Add support for scroll functions

2015-07-22 11:18:22 -04:00
parent 7396fc17c8
commit ca13033791
3 changed files with 109 additions and 0 deletions
@@ -0,0 +1,55 @@
+#include <SPI.h>
+#include <Wire.h>
+#include <EEPROM.h>
+#include "Adafruit_GFX.h"
+#include "Adafruit_RA8875.h"
+
+// LCD
+// Library only supports hardware SPI at this time
+// Connect SCLK to UNO Digital #13 (Hardware SPI clock)
+// Connect MISO to UNO Digital #12 (Hardware SPI MISO)
+// Connect MOSI to UNO Digital #11 (Hardware SPI MOSI)
+#define RA8875_INT     3
+#define RA8875_CS      10
+#define RA8875_RESET   9
+
+#define NUMINPUTS 4
+
+Adafruit_RA8875 tft = Adafruit_RA8875(RA8875_CS, RA8875_RESET);
+
+void setup() {
+  Serial.begin(9600);
+
+  if (!tft.begin(RA8875_800x480)) {
+    Serial.println("LCD not found!");
+    while (1);
+  }
+
+  tft.displayOn(true);
+  tft.GPIOX(true);      // Enable TFT - display enable tied to GPIOX
+  tft.PWM1config(true, RA8875_PWM_CLK_DIV1024); // PWM output for backlight
+  tft.PWM1out(255);
+
+  tft.fillScreen(RA8875_BLACK);
+  tft.setScrollWindow(0,0,800,480,RA8875_SCROLL_BOTH);
+  tft.fillCircle(690, 370, 100, RA8875_WHITE);
+}
+
+
+void loop() {
+  static int Scroll=0;
+  static int Dir=1;
+  
+  tft.scrollX(Scroll);
+  tft.scrollY(Scroll);
+  
+  Scroll+=Dir;
+  if(Scroll >= 250) {
+    Dir=-1;;
+  } else if(Scroll <= 0) {
+    Dir=1;
+  }
+
+  delay(10);
+}
+