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It appears that the TFT35 V3.0 gcode file format requires the file extension to be ".gcode". However, if one wishes to use the ESP3D utility with the WiFi module there appears to be a filename format incompatibility as the ESP3D requires an 8.3 format. It would be nice if the TFT35 V3.0 firmware would accept an extension of ".gco" as well as ".gcode". As it stands now I cannot use the ESP3D UI to start a print job.
In addition, (and it might be related?) I cannot "Upload" a gcode file using the ESP3D UI. The file upload appears to start but after about 15% it stops with and "Error 0" message. The TFT35 V3.0 display then shows a message in red print at the top of the screen that reads "Busy processing, please wait..." . The TFT35 display is now non-operational. The touch functions allow changing screens but no commands are sent to the printer.

The LED doesn't keep its state/color after restart... Its state should be saved inb the EEPROM and restored after turning the TFT board on.

Maybe I'm technologically spoiled but I find the systems unbearably unstable at times. I'm up to hire someone to produce software that does the printer justice.

Maybe if we get enough willing votes we can solve the annoying little issues if BTT doesn't consider it necessary

I have BTT TFT 35 V. 3 with MKS Gen L MB. Touch screen mode works fine but when I try to activate Marlin mode, the screen is completely blank. Does not respond to any attempted input. I don't know what to do to fix it. Any help would be appreciated. Thanks.

When a flash drive is inserted into the USB socket of the TFT35 V3.0 running the .23 firmware the TFT35 stops responding to all commands/input. Version .21 of the firmware did not experience this problem.

Looking for some help with skr 1.2 E3 TFT35-E3 v3.0 Ender5. Everything looks good on boot but when I heat it up and start moving the xyz axis the screen scrambles in marlin mode. Any ideas?

This is a really simple thing, but there is no documentation on the orientation of the TFT LCD connector when plugging into the SKR 1.3

The buzzer sound seems extremely low - it's barely audible. Is there a setting that could override its volume? The sticker is taken off and the buzzer itself is exposed in my TFT case, but the sound is barely audible on any tone.

Is that normal on this screen?

steps to reproduce:
run the following melody GCode:

M300 S2349 P53
M300 S0 P53
M300 S2349 P53
M300 S0 P53
M300 S2349 P53
M300 S0 P53
M300 S2349 P428
M300 S932 P428
M300 S2093 P428
M300 S2349 P107
M300 S0 P214
M300 S2093 P107
M300 S2349 P857

Expected result: short tune audible over the sound of the fans running.
Actual result: barely audible, garbled audio coming from the buzzer on the back of the TFT.

im getting a echo error message every 3 to 5 min it beeps and message reads
unknown command: "m73 p8 r220"
and
m73 q8 s227
m73 p8 r221
m73 q1 6 s205
help
running skr 1,4 tmc2009 tft3.5 v3

On latest update on ready screen some icons are plain white with no information other than a percentage.

Hello all,
Having issues flashing my own .bin file to screen.
Followed all the steps for TFT35v3 and cannot get it to flash.
I set all parameters for my CR-10S on TFT>scr>user>Configuration.h
when I compile (Build) no errors.
I upload it to the .pio\build\BIGTREE_TFT35_V3_0 folder.
Then I copy file BIGTREE_TFT35_V3.0.24.2.bin to root of SD card.
Then I add the TFT folder with all icons and fonts ....stick in the touch screen...power it up and nothing.
Then I keep the TFT file in the USB and add the current firmware from github...same bin file name.... and it works.
Any ideas? Need more info? I didn't want to add random information.
Thank you,

I have connected EXP1 to EXP1, EXP2 to EXP2 and TFT cable.
Resulted in touch mode working OK but LCD12864 only show "LCD12864 Simulator" on top of screen, nothing else. I can still switching between 2 mode. https://photos.app.goo.gl/sngJyQcUzmGJ7Tcn9

I have tried connected EXP1 on SKR into EXP3 on TFT35, now every thing works LCD12864 show every menu. But if I press reset button or switch off printer and back on the screen go black cannot do anything. I need to unplug EXP1 cable and reconnect it again to make it back to work again. https://photos.app.goo.gl/G7FNPFoLU4RoAMkJ7

I am using a TFT35 E3 V3.0 with the latest firmware from BTT (as of last week). When I upload a gcode file that has just standard LF line endings, the printer just starts puking out gcode to the printer and not waiting for some commands that it should. If I open the file in a text editor and convert the line endings to CRLF it prints just fine.

I am putting the SD card / USB stick in the side of the display and using the print feature from the touch screen.

I have found that when using the Unified Menu, under Move, both Y+ and Y- cause the Y axis to increase by the requested amount. I have found the error to be in Move.c. The Case statements for Icon 1 (Y+) and Icon 5 (Y-) pass the same values to storeCmd.

I changed line 196 from "storeCmd(YGCODE_UP, item_move_len[item_move_len_i]);"
to "storeCmd(YGCODE_DOWN, item_move_len[item_move_len_i]);" and this resolved the issue for me.

I hope this helps for anyone else who runs into this issue.

Hello, I have a problem with the BIGTREETECH TFT35 V3.0.
BIGTREETECH TFT35 V3.0 in 12864LCD mode works without problems. In Touch screen mode, it constantly freezes, “unknown command M10 =”, “unknown command M105” and other errors that occur on any action from the screen are written on the screen. the seal hangs almost immediately and these errors pop up. Firmware for the latest version did not produce an effect.
Did you have the same problems, and how did you solve them? Thank you and sorry for my English.

I got my BTT TFT3.5 E3 V3.0 today and i really like it, but in Marlin Mode it completely glitches out. After some tinkering i figured out that it happenes because of the LIGHTWEIGHT_UI, which I had enabled in my Marlin Firmware.

Can you please add support for LIGHTWEIGHT_UI? :)

I am needing guidance. I have hooked up via teaching techs video with it not working, when I updated to the latest firmware I then lost some of the icons was just a blank squares. Is there something that I need to do to Marlin? I am on an Ender 3 with Marlin 1.1.9

Is there any way to increase the layout size on the .23 firmware like it is in the .21 firmware? The information takes up the entire screen in .21, but in .23 it's a smaller area of the screen when in lcd12864 mode

"leveling" icon on home menu is at the same place than "back" in sub-menu, so when I click too much on back, the printer run a leveling :(

on my TFT2.4_1.1 as we have the source code, I invert both, but for the TFT3.5 V3.0 I can't :(

other people would like to invert them ?

thanks for you reply and/or help

Where would I be able to find the bin for the original firmware that comes on the screen when it is brand new? I would like to revert back as I lile that layout the best

Hello,
Is it possible to extend the cable between the TFT and the Board, approx 15 cm more ?
If yes, do i need to use a cable with a shield ?
Thank you

I am using an SKR PRO V1.1 with the TFT35 V3. I configured Marlin to look at temp sensors that were not attached and enabled thermal runaway protection. This results in Marlin emitting a message about the problem and calling kill().

With the TFT in graphical touchscreen mode, no error is displayed and the TFT35 reports only that the there is no printer attached. I get the buzzer notification when the crash occurs, but nothing else. I have tried setting SERIAL_PORT and SERIAL_PORT_2 to 1,-1 and -1,1 respectively. This had no impact on behavior.

When in 12864 mode, I get the Marlin boot and an error message clearly indicating the problem, along with the buzzer notification.

I expect to get the same clear text notification when using the touchscreen interface.

Is there a configuration setting in Marlin that I am missing to make this happen?

I'm having issues connecting the screen (TFT35) to a SKR 1.3 motherboard with TMC2209 stepper drivers in UART mode.
I have set

#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER
#define SERIAL_PORT 0
#define SERIAL_PORT_2 -1

Tried swapping the serial ports, but no luck.
If i connect EXT1 & EXT2 i get nothing black screen not even blacklight.
If i connect serial i get backlight and "LCD12864 simulator" but no image on the screen.

if i disable
#define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

and enable
#define CR10_STOCKDISPLAY

then connect the screen to EXT1 (motherboard) and EXT3 (screen) the screen is working in LCD12864 mode.

I'm using the latest version of Marlin + Latest firmware version for screen from here.
What am i doing wrong here ?

What are the recommended Marlin 2.0 settings for the SKR Pro?
TMC 5160 SPI drivers installed.
I have tried several different 12864 code segments. The emulated 12864 screen does not populate with any information.
Performed both hot boot and cold boot. Same result.

Please, make the both touch screen and the knob usable. Sometimes it's a lot easier to use the know, to make adjustments. Sad to see it's totally useless in serial mode.

P.S. My point is to be able too use the knob, for example, for raising and lowering temps, setting offsets value etc, basically, as +- Which should be a lot more convenient, than tapping the screen.

When I switch to the LCD12864 simulator, it only shows a blue screen with the text 'LCD12864 simulator'.
After rotating the rotary encoder, the menu of the simulator shows up, but it doesn't load the main screen without rotating the rotary encoder.
Board: BTT SKR V1.3 with Marlin 2.0.5.3 - nothing special

I have installed the latest version of the firmware and I can't for the life of me get the screen to stay on or remain functional. It seems that after sometime the screen will just turn white and remain that way even after a reset.

Diagrams

I have the screen plugged into the proper spot like this : and the EXT cables plugged in like this:

Help

After attempting to start a print with an SD card it will start the process and then eventually just turn white and die. You can hear the buzzer go off every time to you tap the screen so there's something happening. Any suggestions?

I have my skr v1.3 set up to use neopixel led lights. It gives me indication when the heat bed and hotend are heating by changing colors. It also provides white light to iluminate the print bed for me when it's printing...then the lights turn green when the print is finished. Everything works fine when using the TFT35 V3 screen in lcd12864 mode. The led lights do not work in serial/touchscreen mode. Any idea why it doesn't?

With manual bed leveling selected in Marlin, the Leveling Icon is pressed. The system will home only. No other displays are noted.
The manual bed leveling works from the PC.
Still unable to get the 12864 screen to work.

The display works well at first start, but bug after a reset or restart without power failure of several seconds.
Screenshot of the display that works:

Capture lcd bug:

My config:

• MKS SBASE V1.3
• Marlin 2.X bugfix
• Power supply 12V 300W

Do you intend to publish source files allowing customisation ?

hallo,
i own an skr 1.4, the tft35 v3.0 and the the automagic shutdown module 1.2.
in the manual i readed that i can connect it but the Problem is that dont know how.
is it right that i can connect it to the tft ? the jst connector on the module has 2 Pins, the tft has 3.

Prints stop/freeze when printing from serial/touchscreen mode. everything works fine on lcd12864 mode. any ideas?

Just installed and updated firmware. The knob in marlin mode turns the selector in the opposite direction as all my other printers. I cannot seem to figure out why. Any thoughts?

Hi There,

is there a way to display the M117 responses from the Printer in the status screen in touch mode?

Hello and thank you for your schemes! I have problem - I accidentaly burned microcontroller of TFT35 v3.0 with my printer electronics(Arduino due, it had 12v on uart pins due to short circuit). Now it shows no connection even in stm32 st-link utility. The voltages of board (3v3 and 5v) seems to be normal and touchscreen seems to be undamaged, so I bought new STM32F207VET6 and soldered it instead of a dead one, now it is visible with ST-Link, but I found out that there is no bootloader file in repository. You gave bootloader for TFT V2.0, in one of the issues in "BIGTREETECH-TouchScreenFirmware" but for 3.0 it is not working(yes, I tested it :) I didn't seriosly think that it would work due to different chip)
Can I ask you to give bootloader file for V3.0? Thank you for answer

The printer was executing the command G29 (auto bed leveling) then the display went crazy it was on Marlim mode and it started jumping to Big Tree mode then to marlin mode and so on, then it stopped on the screen where the user chose the mode, now even with a reset it is stuck on that screen, it doesn't even show the boot screen... It is stuck. Also it doesn't accept to rewrite the firmware using the SDCard, so I basically lost the LCD.

When I copy the firmware and TFT folder to the root, it starts to update normally.
After it boots, many of the icons are missing, and are replaced by a splotch of white dots, as if a snapshot of television snow.

Even when I built a firmware myself, it told me that a number of icons were simply not present in the directory.

What am I missing?

I just got the TFT35 v3 and SKR Mini e3. When I go into the Move menu and select an increment of 1mm the Z axis appears to move 10mm, while X and Y are normal. I didn't change anything in the firmware that I'm aware of to cause this. Any advice would be appreciated.

Edit: I see now my extruder is doing the same thing. I tell it 1mm and it extrudes 10mm.

What is the correct pinout for the ESP-01 module? It appears the ESP module needs to be inverted to apply power correctly. The other pins do not match the locations either. Just trying not to let the smoke out. Very little mention in the manual. Is programming needed?

Is there a way to add additional pages/menu items to the touchscreen?

Started a print via usb. The bed gets hot, but the temp never changes on the display on the touchscreen. also the led lights do not respond to temp changes on startup. Anybody else experience this?

When you switch between mode 12864 mode and serial mode gives error. on 12864 mode it says printer is ready, on serial mode it says no Printer attached. updated the firmware same error is initiated

was wondering about BIGTREETECH TFT35 V3.0 in mode 12854 all pictures i see the background is black and text green.
is there any options then to change background colors?

Hello guy's
I have and odd experience. The TFT35 V2 i have sees the on-board SD card of my SKR Mini E3 V1.2.
The issue is after i select a file to print i am taken to the screen to monitor the print but everything on the display side stops working let me put some colour to what happens:
1.Display timer Starts counting. (that works)
2. Bed and Nozzle temps show 26/0 28/0 ( basically close to the room temp) The requested values do not get there and the actual never updates
3. Printer starts to heat up performs G28 and G29 accordingly and starts to print

If i try and cancel the print the screen freezes and displays " Loading" and remains there.

I have #define SDCARD_CONNECTION ONBOARD (set)
and #define REPRAP_DISCOUNT_FULL_GRAPHIC_SMART_CONTROLLER

Before attempt to print i can manipulate all settings and the display works fine. have not tested to print from USB or from LCD SD slot.

Everything works fine if i use the simulated graphical display.

Hi, I just have this tft (v3.0) with a skr pro 1.1.
The babystep function doesn't work when trying o use it in touch mode : increasing or decreasing the value don't make the bed up or down !!!
If I switch to LCD12864 mode, babystep is working fine...

Test with same print gcode file.

I use the Unified Menu.

Thank you for your help.

I am shooting in the dark. The instruction for TFT-35 V3 is not adequate. I need a schematic diagram to figure it out.

When selecting the extrusion menu in touch screen mode whilst printing and exiting out of it without pressing anything to extrude any filament my extruder extrudes a blob of filament all by itself!
I have an Ender 3 pro fitted with an SKR E3 mini 1.2 and a TFT35 V3.0.

The print is being sent from the connected Raspberry pi running Octoprint.

Reloading V3.0.25.2 works correctly. Does it happen to you too?