMART_CONTROLLER
//#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER //MPCNC
Inside the Basic Marlin are more LCD type´s. These I tried:
//#define ZONESTAR_LCD // Requires ADC_KEYPAD_PIN to be assigned to an analog pin.
// This LCD is known to be susceptible to electrical interference
// which scrambles the display. Pressing any button clears it up.
// This is a LCD2004 display with 5 analog buttons.
// Generic 16x2, 16x4, 20x2, or 20x4 character-based LCD.
//
//#define ULTRA_LCD
// These require F.Malpartida’s LiquidCrystal_I2C library
// https://bitbucket.org/fmalpartida/new-liquidcrystal/wiki/Home
//
//#define LCD_SAINSMART_I2C_1602
#define LCD_SAINSMART_I2C_2004
But at the last config. i have the problem, that I don’t know the I2C-adresse from the lcd controller. My coding skills are not good enough to write a scanner for this specific setup :(
