line(xStart, yStart, 圎nd, yEnd) – draws a line that starts at (xStart, yStart) and ends at (圎nd, yEnd) point(x, y) – display a point at the (x, y) coordinate The TFT library provides useful functions to draw shapes on the display: Here’s your “Hello, World!” text on the 1.8 TFT display. wait 200 miliseconds until change to next color print Hello, World! in the middle of the screen TFTscreen.stroke(redRandom, greenRandom, blueRandom) clear the screen with a black background The following example displays “Hello, World!” in the middle of the screen and changes the font color every 200 miliseconds.Ĭopy the following code to your Arduino IDE and upload it to your Arduino board. 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. You can increase or decrease the number given as argument, to increase or decrease font size.įinally, to draw text on the display you use the following line: TFTscreen.text(" Hello, World!", x, y) To choose font color: TFTscreen.stroke( r, g, b) In which, r, g and b are the RGB values for a given color. To set the background color, use: TFTscreen.background( r, g, b) To write text on the display, you can customize the screen background color, font size and color. Then, you need to define the CS, A0 (or DC) and RST pins: #define cs 10 #define dc 9 #define rst 8Ĭreate an instance of the library called TFTscreen: TFT TFTscreen = TFT(cs, dc, rst) įinally, in the setup(), you need to initialize the library: TFTscreen.begin() Display text We also use the TFT library to write and draw on the display. The TFT display communicates with the Arduino via SPI communication, so you need to include the SPI library on your code. If you’re using another Arduino board, check the Arduino official documentation. Note: different Arduino boards have different SPI pins. The table below shows the 1.8 TFT wiring to Arduino UNO. You can use the preceding links or go directly to /tools to find all the parts for your projects at the best price! You can get the 1.8 TFT display for approximately $3 – check prices on Maker Advisor. To control the display we’ll use the TFT library, which is already included with Arduino IDE 1.0.5 and later. This module uses SPI communication – see the wiring below. The following figure shows the screen front and back view. The display can load images from an SD card – it has an SD card slot at the back. The 1.8 TFT is a colorful display with 128 x 160 color pixels. You’ll learn how to wire the display, write text, draw shapes and display images on the screen. (In the example below we are updating a GT Diesel tuner, but the process is the same for all GT part numbers.In this guide we’re going to show you how you can use the 1.8 TFT display with the Arduino. You should see a screen that shows downloading device binary with a percentage. Once you have the model number you will need to highlight the correct model number in the list by clicking on it, and then you can select download and upgrade. Have done that you will see the following screen: The select device window and then clicking select device. Reading you will want to highlight the device by clicking on it in Gotten the sd card to read in your computer you are now ready to goīack to the Light Duty Update Agent. In the picture below next to System Info is the model number, in this example, it is a 40417. The 5-digit model number can be found on the show settings screen from the main menu. Plugging the GT with the card inserted into the PC with the USB cable can sometimes work, but will transfer files at 1x, so it can be extremely slow and is not recommended unless used as a last resort. USB port on your computer, or try a different card reader. Showing up try inserting the sd reader into a different Make sure that the small metal contacts on theĬhecked all these things if you still do not see the “BDCARD”.The sd card is not being inserted all the way into the card reader.The sd card not being inserted properly.Things that can cause the SD card to not read correctly are: If the card is not reading correctly you will see one that says “Removable Disk”.Once you have that open you will see an option in there labeled “BDCARD” if the card is reading correctly.Left-hand side, and then you will open the option labeled “Devices Or you can type in “File Explorer” into your windows search bar.įile explorer open you want to select the “This PC” tab on the The file explorerĬan be found in your taskbar at the bottom of your screen, Going to your file explorer on your PC to check. Make sure that the computer is reading the card.If your SD card is not showing up in the select device window on the Update Agent or your PC is not reading it correctly, try the following:
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