reprap lcd screen manufacturer
Depending on the vendor you may find boards using an ST7920 IC Driver or a ST7565 IC Driver. Boards using a DOG-M128 Display use a ST7565 IC Driver. The more common and generic boards use some flavor of a 12864 LCD with the ST7920, this is the case with most board you find in online stores.
This display board is supported by the most popular 3D Printer firmwares, yet differences in the LCD Drivers used and others may dictate the level of support in a given 3D printer mainboard and firmware combination. See connection for more details.
Depending on the vendor you may find boards using an ST7920 IC Driver, a ST7565 IC Driver, or other. Boards using a DOG-M128 Display use a ST7565 IC Driver. The more common and generic boards use some flavor of a 12864 LCD with the ST7920, this is the case with most boards you find in online stores.
The basic requirement to add support in the Marlin Firmware is to enable the REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER in the "Configuration.h”. For more details check Marlin"s page on how to configure the firmware, see the LCD section.
The firmware also offers other define constants for some popular variants of the "RepRapDiscount Full Graphic Smart Controller", that may use another driver or has a different PIN/layout or other requirement. Look at options under the the "LCD / Controller Selection" sections in the "Configuration.h” file.
To enable the correct LCD in the firmware it is important that you identify if your version of a "Smart Controller" is indeed using the ST7920 driver or if it has a different pin requirement. If that is your situation, then you need to see if the firmware already has support for your version of "Smart Controller" and select it accordingly.
Another important aspect of compatibility is dictated by your printers mainboard it self. If you board has a dedicated LCD connector you have to check at minimum two things:
For example a connection that shares the SPI with the an ST7920 LCD will not work and will produce garbage on the LCD. (The ST7920 can not share an SPI/Serial interface).
As I were developing the RAMPS 1.7 and RAMPS 1.4.4 shields, I discovered that creating LCD add-on boards would be an interesting way to do further testing and/or add easy-connect functionality to these RAMPS shields.
As the RAMPS 1.7 shield does not have an AUX-2 connector, this LCD board has an AUX-6 connector, which simulates the AUX-2 port, so it becomes possible to connect LCD displays to the RAMPS 1.7 shield, where the LCD is otherwise designed to connect to the AUX-2 port of a standard RAMPS board.
On the RRD LCDs there are provisions for the addition of a Stop or Reset button. This option already has a dedicated wire in the EXP-2 port connector. This wire can be directly connected to the Arduino Reset pin or to D45, by setting jumper J2 on the LCD-03 board.
This RepRap Ramps compatible 4x20 Character LCD display kit is a smart controller board to pick the file that is going to be printed and to do calibrations by requiring no computers.
There is a 4x20 character (white characters on a blue basement) LCD screen, a potentiometer to switch the menu (it is also used as a button), a button to stop, buzzer for warning, a trimpot to adjust the contrast of the LCD screen and an SD card plug on the board.