Fix TFT rotation, color, mirroring and offset and update Adafruit_TFT example

Author: francisduvivier

libraries/Fri3dBadge/examples/Adafruit_ST7789/graphicstest_st7789/graphicstest_st7789.ino

@@ -33,20 +33,16 @@
 #include <SPI.h>
 #include <Fri3dBadge_Adafruit_ST7789.h>
 
-Fri3dBadge_Adafruit_ST7789 tft = Fri3dBadge_Adafruit_ST7789();
+Fri3dBadge_Adafruit_ST7789 tft = Fri3dBadge_Adafruit_ST7789(); // Modified for Fri3dBadge_Adafruit_ST7789
 
 float p = 3.1415926;
 
 void setup(void) {
   Serial.begin(9600);
   Serial.print(F("Hello! ST77xx TFT Test"));
 
-  tft.init();           // Init ST7789 240x240
+  tft.init(); // Modified for Fri3dBadge_Adafruit_ST7789
 
-  // SPI speed defaults to SPI_DEFAULT_FREQ defined in the library, you can override it here
-  // Note that speed allowable depends on chip and quality of wiring, if you go too fast, you
-  // may end up with a black screen some times, or all the time.
-  //tft.setSPISpeed(40000000);
   Serial.println(F("Initialized"));
 
   uint16_t time = millis();
@@ -58,7 +54,7 @@ void setup(void) {
 
   // large block of text
   tft.fillScreen(ST77XX_BLACK);
-  testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", ST77XX_WHITE);
+  testdrawtext("Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. Lorem ipsum dolor sit amet, consectetur adipiscing elit. Curabitur adipiscing ante sed nibh tincidunt feugiat. Maecenas enim massa, fringilla sed malesuada et, malesuada sit amet turpis. Sed porttitor neque ut ante pretium vitae malesuada nunc bibendum. Nullam aliquet ultrices massa eu hendrerit. Ut sed nisi lorem. In vestibulum purus a tortor imperdiet posuere. ", ST77XX_WHITE);
   delay(1000);
 
   // tft print function!

libraries/Fri3dBadge/src/Fri3dBadge_Adafruit_ST7789.cpp

@@ -9,4 +9,14 @@ void Fri3dBadge_Adafruit_ST7789::init()
 {
     // Call the parent class's begin method to initialize the display
     Adafruit_ST7789::init(X_LCD_WIDTH, X_LCD_HEIGHT);
+      this->setSPISpeed(80000000);
+
+      this->sendCommand(ST77XX_INVOFF); // Fix Black vs white
+
+      Adafruit_ST7789::setColRowStart(0, 0); // Fix offset
+
+      this->setRotation(1); // Set initial rotation
+
+      uint8_t madctl = ST77XX_MADCTL_MV | ST77XX_MADCTL_BGR; // Fix Mirroring & Blue vs White
+      this->sendCommand(ST77XX_MADCTL, &madctl, 1);
 }

libraries/Fri3dBadge/src/Fri3dBadge_Adafruit_ST7789.h

@@ -5,6 +5,8 @@
 #include <Adafruit_ST7789.h> // Hardware-specific library for ST7789
 #include <SPI.h>
 
+#define ST77XX_MADCTL_BGR 0x08
+
 class Fri3dBadge_Adafruit_ST7789 : public Adafruit_ST7789 {
 public:
 	Fri3dBadge_Adafruit_ST7789();