4.3 tft lcd arduino free sample

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.

In order the code to work and compile you will have to include an addition “.c” file in the same directory with the Arduino sketch. This file is for the third game example and it’s a bitmap of the bird. For more details how this part of the code work  you can check my particular tutorial. Here you can download that file:

4.3 tft lcd arduino free sample

FocusLCDs.com sent me a free sample of a 4x3” TFT LCD (P/N: E43RG34827LW2M300-R) to try out. This is a color active matrix TFT (Thin Film Transistor) LCD (liquid crystal display) that uses amorphous silicon TFT as a switching device. This model is composed of a Transmissive type TFT-LCD Panel, driver circuit, backlight unit. The resolution of a 4.3” TFT-LCD contains 480x272 pixels, and can display up to 16.7M colors.

For this project, you would need the RA8875 driver board (available at AdaFruit for US$35) to interface the TFT display to the Arduino. It comes with a header which you can solder on as needed.

4.3 tft lcd arduino free sample

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (4.3" diagonal) bright (8 white-LED backlight) and colorfu 480x272 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel attached on screen by default.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (UNO/Due/Mega 2560).

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

If you"ve had a lot of Arduino DUEs go through your hands (or if you are just unlucky), chances are you’ve come across at least one that does not start-up properly.The symptom is simple: you power up the Arduino but it doesn’t appear to “boot”. Your code simply doesn"t start running.You might have noticed that resetting the board (by pressing the reset button) causes the board to start-up normally.The fix is simple,here is the solution.

4.3 tft lcd arduino free sample

Spice up your Arduino project with a beautiful large touchscreen display shield with built in microSD card connection. This TFT display is big (4.3" diagonal) bright (8 white-LED backlight) and colorfu 480x272 pixels with individual pixel control. As a bonus, this display has a optional resistive touch panel with controller XPT2046 attached by default and a optional capacitive touch panel with controller FT5206 attached by default, so you can detect finger presses anywhere on the screen and doesn"t require pressing down on the screen with a stylus and has nice glossy glass cover.

The shield is fully assembled, tested and ready to go. No wiring, no soldering! Simply plug it in and load up our library - you"ll have it running in under 10 minutes! Works best with any classic Arduino (UNO/Due/Mega 2560).

Of course, we wouldn"t just leave you with a datasheet and a "good luck!" - we"ve written a full open source graphics library at the bottom of this page that can draw pixels, lines, rectangles, circles and text. We also have a touch screen library that detects x,y and z (pressure) and example code to demonstrate all of it. The code is written for Arduino but can be easily ported to your favorite microcontroller!

If you"ve had a lot of Arduino DUEs go through your hands (or if you are just unlucky), chances are you’ve come across at least one that does not start-up properly.The symptom is simple: you power up the Arduino but it doesn’t appear to “boot”. Your code simply doesn"t start running.You might have noticed that resetting the board (by pressing the reset button) causes the board to start-up normally.The fix is simple,here is the solution.

4.3 tft lcd arduino free sample

Wondering if I tried for something a bit to challenging, ok so was wondering about declaring the pins, and if that is something normally done in the utft.h and utouch.h files or if I need to declare them elsewhere, otherwise if checked the wiring against what the doc is sayin to do. Heres the header.

4.3 tft lcd arduino free sample

I wanted to share with you my experiences with the Waveshare 4.3"" ePaper display - and how to connect it to an ESP8266 Arduino. I had a simple project in mind that should do the following:

There are only a few ePaper displays out there that are ready to be interfaced with an Arduino controller. The by far cheapest option with a medium sized display and good resolution is the Waveshare 4.3"" ePaper display. It has a 800x600 resolution (230dpi) and can display up to 4 colors: light gray, medium gray, black and white. I was able to get it for around 50€.

For the wifi enabled Arduino board, I went with the Adafruit Feather Huzzah with integrated ESP8266. This board is compatible with the Arduino IDE, has a wifi chip integrated and is well documented. I got it for around 15€.

Both the display and the Arduino board can be operated at 3V, so I simply purchased a 1400mAh lipo battery for 6€ to power both of them. I"ll probably need to upgrade the battery, but that"s the one I had available.

The wiring is pretty straight forward. I found an example on the Waveshare Wiki on how to connect to an Arduino Uno and adapted it to the Adafruit Huzzah:

Remark: We are also connecting the RST Pin to Pin 16 on the Arduino in order to wake it from deep sleep. I found out about this on the Adafruit Product page.

Because the Arduino board is not capable of rendering a full 800x600 4 bit image (remember, the display has 4 colors) I"m doing the rendering on my Webserver. If you are interested in this part I can share more information and even my code with you. For this post let"s just say I am pulling weather information from forecast.io, display it in a HTML layout and render it to a png picture with PhantomJS.

PNG files are super small but also compressed. My Arduino board does not have the power to decompress a png so we"ll need something simpler: the PBM format. You can look up the format on Wikipedia but for a black/white Image it"s really simple. Each pixel is represented by one bit that can either be 0 or 1. 8 pixel get packed into one byte of data. That"s 800 x 600 x 1bit / 8 = 60kbyte per image. If we wanted to use the four colors the display can handle this would be 4x the data, so 240kb. Nothing a good wifi couldn"t handle but as it turns out more data than you can easily transfer over UART. We"ll cover that in a moment.

The Arduino now only needs to connect to the internet every 30 minutes or so and download the PBM. Of course the Arduino does not have enough storage to save the image for later processing. Instead we are going to stream it from the internet byte by byte and create draw commands for the display while we do that.

For a full black image we would have to call 800 x 600 draw_pixel commands, each taking 13byte traveling over serial from the Arduino to the display. That"s a whopping 6mb of data. The UART communication of our Arduino and display run at 115200baud (bits per second) so around 14kb/s. At this speed it would take 440 seconds to get the image across.

A checkerboard pattern would ruin our benefits, but in a real life scenario this is going to save our ass. The image you see above takes around 10 seconds to travel from the Arduino to the display. That is still a lot but since we"re only updating the screen every 30 minutes it"s not a big deal.

Speaking of the SD card, the Waveshare display does have a SD card reader to store bmp images. Maybe I can find a way to share the SD card reader between the Arduino and the display so I can save the image from the internet to the SD card and then simply tell the display to show the image when it has finished downloading.

4.3 tft lcd arduino free sample

The arduino due is an excellent board, however very few libraries are really optimized to get the best out of it. The best SPI display would be the 3.2" ILI9341 using the ILI9341_due library.

Larger displays require extra power to properly handle the backlight. This aspect is vital to ensure the stability of the TFT on the arduino due. Another aspect is the accessibility to the pins of the MCU to connect other devices. The shield_TFT covers all and limits their use.

4.3 tft lcd arduino free sample

ER-TFTM043-4 is 4.3" lcd touch screen module display tft with ssd1963 controller board, mcu 6800,8080 parallel interface,micro sd card slot,font,flash chip.

ER-TFTM043-4-4124 is 4.3 inch tft lcd display with SSD1963 controller board, arduino shield,examples,library.Optional touch panel,arduino mega2560.due board.

I saw from the schematics that there seems to be no hardware on the shield that is except pin adjustment to fit into arduino board, SD, flash and Font chips which I don"t have to use.

4.3 tft lcd arduino free sample

graphics controller IC for three in one operation (display, audio and touch) and its FT232R USB UART interface IC for MCU programming and communications, controlled from an inbuilt ATMEGA328P microcontroller operating at 5V/16MHz. Programming and configuration is easily achieved via the Arduino IDE, using a pre-programmed Arduino-compatible bootloader.

The development system offers a hi-quality system with an elegantly designed, precision fit bezel that provides a resistive touch panel sensor and component board in a rugged, plastic enclosure. Offered in black (-BK) colours, the device provides the engineer a low priced option which can shorten development time while enabling a production finished look for 3.5", 4.3" or 5" colour TFT display solutions.

An abundance of enhanced features are included in the "Plus" module: a backlit LED driver, inbuilt audio amplifier and micro-speaker, Real Time Clock (RTC) with battery backup, on-board 3.3v/5v level shifters, e-Flash IC build option, and a Micro-SD Card socket for application store plus 4GB SD card pre-loaded with 11 interactive application demonstrations and one library of free running apps, showcasing just a few examples of what this innovative device, designed primarily for industrial and commercial purpose, could be used for. The Arduino-compatible display system development platforms run off a standard 5V,delivered via a micro-USB or an auxiliary power connector. Furthermore, Micro-MaTch miniature connectors are provided to further extend functionality, and plug in card connectors are available to expand the IO capability to include GPIO, RS232, RS485,

4.3 tft lcd arduino free sample

Adding a display to your Arduino can serve many purposes. Since a common use for microcontrollers is reading data from sensors, a display allows you to see this data in real-time without needing to use the serial monitor within the Arduino IDE. It also allows you to give your projects a personal touch with text, images, or even interactivity through a touch screen.

Transparent Organic Light Emitting Diode (TOLED) is a type of LED that, as you can guess, has a transparent screen. It builds on the now common OLED screens found in smartphones and TVs, but with a transparent display, offers up some new possibilities for Arduino screens.

The liquid crystal display (LCD) is the most common display to find in DIY projects and home appliances alike. This is no surprise as they are simple to operate, low-powered, and incredibly cheap.

This type of display can vary in design. Some are larger, with more character spaces and rows; some come with a backlight. Most attach directly to the board through 8 or 12 connections to the Arduino pins, making them incompatible with boards with fewer pins available. In this instance, buy a screen with an I2C adapter, allowing control using only four pins.

The screens are capable of a large variety of preset characters which cover most use cases in a variety of languages. You can control your LCD using the Liquid Crystal Library provided by Arduino. The display() and noDisplay() methods write to the LCD, as shown in the official tutorial on the Arduino website.

These simple boards are made up of 7 LEDs (8 if you include the dot), and work much like normal LEDs with a common Anode or Cathode connection. This allows them to take one connection to V+ (or GND for common cathode) and be controlled from the pins of your Arduino. By combining these pins in code, you can create numbers and several letters, along with more abstract designs—anything you can dream up using the segments available!

These tiny LCD screens are monochrome and have a screen size of 84 x 48 pixels, but don"t let that fool you. Coming in at around $2 on AliExpress, these displays are incredibly cheap and usually come with a backlight as standard.

They connect to your Arduino using I2C, meaning that alongside the V+ and GND pins, only two further pins are required to communicate with the screen. With various sizes and full color options available, these displays are incredibly versatile.

Thin-film-transistor liquid-crystal displays (TFT LCDs) are in many ways another step up in quality when it comes to options for adding a screen to your Arduino. Available with or without touchscreen functionality, they also add the ability to load bitmap files from an on-board microSD card slot.

Arduino have an official guide for setting up their non-touchscreen TFT LCD screen. For a video tutorial teaching you the basics of setting up the touchscreen version, YouTuber educ8s.tv has you covered:

This article has covered most options available for Arduino displays, though there are definitely more weird and wonderful ways to add feedback to your DIY devices.

Now that you have an idea of what is out there, why not incorporate a screen into your DIY smart home setup? If retro gaming is more your thing, why not create some retro games on Arduino?