[BUG] SKR 1.3 and TinyBee exp1, exp2 documentation fault

[moriamoria]

Did you test the latest bugfix-2.1.x code?

Yes, and the problem still exists.

Bug Description

Hello,

After a falure of my motherboard, I have migrate from SKR 1.3 to tinybee.

My REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER is working with SKR 1.3 and not on tinybee.

The reason is the inversion of the rubun IDC 10 pins needed for tinybee.

Is it possible to add a comment in Marlin\src\pins\esp32\pins_MKS_TINYBEE.h line 123 that REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER ribon need inversion ?

Is it possible to change in Marlin\src\pins\lpc1768\pins_BTT_SKR_V1_3.h line 202 the definition of the idc pinour from :

/**
 *                 ------                                     ------
 *  (BEEPER) 1.30 | 1  2 | 0.28 (BTN_ENC)        (MISO) 0.17 | 1  2 | 0.15 (SCK)
 *  (LCD_EN) 1.18 | 3  4 | 1.19  (LCD_RS)     (BTN_EN1) 3.26 | 3  4 | 0.16 (SD_SS)
 *  (LCD_D4) 1.20   5  6 | 1.21  (LCD_D5)     (BTN_EN2) 3.25   5  6 | 0.18 (MOSI)
 *  (LCD_D6) 1.22 | 7  8 | 1.23  (LCD_D7)   (SD_DETECT) 1.31 | 7  8 | RESET
 *            GND | 9 10 | 5V                            GND | 9 10 | --
 *                 ------                                     ------
 *                  EXP1                                       EXP2
 */

to

/**
 *                 ------                                     ------
 *  (BEEPER) 1.30 | 1  2 | 0.28 (BTN_ENC)        (MISO) 0.17 | 1  2 | 0.15 (SCK)
 *  (LCD_EN) 1.18 | 3  4 | 1.19  (LCD_RS)     (BTN_EN1) 3.26 | 3  4 | 0.16 (SD_SS)
 *  (LCD_D4) 1.20   5  6 | 1.21  (LCD_D5)     (BTN_EN2) 3.25   5  6 | 0.18 (MOSI)
 *  (LCD_D6) 1.22 | 7  8 | 1.23  (LCD_D7)   (SD_DETECT) 1.31 | 7  8 | RESET
 *            GND | 9 10 | 5V                            GND | 9 10 | --
 *                 ------                                     ------
 *                  EXP1                                       EXP2
 */

in any case, i am lost with the comments.

the only thing I know is that lcd connected to skr 1.3 and tinybee request to invert cable, what a mess.

Bug Timeline

all the time

Expected behavior

comments should follow pin numbet of idc 10 pin notation.

Actual behavior

No response

Steps to Reproduce

No response

Version of Marlin Firmware

any version

Printer model

ortur 4 v1

Electronics

skr 1.3 and tinybee

LCD/Controller

REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

Other add-ons

No response

Bed Leveling

None

Your Slicer

None

Host Software

None

Don't forget to include

• A ZIP file containing your Configuration.h and Configuration_adv.h.

Additional information & file uploads

No response

[ellensp]

Unfortunately its not that simple

If your lcd comes with right angle plugs, (and some do) then the lcd is correct for the TINYBEE, but not the BTT_SKR_V1_3

Sellers of these screens sell it with an appropriate adapter for the it to work on a ramps, beyond that it buyer beware.

MKS screens and controllers have the exp1 and exp2 plugs rotated 180 from everyone else....

[thinkyhead]

Once we have the LCD Pins refactor completed there will be a warning anytime the plugs are reversed between the display and the board. That PR is pending and will be applied for the next release, after 2.1.3.