123 lines
3.7 KiB
C++
123 lines
3.7 KiB
C++
/******************************************************************
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This is an example for the Adafruit RA8875 Driver board for TFT displays
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---------------> http://www.adafruit.com/products/1590
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The RA8875 is a TFT driver for up to 800x480 dotclock'd displays
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It is tested to work with displays in the Adafruit shop. Other displays
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may need timing adjustments and are not guanteed to work.
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Adafruit invests time and resources providing this open
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source code, please support Adafruit and open-source hardware
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by purchasing products from Adafruit!
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Written by Limor Fried/Ladyada for Adafruit Industries.
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BSD license, check license.txt for more information.
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All text above must be included in any redistribution.
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******************************************************************/
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#include <SPI.h>
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#include "Adafruit_GFX.h"
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#include "Adafruit_RA8875.h"
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// Library only supports hardware SPI at this time
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// Connect SCLK to UNO Digital #13 (Hardware SPI clock)
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// Connect MISO to UNO Digital #12 (Hardware SPI MISO)
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// Connect MOSI to UNO Digital #13 (Hardware SPI MOSI)
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#define RA8875_INT 3
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#define RA8875_CS 10
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#define RA8875_RESET 9
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Adafruit_RA8875 tft = Adafruit_RA8875(RA8875_CS, RA8875_RESET);
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uint16_t tx, ty;
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void setup()
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{
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Serial.begin(9600);
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Serial.println("RA8875 start");
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/* Initialise the display using 'RA8875_480x272' or 'RA8875_800x480' */
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if (!tft.begin(RA8875_480x272)) {
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Serial.println("RA8875 Not Found!");
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while (1);
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}
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Serial.println("Found RA8875");
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tft.displayOn(true);
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tft.GPIOX(true); // Enable TFT - display enable tied to GPIOX
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tft.PWM1config(true, RA8875_PWM_CLK_DIV1024); // PWM output for backlight
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tft.PWM1out(255);
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// With hardware accelleration this is instant
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tft.fillScreen(RA8875_WHITE);
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// Play with PWM
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for (uint8_t i=255; i!=0; i-=5 )
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{
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tft.PWM1out(i);
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delay(10);
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}
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for (uint8_t i=0; i!=255; i+=5 )
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{
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tft.PWM1out(i);
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delay(10);
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}
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tft.PWM1out(255);
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tft.fillScreen(RA8875_RED);
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delay(500);
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tft.fillScreen(RA8875_YELLOW);
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delay(500);
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tft.fillScreen(RA8875_GREEN);
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delay(500);
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tft.fillScreen(RA8875_CYAN);
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delay(500);
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tft.fillScreen(RA8875_MAGENTA);
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delay(500);
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tft.fillScreen(RA8875_BLACK);
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// Try some GFX acceleration!
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tft.drawCircle(100, 100, 50, RA8875_BLACK);
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tft.fillCircle(100, 100, 49, RA8875_GREEN);
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tft.fillRect(11, 11, 398, 198, RA8875_BLUE);
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tft.drawRect(10, 10, 400, 200, RA8875_GREEN);
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tft.fillRoundRect(200, 10, 200, 100, 10, RA8875_RED);
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tft.drawPixel(10,10,RA8875_BLACK);
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tft.drawPixel(11,11,RA8875_BLACK);
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tft.drawLine(10, 10, 200, 100, RA8875_RED);
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tft.drawTriangle(200, 15, 250, 100, 150, 125, RA8875_BLACK);
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tft.fillTriangle(200, 16, 249, 99, 151, 124, RA8875_YELLOW);
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tft.drawEllipse(300, 100, 100, 40, RA8875_BLACK);
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tft.fillEllipse(300, 100, 98, 38, RA8875_GREEN);
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// Argument 5 (curvePart) is a 2-bit value to control each corner (select 0, 1, 2, or 3)
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tft.drawCurve(50, 100, 80, 40, 2, RA8875_BLACK);
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tft.fillCurve(50, 100, 78, 38, 2, RA8875_WHITE);
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pinMode(RA8875_INT, INPUT);
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digitalWrite(RA8875_INT, HIGH);
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tft.touchEnable(true);
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Serial.print("Status: "); Serial.println(tft.readStatus(), HEX);
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Serial.println("Waiting for touch events ...");
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}
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void loop()
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{
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float xScale = 1024.0F/tft.width();
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float yScale = 1024.0F/tft.height();
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/* Wait around for touch events */
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if (! digitalRead(RA8875_INT))
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{
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if (tft.touched())
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{
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Serial.print("Touch: ");
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tft.touchRead(&tx, &ty);
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Serial.print(tx); Serial.print(", "); Serial.println(ty);
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/* Draw a circle */
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tft.fillCircle((uint16_t)(tx/xScale), (uint16_t)(ty/yScale), 4, RA8875_WHITE);
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}
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}
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} |