- #3.2 tft lcd arduino tutorial how to
- #3.2 tft lcd arduino tutorial install
- #3.2 tft lcd arduino tutorial code
#3.2 tft lcd arduino tutorial how to
Next is the void loop() function which I personally now use as a reference for functions and how to use them.
Under the setup() function, we initialize the LCD using the init command and we ensure the LCD display is on landscape using the set rotation function with a value of 1. With that done, we proceed to the void setup() function. It should be noted that to use custom fonts, they must be pre-loaded into the library by editing the User_Setup.h file in the library. Next, we specify the initial color for the fonts to be used. TFT_HX8357_Due tft = TFT_HX8357_Due() // Invoke custom library #define WAIT 2000 // Delay between tests, set to 0 to demo speed, 2000 to see what it does! After this, we include the utft library and invoke the custom library for the for Arduino Due. This speed can be reduced to zero so the demo can play slowly.
#3.2 tft lcd arduino tutorial code
The code starts by setting the speed (the wait variable) at which it runs to 2000. We will attempt to do a brief explanation of the code. With the IDE opened, click on file, select examples, select UTFT then select the Display Demo or the UTFT_Demo_480x320 example.
#3.2 tft lcd arduino tutorial install
Use your favorite library installation method to install the library after downloading and launch an Instance of the Arduino IDE. The libraries are pre-built for each Arduino board so choose the right one that matches the board you are using from the link below.
The wonderful library written by Henning Karlsen can be downloaded from the link below. To go round this hurdle, we will be installing a previous version of the library on the Arduino IDE. Unfortunately, the latest versions of the UTFT library has no support for the HX8357B LCD controller which is used to our 3.2″ TFT display. The UTFT library is a library created to facilitate easy interaction between a microcontroller and several LCD displays. To achieve the goals of this tutorial, we will use a simple sample code attached to the UTFT library. Plug the display into your Arduino Mega or Due as shown in the image below. The display comes in a shield form, which means it can be plugged directly into the Arduino with which it is going to be used, as such, no schematic is needed. The 3.2″ TFT display, as at the time I bought it was listed on the website as a 3″ display but after buying and measuring, the size of the display is 3.2″. These components can each be bought via the links attached. The following components are required to build this project: All these will show how the display could be used for something like an oscilloscope. To demonstrate how the display works, we will use the UTFT LCD library for Arduino to display some images and text on the display including an animated graph. The module can be directly inserted into an Arduino Mega or Due board. The module includes an SD card socket, an SPI FLASH circuit and a 5V-3.3V power and Logic Level conversion circuit which makes it easy to use with any microcontroller that uses either 5v or 3.3v logic voltage level. The display which is based on the HX8357B LCD Controller, supports 16-wire DataBus interface and comes with 262K color at 480 x 320 resolution. For this tutorial, we will use the 3.2″ TFT display from banggood.