Arduino-Development / libraries /TFT /examples /Esplora /EsploraTFTBitmapLogo /EsploraTFTBitmapLogo.ino
| /* | |
| Esplora TFT Bitmap Logos | |
| This example for the Arduino TFT screen is for use | |
| with an Arduino Esplora. | |
| This example reads an image file from a micro-SD card | |
| and draws it on the screen, at random locations. | |
| There is a .bmp file included with this sketch. | |
| - open the sketch folder (Ctrl-K or Cmd-K) | |
| - copy the "arduino.bmp" file to a micro-SD | |
| - put the SD into the SD slot of the Arduino LCD module. | |
| This example code is in the public domain. | |
| Created 19 April 2013 by Enrico Gueli | |
| http://www.arduino.cc/en/Tutorial/EsploraTFTBitmapLogo | |
| */ | |
| // include the necessary libraries | |
| // the Esplora pin connected to the chip select line for SD card | |
| // this variable represents the image to be drawn on screen | |
| PImage logo; | |
| void setup() { | |
| // initialize the GLCD and show a message | |
| // asking the user to open the serial line | |
| EsploraTFT.begin(); | |
| EsploraTFT.background(255, 255, 255); | |
| EsploraTFT.stroke(0, 0, 255); | |
| EsploraTFT.println(); | |
| EsploraTFT.println(F("Arduino LCD Bitmap Example")); | |
| EsploraTFT.stroke(0, 0, 0); | |
| EsploraTFT.println(F("Open serial monitor")); | |
| EsploraTFT.println(F("to run the sketch")); | |
| // initialize the serial port: it will be used to | |
| // print some diagnostic info | |
| Serial.begin(9600); | |
| while (!Serial) { | |
| // wait for serial port to connect. Needed for native USB port only | |
| } | |
| // try to access the SD card. If that fails (e.g. | |
| // no card present), the Esplora's LED will turn red. | |
| Serial.print(F("Initializing SD card...")); | |
| if (!SD.begin(SD_CS)) { | |
| Serial.println(F("failed!")); | |
| Esplora.writeRed(255); | |
| return; | |
| } | |
| Serial.println("OK!"); | |
| // clear the GLCD screen before starting | |
| EsploraTFT.background(255, 255, 255); | |
| // now that the SD card can be access, try to load the | |
| // image file. The Esplora LED will turn green or red if | |
| // the loading went OK or not. | |
| Esplora.writeRGB(0, 0, 0); | |
| logo = EsploraTFT.loadImage("arduino.bmp"); | |
| if (logo.isValid()) { | |
| Esplora.writeGreen(255); | |
| } else { | |
| Esplora.writeRed(255); | |
| } | |
| } | |
| void loop() { | |
| // don't do anything if the image wasn't loaded correctly. | |
| if (logo.isValid() == false) { | |
| return; | |
| } | |
| Serial.println(F("drawing image")); | |
| // get a random location where to draw the image. | |
| // To avoid the image to be draw outside the screen, | |
| // take into account the image size. | |
| int x = random(EsploraTFT.width() - logo.width()); | |
| int y = random(EsploraTFT.height() - logo.height()); | |
| // draw the image to the screen | |
| EsploraTFT.image(logo, x, y); | |
| // wait a little bit before drawing again | |
| delay(1500); | |
| } | |