tft lcd display kmr-1.8 supplier

Recently, I had the idea to make a digital picture frame—one of these kinds which load images from SD cards and show each image for some time. I was remembering myself that I already own a small TFT display, the KMR-1.8 SPI, that works out of the box with an Arduino Uno. When I digged up my KMR-1.8 SPI, I realized that it has also an in-built SD card reader. Moreover, I looked up the Internet and found ready-to-use libraries for the in-built SD card reader as well as showing images on the TFT display. For these reasons, I thought making such an digital picture frame will turn out very easy.

When I started to implement my first lines of codes and started to connect my Arduino Uno to the KMR-1.8 SPI, I ran into two major problems. First, the colors of my image file did not match to the colors displayed by the KMR-1.8 (red and blue were interchanged). Second, my first prototypes stopped to work after about 5 minutes. The application started to freeze and showed the same image forever instead of displaying the next image after a chosen time.

There exists various versions of so-called “1.8 TFT displays” from different manufacturers. Not all of them are 100% compatible to each other. Therefore, if you own a TFT display and want to use my tutorial to make it work, please check if your TFT display really matches the version I used in this tutorial:

The source code relies on three header files (and libraries): SPI.h (Link), SD.h (Link) and TFT.h (Link). Please make sure that all of them are correctly installed before trying out my source code (In Arduino IDE: Tools -> Manage Libraries…).

I overcame the first problem by not using the default initialization method (“TFTscreen.begin();”) of the TFT library. Instead, I looked up whats inside the “begin”-method. I found a method called “initR” which has a parameter that allows to perform the initialization for a specific chip. Here, the parameter value “INITR_BLACKTAB” worked for me as the colors were then shown correctly. In addition, I call the method “setRotation” with parameter value “1” in order to be conform to the default initialization method. In the end, the code for the setting up the TFT library object looks like this:// ...

The code looks for image files (*.BMP) on the SD card and shows each image for 60 seconds. You can change the display time by setting “DELAY_IMAGE_SWAP” to a new value.

Specification:Driver IC: ST7735RResolution: 128 x 160 pixelsFeatures:- Can help you to get rid of the Arduino serial monitor.- Some tests and provide UTFT library, AdaFruit Library and instruction on DropBox.- Tested with Latest Arduino 1.6.5.IO interface:1. RESET --directly to the microcontroller IO2. CS --directly to the microcontroller IO3. A0 --IO control registers select4. SDA --IO control data transmission5. SCL --IO control SPI bus6. BL--High Level 3.3V backlight onNote:Please contact us for documents and driver if you need. Please noted this LCD is 3.3V, which can not receive 5V signals from the Arduino, so please use a 1k series resistors between GPIO lines on a 5V arduino and this LCD, power this LCD with 5V but drive it with "level shifted resistor" GPIO lines.Besides, you could use mcifriend 2.8 inch TFT LCD library to get it to work, it will work fine with the Mega or Uno.

I needed to install this library from Bodmer; then edit the User_Setup.h file ( in sketchbook/libraries/TFT_ESPI ) to match my display and the connections used.

This User_Setup.h works fine for the ESP32; except that in the UTFT_DEMO_FAST Example the final screen (orange rectangle on blue background) no text was displayed.

TFT LCD module has always been one of the hot products in DIY industry and LCD is basically the necessary products during all projects, at the same time, serial port modules are also the popular ones, because it takes few IO and the usage is simple. This section of the 1.8-inch TFT LCD serial SPI integrated features of compact, SPI interface.

Features for the 1.8 Inch LCD TFT  Display 128X160 SPI Serial Port With SD Card Holder is the best way to add a small, colourful, and bright display to any project. Since the display uses 4-wire SPI to communicate and has its pixel-addressable frame buffer, you can use it with every kind of microcontroller.

Even a tiny one with low memory and few pins available! The 1.8″ display has 128×160 color pixels. Unlike the low-cost Nokia 6110 and similar LCDs, which are CSTN type and thus have poor colour and slow refresh, this display is a true TFT! The TFT driver (ST7735R) can display full 18-bit color (262,144 shades!). And the 4.6 cm (1.8 “) SPI 128×160 TFT LCD Display Module will always come with the same driver chip, so there are no worries that your code will not work from one to the other. The breakout has the TFT display soldered on (it uses a delicate flex-circuit connector), an ultra-low-dropout 3.3V regulator, and a 3/5V level shifter to use it with 3.3V or 5V power and logic. It features a microSD card holder so you can quickly load full-colour bitmaps from a FAT16/FAT32 formatted microSD card

Only an small advice for those who want to rotate to rotate the text you have to use the instruction tft.setRotation (2); the number can be 0,1,2,3

//#define ILI9488_DRIVER // WARNING: Do not connect ILI9488 display SDO to MISO if other devices share the SPI bus (TFT SDO does NOT tristate when CS is high)

An 1.8" 128 x 160 TFT LCD can be purchased for around $3. The one that I got has the marking of "KMR-1.8 SPI". It claims to be ST7735R based. ST7735R is a 262K 18-bit color TFT controller/driver by Sitronix. ST7735R is a chip with large aspect ratio (10 x 0.7 mm); it has 759 pads (including 396 source and 162 gate driver output pins) and supports a number of interfaces, parallel and serial.

LED+, SD_CS, MOSI and SCK have 4.7-Ohm series resistors. LED- is shorted to GND. The display is advertised to work with Arduino, but it appears to take only 3V input.

I used 1600-Ohm resistors in series for 5V to 3V conversion. I wonder if that might cause some problem. The display input pins do not cause the 5V signal level to drop as I expect with ESD protection diodes. Could the input be 5V tolerant? The I/O voltage is specified as 1.65 to 3.7V according to the data sheet and the operating voltage is 2.3 to 4.8V. 5V would be stressing it. I power the Arduino nano with the USB, so the actual voltage is 4.7V (after the diode). It is possible that the 3V from the regulator is not actually used by the display, but only for the SD card.

People have reported that the display can also run on Orange Pi. The device is supported by notro"s fbtft, with built-in support for Adafruit 1.8". The wiring is as follows,

The data sheet specifies the min serial clock cycle time is 66ns for write and 150ns for read. Even for just writing, the max clock frequency is 15MHz. Even though the driver seemed to load correctly, I was unable to display anything. Lowering the SPI clock rate did not help.

I powered both the arduino and the display with 3.3V. The hardware SPI worked. (I mistakenly used D12 as DC, which compounded the problem. D12 is MISO.) Even the software SPI behaved a little better (without the some flicking). So the hardware is fine running 3.3V (drawing about 55mA).

The next step is to run X windows on it. I created X11 config file and run startx as the second display. The X Window did run on the display; but the X Windows on the HDMI display disappears.

TFT displays are full color LCDs providing bright, vivid colors with the ability to show quick animations, complex graphics, and custom fonts with different touchscreen options. Available in industry standard sizes and resolutions. These displays come as standard, premium MVA, sunlight readable, or IPS display types with a variety of interface options including HDMI, SPI and LVDS. Our line of TFT modules include a custom PCB that support HDMI interface, audio support or HMI solutions with on-board FTDI Embedded Video Engine (EVE2).

@david_prentice: I meant Himax, well spotted! I remember seeing a 1.8" display with a HX---- driver advertised, but I am not sure where I saw it. Yes you are right, ILI9163/S6D02A1/ST7735 are all options often advertised for 1.8" displays.

Interestingly it reports my display as having an ILI9163 but I am using initialisation code from this library for a S6D02A1 and it works OK but that may just be by luck and a degree of initialisation address compatibility.

Tags: Arduino Uno, Arduino,1.8" SPI TFT LCD, 128x160 module, SD card,ST7735R,ST7735S, Adafruit,Adafruit_ST7735, Adafruit_GFX,ST7735B, UTFT,flickering streaks ,мерцающие полосы, вертикальные горизонтальные помехи при обновлении картинки с SD карты,HY-1.8 SPI, S6D02A1,Adafruit_QDTech, KMR-1.8 SPI,TFT_ILI9163, Arduino Esplora,SainSmart

This lovely little display breakout is the best way to add a small, colorful and bright display to any project. Since the display uses 4-wire SPI to communicate and has its own pixel-addressable frame buffer, it can be used with every kind of microcontroller. Even a very small one with low memory and few pins available.

The 1.8" display has 128x160 color pixels. Unlike the low cost "Nokia 6110" and similar LCD displays, which are CSTN type and thus have poor color and slow refresh, this display is a true TFT! The TFT driver (ST7735R, ST7735S, ST7735B) can display full 18-bit color (262K shades). And the LCD will always come with the same driver chip so there"s no worries that your code will not work from one to the other.

The breakout has the TFT display soldered on (it uses a delicate flex-circuit connector) as well as a ultra-low-dropout 3.3V regulator and a 3/5V level shifter so you can use it with 3.3V or 5V power and logic. We also had a little space so we placed a microSD card holder so you can easily load full color bitmaps from a FAT16/FAT32 formatted microSD card.

This color display uses SPI to receive image data. That means you need at least 4 pins - CLOCK, DATA IN, TFT CS and D/C. If you"d like to have SD card usage too, add another 2 pins - DATA OUT and card CS.

MISO(or SD_MISOorSDO) (Master In Slave Out) - this is the SPI Master In Slave Out pin, its used for the SD card. It isn"t used for the TFT display which is write-only

MOSI (or DIN or SD_MOSIorSDA) (Master Out Slave In) - this is the SPI Master Out Slave In pin, it is used to send data from the microcontroller to the SD card and/or TFT

TFT_CS (Chip Select or Slave Select) - the pin on each device that the master can use to enable and disable specific devices. This is the TFT SPI chip select pin

RST (or RESETorRES) - this is the TFT reset pin. Connect to ground to reset the TFT! Its best to have this pin controlled by the library so the display is reset cleanly, but you can also connect it to the Arduino Reset pin, which works for most cases.

There are two ways to wire up these displays - one is a more flexible method Software SPI (you can use any pins on the Arduino) and the other Hardware SPI is much faster (4-8x faster, but you are required to use the hardware SPI pins)

You have got one of these really cheap 1.8" TFT SPI LCD module. Great value for the price. You have got it up and running in no time. Just one little problem... flickering streaks - horizontal, vertical or combined. You did a search on the Web and can"t find right answer. We will help you. It"s very easy.

The root cause of what often described as flicker, to me it is more like flickering lines when loading data into display. Actualy, if you have more than one device on SPI - any SPI activity will cause that.

Most Arduino"s running at 5V. Present display powered internally, including IOs, at 3.3v. Atmel"s IOs drive current is pretty high. Display"s inputs have clamps to VCC. Most signals idle high. When signals are 5V - current from signals through clamp diodes back feeding VCC and actually raising voltage on 3.3V regulator on display board to ~3.9V. During intense communications this voltage drops a bit and display"s analog circuitry thrown a out of wack causing streaks on display.

What I did, is to insert resistive dividers into each signal from Atmel to TFT. It consists of one in series of 180 Ohm and one 330 Ohm parallel to the inputs to ground, for each input.

Insert resistive dividers into each signal from Arduino board to TFT display. It consists of one in series of 180 Ohm and one 330 Ohm parallel to the inputs to ground, for each input.

Convert your Arduino board and TFT display to 3.3V. Many ways to do that for Arduino. For example, on display board you have to put solder blob across JP1.

3.TFTBitmapLogo sketch. Displays your picture.The display can load images bigger or smaller than the display size (160 x 128 px), but for better results, edit your image size to 160 x 128 px.The image should be in .bmp format. To do that, you can use a photo editing software and save the image as.bmpformat. If you want to later use your own image, use an image editing tool and crop your image to no larger than 128 pixels high and 160 pixels wide. Save it as a 24-bit color BMP file - it must be 24-bit color format to work, even if it was originally a 16-bit color image - becaue of the way BMPs are stored and displayed!You can download example here.

6.spitftbitmap sketch. The display can load images bigger or smaller than the display size (160 x 128 px), but for better results, edit your image size to 160 x 128 px.The image should be in .bmp format. To do that, you can use a photo editing software and save the image as.bmpformat. If you want to later use your own image, use an image editing tool and crop your image to no larger than 160 pixels high and 128 pixels wide. Save it as a 24-bit color BMP file - it must be 24-bit color format to work, even if it was originally a 16-bit color image - becaue of the way BMPs are stored and displayed!You can download example here.

7. ST7735_SD sketch. Scrolls you pictures like Photo frame. The display can load images bigger or smaller than the display size (160 x 128 px), but for better results, edit your image size to 160 x 128 px.The image should be in .bmp format. To do that, you can use a photo editing software and save the image as.bmpformat. If you want to later use your own image, use an image editing tool and crop your image to no larger than 160 pixels high and 128 pixels wide. Save it as a 24-bit color BMP file - it must be 24-bit color format to work, even if it was originally a 16-bit color image - becaue of the way BMPs are stored and displayed! You can change the rotation of pictures to landscape or vertical. You can find examples of pictures used here.

11. TFT_graphicstest_small sketch for TFT_ILI9163 library. Supports ILI9163 chip. Do not forget to check the User_Setup.h file configuration in library folder.

TFT_ILI9163library. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can read about it here. Supports ILI9163 chip

TFT_S6D02A1ibrary. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can read about it here. Supports S6D02A1 chip.

UTFTlibrary. Download, unzip and add to libraries in our PC, for example C:\Users\toshiba\Documents\Arduino\libraries. This link you can find in Preferences of Adruino IDE program which installed in your PC. You can read about it here. SD card is not supported.