411 lines
11 KiB
Arduino
411 lines
11 KiB
Arduino
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/**************************************************************************
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This is an example for our Monochrome OLEDs based on SSD1306 drivers
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Pick one up today in the adafruit shop!
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------> http://www.adafruit.com/category/63_98
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This example is for a 128x32 pixel display using I2C to communicate
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3 pins are required to interface (two I2C and one reset).
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Adafruit invests time and resources providing this open
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source code, please support Adafruit and open-source
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hardware by purchasing products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries,
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with contributions from the open source community.
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BSD license, check license.txt for more information
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All text above, and the splash screen below must be
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included in any redistribution.
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**************************************************************************/
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#include <SPI.h>
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#include <Wire.h>
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#include <Adafruit_GFX.h>
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#include <Adafruit_SSD1306.h>
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#define SCREEN_WIDTH 128 // OLED display width, in pixels
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#define SCREEN_HEIGHT 32 // OLED display height, in pixels
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// Declaration for an SSD1306 display connected to I2C (SDA, SCL pins)
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#define OLED_RESET 4 // Reset pin # (or -1 if sharing Arduino reset pin)
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Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);
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#define NUMFLAKES 10 // Number of snowflakes in the animation example
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#define LOGO_HEIGHT 16
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#define LOGO_WIDTH 16
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static const unsigned char PROGMEM logo_bmp[] =
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{ B00000000, B11000000,
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B00000001, B11000000,
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B00000001, B11000000,
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B00000011, B11100000,
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B11110011, B11100000,
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B11111110, B11111000,
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B01111110, B11111111,
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B00110011, B10011111,
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B00011111, B11111100,
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B00001101, B01110000,
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B00011011, B10100000,
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B00111111, B11100000,
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B00111111, B11110000,
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B01111100, B11110000,
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B01110000, B01110000,
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B00000000, B00110000 };
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void setup() {
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Serial.begin(9600);
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// SSD1306_SWITCHCAPVCC = generate display voltage from 3.3V internally
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if(!display.begin(SSD1306_SWITCHCAPVCC, 0x3C)) { // Address 0x3C for 128x32
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Serial.println(F("SSD1306 allocation failed"));
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for(;;); // Don't proceed, loop forever
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}
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// Show initial display buffer contents on the screen --
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// the library initializes this with an Adafruit splash screen.
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display.display();
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delay(2000); // Pause for 2 seconds
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// Clear the buffer
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display.clearDisplay();
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// Draw a single pixel in white
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display.drawPixel(10, 10, WHITE);
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// Show the display buffer on the screen. You MUST call display() after
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// drawing commands to make them visible on screen!
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display.display();
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delay(2000);
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// display.display() is NOT necessary after every single drawing command,
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// unless that's what you want...rather, you can batch up a bunch of
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// drawing operations and then update the screen all at once by calling
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// display.display(). These examples demonstrate both approaches...
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testdrawline(); // Draw many lines
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testdrawrect(); // Draw rectangles (outlines)
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testfillrect(); // Draw rectangles (filled)
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testdrawcircle(); // Draw circles (outlines)
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testfillcircle(); // Draw circles (filled)
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testdrawroundrect(); // Draw rounded rectangles (outlines)
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testfillroundrect(); // Draw rounded rectangles (filled)
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testdrawtriangle(); // Draw triangles (outlines)
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testfilltriangle(); // Draw triangles (filled)
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testdrawchar(); // Draw characters of the default font
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testdrawstyles(); // Draw 'stylized' characters
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testscrolltext(); // Draw scrolling text
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testdrawbitmap(); // Draw a small bitmap image
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// Invert and restore display, pausing in-between
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display.invertDisplay(true);
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delay(1000);
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display.invertDisplay(false);
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delay(1000);
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testanimate(logo_bmp, LOGO_WIDTH, LOGO_HEIGHT); // Animate bitmaps
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}
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void loop() {
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}
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void testdrawline() {
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int16_t i;
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display.clearDisplay(); // Clear display buffer
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for(i=0; i<display.width(); i+=4) {
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display.drawLine(0, 0, i, display.height()-1, WHITE);
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display.display(); // Update screen with each newly-drawn line
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delay(1);
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}
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for(i=0; i<display.height(); i+=4) {
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display.drawLine(0, 0, display.width()-1, i, WHITE);
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display.display();
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delay(1);
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}
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delay(250);
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display.clearDisplay();
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for(i=0; i<display.width(); i+=4) {
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display.drawLine(0, display.height()-1, i, 0, WHITE);
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display.display();
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delay(1);
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}
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for(i=display.height()-1; i>=0; i-=4) {
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display.drawLine(0, display.height()-1, display.width()-1, i, WHITE);
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display.display();
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delay(1);
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}
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delay(250);
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display.clearDisplay();
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for(i=display.width()-1; i>=0; i-=4) {
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display.drawLine(display.width()-1, display.height()-1, i, 0, WHITE);
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display.display();
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delay(1);
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}
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for(i=display.height()-1; i>=0; i-=4) {
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display.drawLine(display.width()-1, display.height()-1, 0, i, WHITE);
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display.display();
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delay(1);
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}
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delay(250);
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display.clearDisplay();
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for(i=0; i<display.height(); i+=4) {
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display.drawLine(display.width()-1, 0, 0, i, WHITE);
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display.display();
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delay(1);
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}
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for(i=0; i<display.width(); i+=4) {
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display.drawLine(display.width()-1, 0, i, display.height()-1, WHITE);
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display.display();
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delay(1);
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}
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delay(2000); // Pause for 2 seconds
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}
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void testdrawrect(void) {
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display.clearDisplay();
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for(int16_t i=0; i<display.height()/2; i+=2) {
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display.drawRect(i, i, display.width()-2*i, display.height()-2*i, WHITE);
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display.display(); // Update screen with each newly-drawn rectangle
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delay(1);
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}
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delay(2000);
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}
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void testfillrect(void) {
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display.clearDisplay();
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for(int16_t i=0; i<display.height()/2; i+=3) {
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// The INVERSE color is used so rectangles alternate white/black
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display.fillRect(i, i, display.width()-i*2, display.height()-i*2, INVERSE);
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display.display(); // Update screen with each newly-drawn rectangle
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delay(1);
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}
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delay(2000);
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}
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void testdrawcircle(void) {
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display.clearDisplay();
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for(int16_t i=0; i<max(display.width(),display.height())/2; i+=2) {
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display.drawCircle(display.width()/2, display.height()/2, i, WHITE);
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display.display();
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delay(1);
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}
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delay(2000);
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}
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void testfillcircle(void) {
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display.clearDisplay();
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for(int16_t i=max(display.width(),display.height())/2; i>0; i-=3) {
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// The INVERSE color is used so circles alternate white/black
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display.fillCircle(display.width() / 2, display.height() / 2, i, INVERSE);
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display.display(); // Update screen with each newly-drawn circle
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delay(1);
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}
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delay(2000);
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}
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void testdrawroundrect(void) {
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display.clearDisplay();
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for(int16_t i=0; i<display.height()/2-2; i+=2) {
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display.drawRoundRect(i, i, display.width()-2*i, display.height()-2*i,
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display.height()/4, WHITE);
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display.display();
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delay(1);
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}
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delay(2000);
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}
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void testfillroundrect(void) {
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display.clearDisplay();
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for(int16_t i=0; i<display.height()/2-2; i+=2) {
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// The INVERSE color is used so round-rects alternate white/black
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display.fillRoundRect(i, i, display.width()-2*i, display.height()-2*i,
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display.height()/4, INVERSE);
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display.display();
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delay(1);
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}
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delay(2000);
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}
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void testdrawtriangle(void) {
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display.clearDisplay();
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for(int16_t i=0; i<max(display.width(),display.height())/2; i+=5) {
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display.drawTriangle(
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display.width()/2 , display.height()/2-i,
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display.width()/2-i, display.height()/2+i,
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display.width()/2+i, display.height()/2+i, WHITE);
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display.display();
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delay(1);
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}
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delay(2000);
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}
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void testfilltriangle(void) {
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display.clearDisplay();
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for(int16_t i=max(display.width(),display.height())/2; i>0; i-=5) {
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// The INVERSE color is used so triangles alternate white/black
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display.fillTriangle(
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display.width()/2 , display.height()/2-i,
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display.width()/2-i, display.height()/2+i,
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display.width()/2+i, display.height()/2+i, INVERSE);
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display.display();
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delay(1);
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}
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delay(2000);
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}
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void testdrawchar(void) {
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display.clearDisplay();
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display.setTextSize(1); // Normal 1:1 pixel scale
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display.setTextColor(WHITE); // Draw white text
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display.setCursor(0, 0); // Start at top-left corner
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display.cp437(true); // Use full 256 char 'Code Page 437' font
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// Not all the characters will fit on the display. This is normal.
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// Library will draw what it can and the rest will be clipped.
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for(int16_t i=0; i<256; i++) {
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if(i == '\n') display.write(' ');
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else display.write(i);
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}
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display.display();
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delay(2000);
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}
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void testdrawstyles(void) {
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display.clearDisplay();
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display.setTextSize(1); // Normal 1:1 pixel scale
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display.setTextColor(WHITE); // Draw white text
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display.setCursor(0,0); // Start at top-left corner
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display.println(F("Hello, world!"));
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display.setTextColor(BLACK, WHITE); // Draw 'inverse' text
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display.println(3.141592);
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display.setTextSize(2); // Draw 2X-scale text
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display.setTextColor(WHITE);
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display.print(F("0x")); display.println(0xDEADBEEF, HEX);
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display.display();
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delay(2000);
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}
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void testscrolltext(void) {
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display.clearDisplay();
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display.setTextSize(2); // Draw 2X-scale text
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display.setTextColor(WHITE);
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display.setCursor(10, 0);
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display.println(F("scroll"));
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display.display(); // Show initial text
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delay(100);
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// Scroll in various directions, pausing in-between:
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display.startscrollright(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrollleft(0x00, 0x0F);
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delay(2000);
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display.stopscroll();
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delay(1000);
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display.startscrolldiagright(0x00, 0x07);
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delay(2000);
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display.startscrolldiagleft(0x00, 0x07);
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delay(2000);
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display.stopscroll();
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delay(1000);
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}
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void testdrawbitmap(void) {
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display.clearDisplay();
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display.drawBitmap(
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(display.width() - LOGO_WIDTH ) / 2,
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(display.height() - LOGO_HEIGHT) / 2,
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logo_bmp, LOGO_WIDTH, LOGO_HEIGHT, 1);
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display.display();
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delay(1000);
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}
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#define XPOS 0 // Indexes into the 'icons' array in function below
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#define YPOS 1
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#define DELTAY 2
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void testanimate(const uint8_t *bitmap, uint8_t w, uint8_t h) {
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int8_t f, icons[NUMFLAKES][3];
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// Initialize 'snowflake' positions
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for(f=0; f< NUMFLAKES; f++) {
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icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
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icons[f][YPOS] = -LOGO_HEIGHT;
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icons[f][DELTAY] = random(1, 6);
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Serial.print(F("x: "));
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Serial.print(icons[f][XPOS], DEC);
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Serial.print(F(" y: "));
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Serial.print(icons[f][YPOS], DEC);
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Serial.print(F(" dy: "));
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Serial.println(icons[f][DELTAY], DEC);
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}
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for(;;) { // Loop forever...
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display.clearDisplay(); // Clear the display buffer
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// Draw each snowflake:
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for(f=0; f< NUMFLAKES; f++) {
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display.drawBitmap(icons[f][XPOS], icons[f][YPOS], bitmap, w, h, WHITE);
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}
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display.display(); // Show the display buffer on the screen
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delay(200); // Pause for 1/10 second
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// Then update coordinates of each flake...
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for(f=0; f< NUMFLAKES; f++) {
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icons[f][YPOS] += icons[f][DELTAY];
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// If snowflake is off the bottom of the screen...
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if (icons[f][YPOS] >= display.height()) {
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// Reinitialize to a random position, just off the top
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icons[f][XPOS] = random(1 - LOGO_WIDTH, display.width());
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icons[f][YPOS] = -LOGO_HEIGHT;
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icons[f][DELTAY] = random(1, 6);
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}
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}
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}
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}
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