Makelangelo Mega+ Ramps 1.4 + RepRapDiscount Full Graphic Smart Controller

[James Deland]

Hello new to this project hoping to get it all working

Using Makelangelo Firmware 9.2.0 downloade2 @nd of March 2021
Issue In getting is that All I can get out of it is a chattering lift stepper.
The LCD display is lite with a blank blue screen. no beeps

In the Configure.h file I change and set the following

#define MACHINE_STYLE POLARGRAPH // Change this

#define HAS_LCD // if you have an LCD panel
#define HAS_SD // if you have SD card support on your LCD panel (must be on panel?)

//#define LCD_IS_128X64 // reprapdiscount Full Graphic Smart LCD Controller
#define LCD_IS_SMART // reprapdiscount Smart LCD Controller (including XXL model)

#ifndef MOTHERBOARD
#define MOTHERBOARD BOARD_RAMPS // change this

Tried changing the following in the LCD.h file to no avail
//—————————————————-

#ifdef LCD_IS_SMART

// there is no practical per-pixel control.
//#define LCD_PIXEL_HEIGHT 64
//#define LCD_PIXEL_WIDTH 128

// there is no font selection.
//#define FONT_HEIGHT 9
//#define FONT_WIDTH 4

// # of characters
#define LCD_HEIGHT 7
#define LCD_WIDTH 20

#endif

No matter what I try I cannot get a display. What Have I set wrong please.

James

[Dan]

https://discord.gg/QtvHqAv8yp is our discord group. Come with pictures of your hardware, maybe your model has different pins or something? Have you tried adjusting the contrast on the back of the LCD panel?

[James Deland]

Have verified that the display is fine, It works perfectly when connected to my 3d printer.

The Machine home fine when G28 is imputed from the terminal

Will post on Discord

[Pablo]

James, I also had the blank LCD screen on my Mega+Ramps 1.4+ 12946 controller until I found this in board_ramps.h:
//#define LCD_PINS_RS 19
//#define LCD_PINS_ENABLE 42
//#define LCD_PINS_D4 18
// these alternate pins might help – see https://www.marginallyclever.com/forums/topic/using-reprap-kit-from-amazon-ramps-1-6-lcd-display/#post-22131
#define LCD_PINS_RS 16
#define LCD_PINS_ENABLE 17
#define LCD_PINS_D4 23
The above three pins were uncommented, the below three were. So I uncommented the below three 16,17 and 23 and it works –
fairly. I can now see the menu on the display but can hardly navigate because the rotary knob works only seldomly. Still trying to figure that out.

Same for you?

Pablo

[Author]

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