kuman 3.5 tft lcd shield library free sample

I bought online this LCD Touchscreen Kuman SC3A-NEW-UK. It uses ILI9486 drivers, but it didn"t include any instructions manual, and kumantech.com seems to be devoid of complete technical documentation about SC3A-NEW-UK model.

Just in case it wasn"t noticable: I am trying to make a "Hello World" for my SC3A-NEW-UK"s LCD Touchscreen from an Arduino UNO board. In other words: just print "Hello World" to see if it works.

To see if I can use it, I tried downloading a whole ZIP from this Github project, and inside the Arduino IDE, I tried adding the downloaded library using the option "Include .ZIP library". If I copy-paste the code example provided within README.md (the following) and compile:

...and I have no idea what this FS library is supposed to be, so I don"t think I can use that Github project at all... I am tempted to assume that Github"s project is dead.

This compiled in Arduino IDE, no problem, but I still don"t know if it will work well with my screen. I am also confused about initialization of the TFT object and how would I have to wire the LCD screen to the Arduino depending on this initialization:

...i mean, my LCD screen has CS and RESET pins, but what is DC supposed to be here? (in this context, I don"t think it stands for "Direct Current"... but there"s no DC pin reference in my LCD screen written "AS IS"... ?? This brings me more confusion...

...specially having in mind that I don"t know how am I supposed to wire the LCD screen to the Arduino yet. It seems the LCD pins have been designed to fit in directly to the Arduino board without thinking too much about it (like the shape is the same), but that would make the screen getting all the Arduino UNO"s pins for itself, so I don"t think so...

...so, powering the screen shouldn"t be a big deal, but, how am I supposed to connect everything else? I am completely misguided about how am I supposed to interact with the screen from Arduino code... what is RS pin for? Should I use 4-bit or 8-bit mode? (I think 4-bit would imply connecting 4 digital pins for the screen, and 8-bit the whole 8 pins from screen to the Arduino UNO board)? Should I use LCD_RD and LCD_WR? Well you have a picture of my confusion.

Even though I know how to control Input/Output in Arduino code to interact with analog/digital input and output pins at will with C++ in Arduino code (but even so, I think I"m still an Arduino n00b), this LCD screen"s physical interface is very confusing to me...

PD: I have read somewhere that this SC3A-NEW-UK Touchscreen is made to shield Arduino MEGA boards (by fitting the PINs directly into it), but mine is an Arduino UNO Board! (perhaps I shouldn"t have bought This LCD model, then?)... but I have sets of wires, pinboards and stuff... I don"t want to give up the idea of harnessing this LCD screen using an Arduino UNO. I don"t care about shielding feature, I just want to wire it and make it work. I will figure out how to shield electronics later on.

Based on VE7JRO"s answer, I managed to map the connections by seeing where the connections would go if I just fit the connections shielding the Arduino UNO, the way VE7JRO suggested:

I put NONE for A5 input, because that pin of LCD screen doesn"t have any name on it. There are another ones without name as well, that I didn"t include in this table. I believe (perhaps I"m wrong believing it, I don"t know) that those pins without name have no use.

I still don"t know much of the details about what pins do what for the screen, but I have read somewhere that LCD_D0 to LCD_D7 are meant to receive digital data in some kind of 8-bit parallel mode. But I also heard that there is a 4-bit mode. If I could use that mode with this screen, I would be able to have 4 free digital pins for anything else...

I tested VE7JRO"s code. LCD Screen did draw the interface as expected. But buttons didn"t respond. I found out the code sample needs further calibration.

There are 22 test sketches that come with the MCUFRIEND_kbv library. One of them scans your display and outputs configuration information (sorry, it"s been a while since I tested my screen). Another sketch will draw little boxes in each corner and sides. This is used to get the x y coordinates of the edges of your particular screen (it might be called TouchScreen_Calibr_native.ino).

The fifth parameter is supposed to be the resistance measured between LCD_D6 and LCD_RS with the screen unplugged. Unfortunately, my multimeter can"t measure it for some reason (I put it in 2000 Ohms mode for reading resistance: I always get "1", the same than when I don"t connect anything... like if multimeter"s contacts aren"t working well, I don"t know)... so I left the default 300 value.

Note: There is a film on the LCD, if there is scratch on the film when you receive the item, pls try to remove the film with your finger nail from the corner of the LCD, thanks.

i had the same issues with this 3,5" TFT LCD and wiring it to an ESP32 and making the TouchScreen work. However i managed to find a solution to the problem. Lets start with the wiring:

Next lets focus on the software side. In bodmers awesome library you have to comment/uncomment the right sections. The User_Setup.h file is pretty straight forward. My display used the ILI9488 processor and is run in 8 Bit parallel mode:

When it came to the touchscreen i faced some difficulties. Since the display with 8 bit there is no dedicated "Touch Pin" like other displays use. I decided to use a different library than @Bodmer (no front, still love you and the library <3). I used the ADAFRUIT Touchscreen library in extend:

In this Arduino touch screen tutorial we will learn how to use TFT LCD Touch Screen with Arduino. You can watch the following video or read the written tutorial below.

As an example I am using a 3.2” TFT Touch Screen in a combination with a TFT LCD Arduino Mega Shield. We need a shield because the TFT Touch screen works at 3.3V and the Arduino Mega outputs are 5 V. For the first example I have the HC-SR04 ultrasonic sensor, then for the second example an RGB LED with three resistors and a push button for the game example. Also I had to make a custom made pin header like this, by soldering pin headers and bend on of them so I could insert them in between the Arduino Board and the TFT Shield.

Here’s the circuit schematic. We will use the GND pin, the digital pins from 8 to 13, as well as the pin number 14. As the 5V pins are already used by the TFT Screen I will use the pin number 13 as VCC, by setting it right away high in the setup section of code.

I will use the UTFT and URTouch libraries made by Henning Karlsen. Here I would like to say thanks to him for the incredible work he has done. The libraries enable really easy use of the TFT Screens, and they work with many different TFT screens sizes, shields and controllers. You can download these libraries from his website, RinkyDinkElectronics.com and also find a lot of demo examples and detailed documentation of how to use them.

After we include the libraries we need to create UTFT and URTouch objects. The parameters of these objects depends on the model of the TFT Screen and Shield and these details can be also found in the documentation of the libraries.

So now I will explain how we can make the home screen of the program. With the setBackColor() function we need to set the background color of the text, black one in our case. Then we need to set the color to white, set the big font and using the print() function, we will print the string “Arduino TFT Tutorial” at the center of the screen and 10 pixels  down the Y – Axis of the screen. Next we will set the color to red and draw the red line below the text. After that we need to set the color back to white, and print the two other strings, “by HowToMechatronics.com” using the small font and “Select Example” using the big font.

Today, you will learn how you can create and use buttons in your Arduino TFT Touchscreen projects.I"m using Kuman"s 2.8" TFT Shield combined with Kuman"s Arduino UNO. Bonus: The TFT Shield from Kuman comes with a free Stylus which you can use for more precise presses!

Clip in the shield onto your Arduino board. Make sure it"s not in the wrong way!You can use the pictures above for reference. Plug in your Arduino board to your PC and hop into the Arduino Software.

I tried it with your sketch, but it did not work firstly. However I fixed some part of the sketch, it worked. "tft.begin(0x9325);" to " tft.begin(0x9341);"0

page1_btn.initButton(&tft, tft.width() / 2. , tft.height() / 2. - (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "SENSOR", 2);

page3_btn.initButton(&tft, tft.width() / 2., tft.height() / 2. + (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "PARAMETER", 2);

tft.drawRoundRect(tft.width() / 2. - 1.5 * btnWidth, tft.height() / 2. - (1.5 * btnHeight + 2 * margin), 2 * btnWidth + btnWidth, 3 * btnHeight + 4 * margin, 10, GREEN);

plus_btn.initButton(&tft, tft.width() / 2. - btnWidth / 2. , 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "+", 5);

minus_btn.initButton(&tft, tft.width() / 2. + btnWidth / 2. + margin, 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "-", 5);

if (bColor != 255) tft.fillRect(x - nbChar * 3 * tsize - marg, y - nbChar * 1 * tsize - marg, nbChar * 6 * tsize + 2 * marg, nbChar * 2 * tsize + 2 * marg, bColor);

page1_btn.initButton(&tft, tft.width() / 2. , tft.height() / 2. - (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "SENSOR", 2);

page3_btn.initButton(&tft, tft.width() / 2., tft.height() / 2. + (1.*btnHeight + margin), 2 * btnWidth, btnHeight, WHITE, GREEN, BLACK, "PARAMETER", 2);

tft.drawRoundRect(tft.width() / 2. - 1.5 * btnWidth, tft.height() / 2. - (1.5 * btnHeight + 2 * margin), 2 * btnWidth + btnWidth, 3 * btnHeight + 4 * margin, 10, GREEN);

plus_btn.initButton(&tft, tft.width() / 2. - btnWidth / 2. , 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "+", 5);

minus_btn.initButton(&tft, tft.width() / 2. + btnWidth / 2. + margin, 60 + 3 * 4 + 6 * 8 + (btnWidth - 30), btnWidth - 20, btnWidth - 30, WHITE, GREEN, BLACK, "-", 5);

if (bColor != 255) tft.fillRect(x - nbChar * 3 * tsize - marg, y - nbChar * 1 * tsize - marg, nbChar * 6 * tsize + 2 * marg, nbChar * 2 * tsize + 2 * marg, bColor);

Kuman 3.5 inch 320*480 Resolution Touch Screen TFT LCD Display With Protective Case + 3 x Heat sinks+ Touch Pen for Raspberry Pi 3 Model B, Pi 2 Model B & Pi Model B+ SC11

@ bossredman- The XPT2046 is actually the touchscreen controller, not the TFT display controller. You say you don"t care about touch. The existing Teensy/Adafruit TFT display library is written for the ILI9341 TFT controller. This controller is capable of 320 X 240 max resolution. Your display is twice this. I strongly suspect it uses a different controller, so the existing library won"t work. That said, there is no reason the Teensy couldn"t drive your display if you can find a suitable driver. I have not personally seen other, higher resolution driver libraries mentioned in this forum, but others may have info that might help in this respect.

There are RA8875 based 5" and 7" TFT displays, and sumotoy has written a library for those. I"ve also used one and wrote my own driver (for ugfx) so that display family might be an option.

@bossredman: Since you are in the UK, you should take a look at the FT800 controller-based displays from FTDI, the UK firm that makes them. They have a very high performance TFT driver/graphics engine and you can get 3.5- 5" displays for less than the combo you listed above. FTDI supplies Arduino drivers for these displays- which I have used with the AVR chips found on Arduino boards in the past.

I took one of my spare FT800 4.3" TFT modules and wired it up to a spare Teensy LC I had on hand. The FTDI demo programs worked fine when compiled for Teensy LC- no changes needed. Should work OK on T3.6 as well. When I get a chance I"ll try it on my Kickstarter T3.5 module- I don"t have the T3.6 though.

I wrote several magazine articles centred around these FTDI FT800 displays a few years back, and I was impressed with them. The library routines are a bit harder to understand than the Teensy ILI9341 library, but this controller is MUCH more powerful.

Downloaded the https://github.com/palmerr23/ILI9486_Teensy_Library version of this library and added to my environment; compiled the example to test it out, and It compiled fine but I am curious as to where the drawCirlce(), drawTriangle() and a few other functions are located? They are not in the .cpp file, not referenced in the .h file yet the code compiles fine. What am I missing here? I don"t see any other included code that account for these routines. These functions are all referenced in the example code but I cannot find the source.

MISO, MOSI and SCLK are necessary for the TFT to work. They are not exclusive of the SD card. The SPI interface is a bus: you connect the same SCK, MISO and MOSI to all the pertinent devices, then each device has its own CS=chip select.

I would like to use a ILI9486 TFT and TP with it. They both work fine with a Mega2560 and when I wire it up as per the declarations in https://github.com/palmerr23/ILI9486_Teensy_Library .h file and run the graphictest program in the examples folder, the screen lights up, but doesn"t reset or show any data. I"m wiring as follows;

As Kurt says, it"s important to know exactly what TFT hardware you have, and particularly if you have any other hardware or (particularly) SPI-related libraries used. Uninitialised SPI hardware can sometimes transmit on the bus, if the CS pin hasn"t been intentionally driven HIGH.

Turns out the board is SPIO for touchscreen and parallel for LCD. My mistake. I bought it on the basis it was SPIO for both. As a shield, it just plugs into a UNO/Mega. It"s only by going via a breakout board and wiring every pin and seeing when it breaks, I was able to confirm that the LCD is using the parallel interface.

Might try using the breakout board to wire the parallel interface to Teensy and test that or more likely, I"ll use this as an excuse to buy a larger (7") TFT which is definitely SPIO :-)

https://www.ebay.com/itm/3-5inch-TFT-SPI-Serial-LCD-Screen-Module-480x320-ILI9488-w-Touch-Support-65K/164144628286?hash=item2637c8423e:g:BAgAAOSwWG5egw0 0

Kuman 3.5 inch 320*480 Resolution Touch Screen TFT LCD Display With Protective Case + 3 x Heat sinks+ Touch Pen for Raspberry Pi 3 Model B, Pi 2 Model B & Pi Model B+ SC11

Is it this one: http://www.kumantech.com/kuman-35-inch-tft-lcd-display-480x320-rgb-pixels-touch-screen-monitor-for-raspberry-pi-3-2-model-b-b-a-a-module-spi-interface-with-touch-pen-sc06_p0014.html

Is it this one: http://www.kumantech.com/kuman-35-inch-tft-lcd-display-480x320-rgb-pixels-touch-screen-monitor-for-raspberry-pi-3-2-model-b-b-a-a-module-spi-interface-with-touch-pen-sc06_p0014.html

Yesterday, I wired the waveshare 4inch tft touch screen to teensy 4.1. One thing I had to change was the spi config on the display board. There are three switches to select the six pin spi connector or the outboard pins for spi.

Yesterday, I wired the waveshare 4inch tft touch screen to teensy 4.1. One thing I had to change was the spi config on the display board. There are three switches to select the six pin spi connector or the outboard pins for spi.

In cases like this it really helps others to help you, when we have additional information. Things like what display is this. I suppose we could do a search to see what boards waveshare produces that happens to be 4". What library are you using?

Looks like you have some stuff running. Not sure if we have adapted some of our other libraries like the ILI9488_t3 library to work with it or not... I know some have done with either this one or ILI9481_t3... library

Displays are one of the best ways to provide feedback to users of a particular device or project and often the bigger the display, the better. For today’s tutorial, we will look on how to use the relatively big, low cost, ILI9481 based, 3.5″ Color TFT display with Arduino.

This 3.5″ color TFT display as mentioned above, is based on the ILI9481 TFT display driver. The module offers a resolution of 480×320 pixels and comes with an SD card slot through which an SD card loaded with graphics and UI can be attached to the display. The module is also pre-soldered with pins for easy mount (like a shield) on either of the Arduino Mega and Uno, which is nice since there are not many big TFT displays that work with the Arduino Uno.

One of the good things about this module is the ease with which it can be connected to either of the Arduino Mega or Uno. For this tutorial, we will use the Arduino Uno, since the module comes as a shield with pins soldered to match the Uno’s pinout. All we need to do is snap it onto the top of the Arduino Uno as shown in the image below, thus no wiring required.

To easily write code to use this display, we will use the GFX and TFT LCD libraries from “Adafruit” which can be downloaded here. With the library installed we can easily navigate through the examples that come with it and upload them to our setup to see the display in action. By studying these examples, one could easily learn how to use this display. However, I have compiled some of the most important functions for the display of text and graphics into an Arduino sketch for the sake of this tutorial. The complete sketch is attached in a zip file under the download section of this tutorial.

As usual, we will do a quick run through of the code and we start by including the libraries which we will use for the project, in this case, the Adafruit GFX and TFT LCD libraries.

With this done, the Void Setup() function is next. We start the function by issuing atft.reset() command to reset the LCD to default configurations. Next, we specify the type of the LCD we are using via the LCD.begin function and set the rotation of the TFT as desired. We proceed to fill the screen with different colors and display different kind of text using diverse color (via the tft.SetTextColor() function) and font size (via the tft.setTextSize() function).

The Adafruit library helps reduce the amount of work one needs to do while developing the code for this display, leaving the quality of the user interface to the limitations of the creativity and imagination of the person writing the code.

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A beautiful 3.5” touchscreen display, based on ESP32-WROVER, with a built-in 2M pixel OV2640 camera, makes it an ever perfect platform for your ESP32 projects.

Makerfabs ESP32 3.5” Touch with camera is absolutely open for makers, and besides, Makerfabs provide plenty of Demos to help the users on the usage. Have a try at this fantastic display in your next ESP32 project!~