on 1.8 spi tft display 160x128 cad factory

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In this guide we’re going to show you how you can use the 1.8 TFT display with the Arduino. You’ll learn how to wire the display, write text, draw shapes and display images on the screen.

The 1.8 TFT is a colorful display with 128 x 160 color pixels. The display can load images from an SD card – it has an SD card slot at the back. The following figure shows the screen front and back view.

This module uses SPI communication – see the wiring below . To control the display we’ll use the TFT library, which is already included with Arduino IDE 1.0.5 and later.

The TFT display communicates with the Arduino via SPI communication, so you need to include the SPI library on your code. We also use the TFT library to write and draw on the display.

In which “Hello, World!” is the text you want to display and the (x, y) coordinate is the location where you want to start display text on the screen.

The 1.8 TFT display can load images from the SD card. To read from the SD card you use the SD library, already included in the Arduino IDE software. Follow the next steps to display an image on the display:

Note: some people find issues with this display when trying to read from the SD card. We don’t know why that happens. In fact, we tested a couple of times and it worked well, and then, when we were about to record to show you the final result, the display didn’t recognized the SD card anymore – we’re not sure if it’s a problem with the SD card holder that doesn’t establish a proper connection with the SD card. However, we are sure these instructions work, because we’ve tested them.

In this guide we’ve shown you how to use the 1.8 TFT display with the Arduino: display text, draw shapes and display images. You can easily add a nice visual interface to your projects using this display.

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Just tested the 2.2″ version. Easiest way to control it from an Arduino is by using the Adafruit ILI9340 library. Made a video of the example sketch that comes with the library: http://www.youtube.com/watch?v=bVzZ6PWFbGE

The description says you can use 5V for VCC. That’s wrong. By using 5V the module will get too hot and will not work. Use 3.3V and the module will work. You can use a voltage divider for your 5V Arduino.

Thanks for the feedback, I have tested it on 5V, it seems no problem for testing, for the LED backlight it has to be 3V3, or 5V with 10K resistor, for the VCC, not sure which have to be used. It seems the factory provided info it not fully promising.

The 2.2″ version is perfect for displaying complex information due to the 320×240 pixel area. Power consumption is reasonable. Be aware of the 3.3V levels since 5 volts will destroy your display (sooner or later). Most ARM boards will come with 3.3V levels anyway and even Atmel ATmega will work on 3.3 volts (but with lower frequency)

nice unit. got the 2.2″ version for my signal generator project (based on the AD9850 module i got from here also). clean and clear, very happy with it.. got it working with a couple of different libraries, mainly Adafruit and UTFT.

2.2” – Nice colors, easy integration with Arduino Uno and Teensy++2.0 . Only 3 stars because of the limited angle of view and issues withh the edge most lines.

2.2” display – Nice colors, easy integration with Arduino Uno and Teensy++2.0 . Only 3 stars because of the limited angle of view and issues with the edge most lines.

Note: ILI9163C Datasheets improperly (not traditional) refer to SPI as a Serial Interface. Please see timing diagram in 6.2.1 called "3-line Serial Interface Protocol"

The DT018ATFT does not support 4-Wire SPI (also known as "4-line Serial Interface Protocol", 8-bit data, which includes a separate D/C signal line). DT018ATFT does not support this since the signal in ILI9163C datasheet called "SPI4" is hard coded to 0. However, a custom version of the FPC can be tooled to expose the proper 4-Wire SPI signals - please contact us for more details.

The provided display driver example code is designed to work with Microchip, however it is generic enough to work with other micro-controllers. The code includes display reset sequence, initialization and example PutPixel() function.

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.

I did some research on the Internet and I found out that many people ran into similar problems. The second problem seemed to be caused by some memory leaks in the code. Nevertheless, I did not came across any example code that worked out of the box for my setup. Therefore, I want to share how I made it work.

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…).

In the introduction of this blog post, I mentioned that I came across two major problems: the colors red and blue were interchanged and my early Arduino programs started to freeze after some time. Luckily, I was able to fix all issues. The following source code works perfect on my setup. My “digital picture frame” does not require to be restarted after some time (my long-term test lasted about two weeks—and no restart was necessary).

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:// ...

I solved the second problem (application freezes after some time) by avoiding any possible memory leak, i.e. to “free” every bit of memory that was reserved before as soon as it is not needed anymore. Therefore, you will find a lot of “close”-method calls as well as some weird string handling. When I wrote the code, I thought I could simplify a few things. However, the memory leak problems came back. So, the code might look weird but it works :)

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.

Important Note: The image files on the SD card must be stored as BMP with a resolution of 160x128 pixels (width x height). Moreover, long file names and special characters must be avoided.

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).