skr 1.3 lcd displays made in china

BIGTREE-TECH’s SKR V1.3 offers a great amount for its money. Including 32-bit processing, built-in UART channels and Smoothieware and Marlin compatibility. Is this too good to be true? Let’s find out.

BIGTREE-TECH was kind enough to supply the SKR V1.3 along with some TMC2208’s V1.2. Furthermore they also supplied a TFT35 V1.2 Touch Screenfor the purpose of this review. However the set up guides for the firmware configuration and the BIQU TFT35 will be covered in a further post.

Firstly SKR V1.3 from BIGTREE-TECH, comes packaged in a black box with a RED logo on the front. On one side there is the companies official website address, and the other a link to their Facebook group.

Inside the box and the SKR V1.3 is sealed in an anti-static bag. While alongside is the supplied micro SD memory card and a USB cable. On the memory card you will find firmware for both Marlin 2 and Smoothieware. However it is likely out of date. But keep a hold of it for reference and start with the latest version of either Marlin V2 or Smoothieware. Also included is some spare jumper bridges and a business card with the company details.

One thing that is particularly nice on the SKR V1.3 is how cleanly soldered the board is. It makes a nice change to look at a PCB and get excited about how good it looks. Perhaps its a bit geeky to get excited over this. Nonetheless it makes a nice change not to wash flux off or re-solder any points.

The stepper drivers themselves are extremely clean. Only one TMC2208 had solder from the chip seeping through. This can be a normal occurrence and doesn’t effect the stepper drivers performance or its cooling. If you are wishing to setup the SKR V1.3 with TMC2208’s in UART mode chances are you are going to need to solder J2 on the back of the stepper driver to the adjoining pad.

Supplied in just an anti-static bag the BIQU TFT35 V1.2 Touchscreen isn’t quite as finely finished as the SKR V1.3 or the TMC2208’s V2.1. Whilst that’s not critical the functionality of the touch screen is important. The screen itself doesn’t seem very well handled during the manufacturing process. It is not particularly firmly attached and the rear of the screen is peeling away, with the amount of light from it I can only presume it is the TFT35’s backlight, and is not adhering well. However time will tell if this will affect performance. As long as it functions and behaves responsively, then it should not overly matter.

BIGTREE-TECH’s SKR V1.3 features the 100 MHz LPC1768 ARM cortex-M3 CPU for the SKR’s 32-bit processing. Supporting the following stepper drivers TMC2130, TMC2208, TMC2100, ST820, DRV8825, and A4988 stepper drivers.

Depending upon your particular printer setup, the SKR V1.3 can either be powered with a 12 V or 24 V and is protected with removable 10 Amp and 20 Amp blade fuses. The 20 Amp fuses is for the heating systems such as heat bed and extruder. Whilst the 10 Amp fuse is taking care of the stepper drivers and elements on the board itself.

The SKR V1.3 natively supports dual extruder setup with a single Z-axis, dedicated pins for TFT touch screen, and dedicated pins for a BLTouch automatic bed levelling probe.

BIGTREE-TECH’s SKR V1.3 is a remarkably capable 32-bit board, which punches way above its price tag. Ridiculously so! Currently for sale at around $19 USD with free delivery, that’s £15 delivered to us in the United Kingdom for the board.

Taking full advantage of what Marlin firmware V2 has to offer, the SKR V1.3 teamed with their faultless TMC2208’s offers faster and finer finished prints than an 8-bit setup. Whilst this is to be expected, I still was not expecting as good a performance for a board costing as low as the SKR V1.3.

If your thinking of moving from an 8-bit to a 32-bit board you cant go wrong with the SKR V1.3 from BIGTREE-TECH. If I was to say one thing it would be, Just order it! Ordinarily I would mumble to the screen if someone wrote that, but for a board with the capability of the SKR V1.3 and price. It would be simply mad not too!

It would have been an extra touch to have had supplied spare blade fuses, but not a deal breaker. The only complaint that I have with the SKR V1.3 is lack of dedicated servo pins. Despite there being workarounds in my opinion there should be more connectivity not less.

Note: Due to varying Board/LCD/Cable Header direction if the LCD does not light then rotate the plug end at ONE END (LCD side or board side) 180 degrees and plug it into the header. Do this for both EXP1 and EXP2 if the LCD does not light.

Having the same issue w/ the "no printer attached" message. Hardware is the SKR v1.3 and TFT35-V2.0. This is a conversion project that is updating a CR-10 w/ the above hardware. Basically I set the machine up using the stock CR-10 screen and configured Marlin-bugfix-2.0.x to test all the functionality with the SKR. That process worked and the machine functions fine with the stock LCD. Once I had everything working the next step was upgrade to the touch screen. This is where I"m having problems.

Connected (and checked the continuity) of the black (5) wire ribbon cable to the SKR V1.3 pins marked TFT on the control board and plugged the connector in to the RS232 plug on the TFT. When I do that TFT powers up and I am able to move the printer axis, home, adjust fan speed but not see any temp info on the screen and there is the "No printer attached!" message being displayed. It is the same for both the classic and the unified versions of the firmware.

I am unable to move the the printer axis at all. I"m not sure if I have a something in the "LCD Controller" section defined in Configuration.h or Configuration_adv that is causing an issue. Feels like I might have something configured when I was using the stock CR-10 for testing that may be a problem? When using the TFT"s do you comment out anything that has to do with a LCD controllers in Configuration.h? Attached are the configuration files that I am using at the moment that seem to allow me to move the axis but not connect to the printer if that helps.

I"m puzzled that you struggle to get your SKR V1.3 to work. From the online information I came across, it seemed like an established controller to setup and configure.

The big issue i see here is people thinking the TFT35 V2.0 is like other LCD screens they can configure in Marlin and connect. Its not. Its a standalone smart device that acts like a laptop or raspi connected to the USB serial port on the SKR1.3. All it requires is that its connected correctly from "TFT" on SKR1.3 to RS232 on TFT35-V2.0 and that the baud rate set in Marlin ( most use 115200) is also set on the screen settings.

Hey Andrew- Sorry to hear your are having trouble. I went through the same issues back when I started that first post. Wanted to reply to this because I recently upgraded from the SKR1.3 to the SKR1.4 Turbo recently and am also using the TFT 35 V2.0 and am not having any issues at the moment. When I was originally having the "no printer attached" problem I think I was trying to configure too many things at once and I probably had something crossed up that I wasn"t aware of due to my inexperience. The way I got it to work was to start with a fresh copy of Marlin and then started configuring things one by one and tried to keep it as simple as possible. Anyway I"m running a modified CR-10, but if you would like me to send you my configuration files so that you can take a look at them or some pictures of my board I"d be happy to do that if you think it would help. Right now I"m running a Marlin 2.0.5.3 on the SKRv1.4Turbo and a BIQU_TFT35_APP1_V2.0.25.1 that has been customized for my machine on the TFT 35 V2.0. Not sure if you use Notepad++, but it has a great plugin that allows you to do a document compare and see how your configuration files compares to someone else"s. Brent

Hey Andrew- Sorry to hear your are having trouble. I went through the same issues back when I started that first post. Wanted to reply to this because I recently upgraded from the SKR1.3 to the SKR1.4 Turbo recently and am also using the TFT 35 V2.0 and am not having any issues at the moment. When I was originally having the "no printer attached" problem I think I was trying to configure too many things at once and I probably had something crossed up that I wasn"t aware of due to my inexperience. The way I got it to work was to start with a fresh copy of Marlin and then started configuring things one by one and tried to keep it as simple as possible. Anyway I"m running a modified CR-10, but if you would like me to send you my configuration files so that you can take a look at them or some pictures of my board I"d be happy to do that if you think it would help. Right now I"m running a Marlin 2.0.5.3 on the SKRv1.4Turbo and a BIQU_TFT35_APP1_V2.0.25.1 that has been customized for my machine on the TFT 35 V2.0. Not sure if you use Notepad++, but it has a great plugin that allows you to do a document compare and see how your configuration files compares to someone else"s. Brent

OK. One other thing to check. I was literally just printing something on my machine right now and wiggled the wires on the ribbon cable connecting to the board ever so slightly and the the LCD lost connection and gave me a no printer error. Did you check the actual ribbon cable itself to make sure that all the conductors were enact? Anyway hope you can get it worked out. B.

When i compile for SKR1.3 ( Marlin 2.0.5.3) i see all those items scroll past too but it doesn"t effect the end result. In fact the latest firmware i compiled uses the standard LCD 2004 and it works along side the TFT35 V2 fine

Maybe a simple problem but have you double checked that the TX & RX are crossed i,e, TX on the TFT goes to RX on the SKR1.4. That has caught me out on other set ups before

Maybe a simple problem but have you double checked that the TX & RX are crossed i,e, TX on the TFT goes to RX on the SKR1.4. That has caught me out on other set ups before

In Marlin the SD card enable ( uncomment) refers to screens that use EXT 1 & EXT 2 ports on the SKR 1.3/4. The TFT35V2 handles it"s SD card slot internally so no changes are need in Marlin

To be clear the TX & RX have to be crossed to work! TX on SKR 1.4 should be connected to RX on TFT 35V2. I"ve noted the 1.4 has the pins 18O rotated compared to 1.3 . On the 1.4 the RST is nearest the SD card slot whereas on the 1.3 it"s furthest away!

Maybe a simple problem but have you double checked that the TX & RX are crossed i,e, TX on the TFT goes to RX on the SKR1.4. That has caught me out on other set ups before

I"m having the exact problem as @RavenWarrior. I have a SKR1.4 Turbo and the TFT35 v2. I"ve tried the suggestions and also cannot get anything to work. I"m not sure I understand what support is asking you for. I"ll have to pull my board out and look at the bottom as well. I"ve written to support but haven"t gotten a response yet so I"m hoping I might get some progress here.

I"m thinking there"s simply something wrong with the TFT35 detecting the printer and getting feedback. Ignoring the "No Printer Connected" message, I tried to do a few things on the printer via the TFT35. I can preheat for PETG then cooldown, turn fans on and off, move each axis around, and even extrude filament. It seems like the printer receives commands but isn"t able to give feedback to the LCD. I was going to attempt to print from the SD card on the LCD but it can"t open the SD card even though I was able to flash the firmware with that same card. I have my original Ender3 Pro LCD still hooked up so I"m able to see the status of the preheat to know that it"s actually setting the hotend to 240 as I sent from the TFT35.

You have a SKR1.3 and I have a SKR1.4 Turbo so it"s possible the serial ports might need to be a little different. They don"t appear to have an SKR1.4 video showing FW config settings unfortunately. It feels like I"m close since I can at least send commands.

Still an issue with the latest bugfix2.0 build. TFT connection on the SKR Mini E3 does not work with dual z enabled. I"m using a physical splitter and one stepper port to work around this.

Running the gcode-script the startup code (homing and waiting for user to press button) is ok, then some more gcode commands are executed and then the board freezes (no stepper movements anymore, no reaction on lcd, usb-serial-connection to raspbery simply disappears / disconnects). The time it takes for the board to freeze varies (one second up to some seconds). Someone said above the problem occurs on long movements: Well, in this case there are only small movements, but slow movements, as I"m using the board for a cnc milling machine.

Disabling ADAPTIVE_STEP_SMOOTHING, HOST_KEEPALIVE_FEATURE and setting MM_PER_ARC_SEGMENT to .3 instead of 1 (differences from my config to the config in the bigtree-tech-repository) somewhat helped ... no freeze anymore! BUT: after some time, the Z stepper doesn"t move anymore. Z-Movements instead take place on the Y-Axis! This persists until reboot and also affects moving the axis via lcd menu. And in the first line of the lcd display there are chinese chars ...

I have my first 3D printer, a Creality Ender 5 that I"ve tried several boards on. The stock board works and nothing more - and it"s loud. I first switched to an MKS Gen L with TMC2208 steppers and a fanless power supply - Wow, huge difference in noise levels. Then i jumped to a Duet Maestro (Genuine, not a clone) and it"s an awesome board - ticks almost every box of mine except being able to customize, change steppers, etc. After that I bought an SKR v1.3 - great board that forced me to learn Marlin 2.0 since it"s 32bit. I never installed it because I learned about the SKR Pro before i got around to installing it.

This SKR Pro was a bit of a challenge because of how new it is and there"s not the same wealth of info like there is for say the Gen L. At first, I though my SKR Pro wasn"t working because I couldn"t see the SD card when I connected the board to my computer with a USB cable. Kingprint reached out to me right away and answered my questions and pointed me in the right direction. I still haven"t connected this board to my printer because I"m happy enough with the Duet. But, I"ve got the firmware all configured and have tested it with steppers, LCD and thermister as well as the Wifi module. I"m collecting parts for a major overhaul and will install the Pro then - I"m really looking forward to that.

I’ve had the Skr Mini E3 and the BL-Touch lying in my room since January, as I had installed the Skr Mini board into my 3D printer earlier, the time has come to install the BL-Touch to the printer. So let"s get started.

The steps in this video are more for the SKR mini E3 and to a limit to the Creality 3D controller board. But the final wiring is a bit different on the Creality board, so would recommend looking for a custom tutorial video.

Now we need to flash the new firmware with the configuration for BL-touch present. So open up the SKR mini E3 git, download firmware-bltouch-for-z-homing.bin file, rename to firmware.bin and copy to the printers micro-SD card.

I didn"t have the hex nuts, was almost ready to use double-sided exterior tape as a temporary solution, then stumbled upon someone else"s hint, which fit my own need. Appreciate your guide and its pictures. I will go on with the flipping of the wires for the SKR mini e3. If I get stuck or find something else to share, I will come back. Again, thanks.0

Flat-panel displays are thin panels of glass or plastic used for electronically displaying text, images, or video. Liquid crystal displays (LCD), OLED (organic light emitting diode) and microLED displays are not quite the same; since LCD uses a liquid crystal that reacts to an electric current blocking light or allowing it to pass through the panel, whereas OLED/microLED displays consist of electroluminescent organic/inorganic materials that generate light when a current is passed through the material. LCD, OLED and microLED displays are driven using LTPS, IGZO, LTPO, and A-Si TFT transistor technologies as their backplane using ITO to supply current to the transistors and in turn to the liquid crystal or electroluminescent material. Segment and passive OLED and LCD displays do not use a backplane but use indium tin oxide (ITO), a transparent conductive material, to pass current to the electroluminescent material or liquid crystal. In LCDs, there is an even layer of liquid crystal throughout the panel whereas an OLED display has the electroluminescent material only where it is meant to light up. OLEDs, LCDs and microLEDs can be made flexible and transparent, but LCDs require a backlight because they cannot emit light on their own like OLEDs and microLEDs.

Liquid-crystal display (or LCD) is a thin, flat panel used for electronically displaying information such as text, images, and moving pictures. They are usually made of glass but they can also be made out of plastic. Some manufacturers make transparent LCD panels and special sequential color segment LCDs that have higher than usual refresh rates and an RGB backlight. The backlight is synchronized with the display so that the colors will show up as needed. The list of LCD manufacturers:

Organic light emitting diode (or OLED displays) is a thin, flat panel made of glass or plastic used for electronically displaying information such as text, images, and moving pictures. OLED panels can also take the shape of a light panel, where red, green and blue light emitting materials are stacked to create a white light panel. OLED displays can also be made transparent and/or flexible and these transparent panels are available on the market and are widely used in smartphones with under-display optical fingerprint sensors. LCD and OLED displays are available in different shapes, the most prominent of which is a circular display, which is used in smartwatches. The list of OLED display manufacturers:

MicroLED displays is an emerging flat-panel display technology consisting of arrays of microscopic LEDs forming the individual pixel elements. Like OLED, microLED offers infinite contrast ratio, but unlike OLED, microLED is immune to screen burn-in, and consumes less power while having higher light output, as it uses LEDs instead of organic electroluminescent materials, The list of MicroLED display manufacturers:

Sony produces and sells commercial MicroLED displays called CLEDIS (Crystal-LED Integrated Displays, also called Canvas-LED) in small quantities.video walls.

LCDs are made in a glass substrate. For OLED, the substrate can also be plastic. The size of the substrates are specified in generations, with each generation using a larger substrate. For example, a 4th generation substrate is larger in size than a 3rd generation substrate. A larger substrate allows for more panels to be cut from a single substrate, or for larger panels to be made, akin to increasing wafer sizes in the semiconductor industry.

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