Correct various inconsequential typos

examples/Generic/Animated_Eyes_1/Animated_Eyes_1.ino

@@ -1,7 +1,14 @@
 // An adaption of the "UncannyEyes" sketch (see eye_functions tab)
 // for the TFT_eSPI library. As written the sketch is for driving
 // one (240x320 minimum) TFT display, showing 2 eyes. See example
-// Animated_Eyes_2 for a dual 128x128 TFT display configued sketch.
+// Animated_Eyes_2 for a dual 128x128 TFT display configured sketch.
+
+// The size of the displayed eye is determined by the screen size and
+// resolution. The eye image is 128 pixels wide. In humans the palpebral
+// fissure (open eye) width is about 30mm so a low resolution, large
+// pixel size display works best to show a scale eye image. Note that
+// display manufacturers usually quote the diagonal measurement, so a
+// 128 x 128 1.7" display or 128 x 160 2" display is about right.
 
 // Configuration settings for the eye, eye style, display count,
 // chip selects and x offsets can be defined in the sketch "config.h" tab.
@@ -9,7 +16,7 @@
 // Performance (frames per second = fps) can be improved by using
 // DMA (for SPI displays only) on ESP32 and STM32 processors. Use
 // as high a SPI clock rate as is supported by the display. 27MHz
-// minimum, some diplays can be operated at higher clock rates in
+// minimum, some displays can be operated at higher clock rates in
 // the range 40-80MHz.
 
 // Single defaultEye performance for different processors
@@ -22,7 +29,7 @@
 // STM32F446 55MHz SPI              83 fps    155 fps
 // STM32F767 55MHz SPI             136 fps    197 fps
 
-// DMA can be used with STM32 and ESP32 processors when the interface
+// DMA can be used with RP2040, STM32 and ESP32 processors when the interface
 // is SPI, uncomment the next line:
 //#define USE_DMA
 
@@ -95,7 +102,7 @@ void setup(void) {
   // User call for additional features
   user_setup();
 
-  // Initialiase the eye(s), this will set all chip selects low for the tft.init()
+  // Initialise the eye(s), this will set all chip selects low for the tft.init()
   initEyes();
 
   // Initialise TFT

examples/Generic/Animated_Eyes_2/Animated_Eyes_2.ino

@@ -2,6 +2,13 @@
 // for the TFT_eSPI library. As written the sketch is for driving
 // two TFT displays.
 
+// The size of the displayed eye is determined by the screen size and
+// resolution. The eye image is 128 pixels wide. In humans the palpebral
+// fissure (open eye) width is about 30mm so a low resolution, large
+// pixel size display works best to show a scale eye image. Note that
+// display manufacturers usually quote the diagonal measurement, so a
+// 128 x 128 1.7" display or 128 x 160 2" display is about right.
+
 // The number of displays and chip selects used are defined in the
 // config.h tab. The display count can be set to 1. If using one
 // TFT and the chip select for that display is already defined in
@@ -17,7 +24,7 @@
 // Performance (frames per second = fps) can be improved by using
 // DMA (for SPI displays only) on ESP32 and STM32 processors. Use
 // as high a SPI clock rate as is supported by the display. 27MHz
-// minimum, some diplays can be operated at higher clock rates in
+// minimum, some displays can be operated at higher clock rates in
 // the range 40-80MHz.
 
 // Single defaultEye performance for different processors
@@ -30,7 +37,7 @@
 // STM32F446 55MHz SPI              83 fps    155 fps
 // STM32F767 55MHz SPI             136 fps    197 fps
 
-// DMA can be used with STM32 and ESP32 processors when the interface
+// DMA can be used with RP2040, STM32 and ESP32 processors when the interface
 // is SPI, uncomment the next line:
 //#define USE_DMA
 
@@ -103,7 +110,7 @@ void setup(void) {
   // User call for additional features
   user_setup();
 
-  // Initialiase the eye(s), this will set all chip selects low for the tft.init()
+  // Initialise the eye(s), this will set all chip selects low for the tft.init()
   initEyes();
 
   // Initialise TFT

examples/Generic/ESP8266_uncannyEyes/ESP8266_uncannyEyes.ino

@@ -8,9 +8,9 @@
 // To do, maybe, one day:
 // 1. Get the eye to blink
 // 2. Add another screen for another eye
-// 3. Add varaible to set how wide open the eye is
+// 3. Add variable to set how wide open the eye is
 // 4. Add a reflected highlight to the cornea
-// 5. Add top eyelid shaddow to eye surface
+// 5. Add top eyelid shadow to eye surface
 // 6. Add aliasing to blur mask edge
 //
 // With one lidded eye drawn the code runs at 28-33fps (at 27-40MHz SPI clock)
@@ -58,8 +58,8 @@
 
 // The ESP8266 is rather constrained here as it only has one analogue port.
 // An I2C ADC could be used for more analogue channels
-//#define JOYSTICK_X_PIN A0 // Analog pin for eye horiz pos (else auto)
-//#define JOYSTICK_Y_PIN A0 // Analog pin for eye vert position (")
+//#define JOYSTICK_X_PIN A0 // Analogue pin for eye horiz pos (else auto)
+//#define JOYSTICK_Y_PIN A0 // Analogue pin for eye vert position (")
 //#define JOYSTICK_X_FLIP   // If set, reverse stick X axis
 //#define JOYSTICK_Y_FLIP   // If set, reverse stick Y axis
 #define TRACKING          // If enabled, eyelid tracks pupil
@@ -107,7 +107,7 @@ void setup(void) {
   uint8_t e = 0;
   
   Serial.begin(250000);
-  randomSeed(analogRead(A0)); // Seed random() from floating analog input
+  randomSeed(analogRead(A0)); // Seed random() from floating analogue input
 
   eye[e].tft.init();
   eye[e].tft.fillScreen(TFT_BLACK);

examples/Generic/Local_Custom_Fonts/Local_Custom_Fonts.ino

@@ -21,7 +21,7 @@
 
   https://playground.arduino.cc/Code/UTF-8
 
-  To sumarise, UTF-8 characters are encoded as mor than 1 byte so care must
+  To summarise, UTF-8 characters are encoded as more than 1 byte so care must
   be taken:
 
      char c = 'µ';          // Wrong

examples/Generic/On_Off_Button/On_Off_Button.ino

@@ -19,7 +19,7 @@
 TFT_eSPI tft = TFT_eSPI();       // Invoke custom library
 
 // This is the file name used to store the touch coordinate
-// calibration data. Cahnge the name to start a new calibration.
+// calibration data. Change the name to start a new calibration.
 #define CALIBRATION_FILE "/TouchCalData3"
 
 // Set REPEAT_CAL to true instead of false to run calibration
@@ -115,7 +115,7 @@ void touch_calibrate()
 
   // check file system exists
   if (!SPIFFS.begin()) {
-    Serial.println("Formating file system");
+    Serial.println("Formatting file system");
     SPIFFS.format();
     SPIFFS.begin();
   }

examples/Generic/TFT_Button_Label_Datum/TFT_Button_Label_Datum.ino

@@ -133,7 +133,7 @@ void touch_calibrate()
 
   // check file system exists
   if (!SPIFFS.begin()) {
-    Serial.println("Formating file system");
+    Serial.println("Formatting file system");
     SPIFFS.format();
     SPIFFS.begin();
   }

examples/Generic/TFT_SPIFFS_BMP/BMP_functions.ino

@@ -1,4 +1,4 @@
-// Bodmers BMP image rendering function
+// Bodmer's BMP image rendering function
 
 void drawBmp(const char *filename, int16_t x, int16_t y) {
 

examples/Generic/TFT_Screen_Capture/TFT_Screen_Capture.ino

@@ -87,7 +87,7 @@ void loop() {
       // The new larger fonts do not need to use the .setCursor call, coords are embedded
       tft.setTextColor(TFT_BLACK); // Do not plot the background colour
 
-      // Overlay the black text on top of the rainbow plot (the advantage of not drawing the backgorund colour!)
+      // Overlay the black text on top of the rainbow plot (the advantage of not drawing the background colour!)
       tft.drawString("Font size 2", xpos, 14, 2); // Draw text centre at position xpos, 14 using font 2
       tft.drawString("Font size 4", xpos, 30, 4); // Draw text centre at position xpos, 30 using font 4
       tft.drawString("12.34", xpos, 54, 6);       // Draw text centre at position xpos, 54 using font 6
@@ -150,7 +150,7 @@ void loop() {
 // Fill screen with a rainbow pattern
 void rainbow_fill()
 {
-  // The colours and state are not initialised so the start colour changes each time the funtion is called
+  // The colours and state are not initialised so the start colour changes each time the function is called
   int rotation = tft.getRotation();
   tft.setRotation(random(4));
   for (int i = tft.height() - 1; i >= 0; i--) {

examples/Generic/Viewport_Demo/Viewport_commands.ino

@@ -17,7 +17,7 @@
   int32_t h = tft.getViewportHeight(); // Always returns height of viewport
   bool    f = tft.getViewportDatum();  // Datum of the viewport (false = TFT corner, true = viewport corner)
   // To check if all or part of an area is in the viewport
-  checkViewport(x, y, w, h); // Retruns "true" if all or part of area is in viewport
+  checkViewport(x, y, w, h); // Returns "true" if all or part of area is in viewport
 
   // To draw a rectangular frame outside viewport of width W (when W is negative)
   tft.frameViewport(TFT_RED, -W); // Note setting the width to a large negative value will clear the screen

examples/Generic/alphaBlend_Test/alphaBlend_Test.ino

@@ -1,5 +1,5 @@
 /*
-  This tests the alpha blending function that is used with the antialiased
+  This tests the alpha blending function that is used with the anti-aliased
   fonts:
 
   Alpha = 0 = 100% background, alpha = 255 = 100% foreground colour