diff --git a/.github/workflows/githubci.yml b/.github/workflows/githubci.yml
new file mode 100644
index 0000000..727b4de
--- /dev/null
+++ b/.github/workflows/githubci.yml
@@ -0,0 +1,32 @@
+name: Arduino Library CI
+
+on: [pull_request, push, repository_dispatch]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    
+    steps:
+    - uses: actions/setup-python@v1
+      with:
+        python-version: '3.x'
+    - uses: actions/checkout@v2
+    - uses: actions/checkout@v2
+      with:
+         repository: adafruit/ci-arduino
+         path: ci
+
+    - name: pre-install
+      run: bash ci/actions_install.sh
+
+    - name: test platforms
+      run: python3 ci/build_platform.py main_platforms
+
+    - name: clang
+      run: python3 ci/run-clang-format.py -e "ci/*" -e "bin/*" -r . 
+
+    - name: doxygen
+      env:
+        GH_REPO_TOKEN: ${{ secrets.GH_REPO_TOKEN }}
+        PRETTYNAME : "Adafruit TFTLCD Library"
+      run: bash ci/doxy_gen_and_deploy.sh
diff --git a/Adafruit_TFTLCD.cpp b/Adafruit_TFTLCD.cpp
index 7ee270f..fd0201f 100644
--- a/Adafruit_TFTLCD.cpp
+++ b/Adafruit_TFTLCD.cpp
@@ -1,3 +1,32 @@
+/*!
+ * @file Adafruit_TFTLCD.cpp
+ *
+ * @mainpage Adafruit TFTLCD Library
+ *
+ * @section intro_sec Introduction
+ *
+ * This is a library for our Adafruit 16-channel PWM & Servo driver, shield or
+ * FeatherWing
+ *
+ * Pick one up today in the adafruit shop!
+ * * https://www.adafruit.com/product/335
+ * * https://www.adafruit.com/product/376
+ *
+ * These displays use 8-bit parallel to communicate, 12 or 13 pins are required
+ * to interface (RST is optional). Adafruit invests time and resources providing
+ * this open source code, please support Adafruit and open-source hardware by
+ * purchasing products from Adafruit!
+ *
+ * @section author Author
+ *
+ * Written by Limor Fried/Ladyada for Adafruit Industries.
+ *
+ * @section license License
+ *
+ * BSD license, check license.txt for more information. All text above must be
+ * included in any redistribution
+ */
+
 // IMPORTANT: LIBRARY MUST BE SPECIFICALLY CONFIGURED FOR EITHER TFT SHIELD
 // OR BREAKOUT BOARD USAGE.  SEE RELEVANT COMMENTS IN Adafruit_TFTLCD.h
 
@@ -21,15 +50,15 @@
 //#define TFTWIDTH   320
 //#define TFTHEIGHT  480
 
-#define TFTWIDTH 240
-#define TFTHEIGHT 320
+#define TFTWIDTH 240  //!< TFT width in pixels
+#define TFTHEIGHT 320 //!< TFT height in pixels
 
 // LCD controller chip identifiers
-#define ID_932X 0
-#define ID_7575 1
-#define ID_9341 2
-#define ID_HX8357D 3
-#define ID_UNKNOWN 0xFF
+#define ID_932X 0       //!< 932x LCD driver ID
+#define ID_7575 1       //!< 7575 LCD driver ID
+#define ID_9341 2       //!< 9341 LCD driver ID
+#define ID_HX8357D 3    //!< HX8357D LCD driver ID
+#define ID_UNKNOWN 0xFF //!< Unknown LCD driver ID
 
 #include "registers.h"
 
@@ -118,7 +147,7 @@ void Adafruit_TFTLCD::init(void) {
 }
 
 // Initialization command tables for different LCD controllers
-#define TFTLCD_DELAY 0xFF
+#define TFTLCD_DELAY 0xFF //!< Allows the delay to be set
 static const uint8_t HX8347G_regValues[] PROGMEM = {
     0x2E, 0x89, 0x29, 0x8F, 0x2B, 0x02, 0xE2, 0x00, 0xE4, 0x01, 0xE5, 0x10,
     0xE6, 0x01, 0xE7, 0x10, 0xE8, 0x70, 0xF2, 0x00, 0xEA, 0x00, 0xEB, 0x20,
@@ -137,6 +166,7 @@ static const uint8_t HX8347G_regValues[] PROGMEM = {
     0x02, 0x00, 0x03, 0x00, 0x04, 0x00, 0x05, 0xEF, 0x06, 0x00, 0x07, 0x00,
     0x08, 0x01, 0x09, 0x3F};
 
+/// @cond SKIP
 static const uint8_t HX8357D_regValues[] PROGMEM = {
     HX8357_SWRESET,
     0,
@@ -315,6 +345,7 @@ static const uint16_t ILI932x_regValues[] PROGMEM = {
     ILI932X_DISP_CTRL1,
     0x0133, // Main screen turn on
 };
+/// @endcond SKIP
 
 void Adafruit_TFTLCD::begin(uint16_t id) {
   uint8_t i = 0;
@@ -930,6 +961,9 @@ void Adafruit_TFTLCD::setRotation(uint8_t x) {
 }
 
 #ifdef read8isFunctionalized
+/*!
+ * @brief Reads 8 bits
+ */
 #define read8(x) x = read8fn()
 #endif
 
diff --git a/Adafruit_TFTLCD.h b/Adafruit_TFTLCD.h
index 2724388..7c2e922 100644
--- a/Adafruit_TFTLCD.h
+++ b/Adafruit_TFTLCD.h
@@ -1,3 +1,6 @@
+/*!
+ * @brief Adafruit_TFTLCD.h
+ */
 // IMPORTANT: SEE COMMENTS @ LINE 15 REGARDING SHIELD VS BREAKOUT BOARD USAGE.
 
 // Graphics library by ladyada/adafruit with init code from Rossum
@@ -22,25 +25,136 @@
 class Adafruit_TFTLCD : public Adafruit_GFX {
 
 public:
+  /*!
+   * @brief TFTLCD constructor
+   * @param cs Chip select pin
+   * @param cd Command/data pin
+   * @param wr Write pin
+   * @param rd Read pin
+   * @param rst Reset pin
+   */
   Adafruit_TFTLCD(uint8_t cs, uint8_t cd, uint8_t wr, uint8_t rd, uint8_t rst);
   Adafruit_TFTLCD(void);
 
+  /*!
+   * @brief Begins connection
+   * @param id LCD controller id
+   */
   void begin(uint16_t id = 0x9325);
+  /*!
+   * @brief Sets a specified pixel the specified color
+   * @param x X location of the pixel
+   * @param y Y location of the pixel
+   * @param color Color to set the pixel
+   */
   void drawPixel(int16_t x, int16_t y, uint16_t color);
+  /*!
+   * @brief Draw fast horizontal line
+   * @param x0 Starting X position
+   * @param y0 Starting Y position
+   * @param w Length of the line
+   * @param color Color of the line
+   */
   void drawFastHLine(int16_t x0, int16_t y0, int16_t w, uint16_t color);
+  /*!
+   * @brief Draw fast vertical line
+   * @param x0 Starting X position
+   * @param y0 Starting Y position
+   * @param h Height of the line
+   * @param color Color of the line
+   */
   void drawFastVLine(int16_t x0, int16_t y0, int16_t h, uint16_t color);
+  /*!
+   * @brief Makes a filled rectangle
+   * @param x Initial x value of the rectangle
+   * @param y Initial y value of the rectangle
+   * @param w Width of the rectangle
+   * @param h Height of the rectangle
+   * @param c Color of the rectangle
+   */
   void fillRect(int16_t x, int16_t y, int16_t w, int16_t h, uint16_t c);
+  /*!
+   * @brief Fills screen with the specified color
+   * @param color Color to set the screen
+   */
   void fillScreen(uint16_t color);
+  /*!
+   * @brief Resets the display
+   */
   void reset(void);
+  /*!
+   * @brief Appears to be deprecated. Sets a register
+   * @param ptr Pointer to the register to set
+   * @param n How many bytes to set
+   */
   void setRegisters8(uint8_t *ptr, uint8_t n);
+  /*!
+   * @brief Appears to be deprecated. Sets a register
+   * @param ptr Pointer to the register to set
+   * @param n How many bytes to set
+   */
   void setRegisters16(uint16_t *ptr, uint8_t n);
+  /*!
+   * @brief Rotates the display
+   * @param x How much to rotate the display
+   */
   void setRotation(uint8_t x);
   // These methods are public in order for BMP examples to work:
+  /*!
+   * @brief Sets the LCD address window (and address counter, on 932X).
+   * Relevant to rect/screen fills and H/V lines. Input coordinates are
+   * assumed pre-sorted (e.g. x2 >= x1)
+   * @param x1 X1 of the lcd window
+   * @param y1 Y1 of the lcd window
+   * @param x2 X2 of the lcd window
+   * @param y2 Y2 of the lcd window
+   */
   void setAddrWindow(int x1, int y1, int x2, int y2);
+  /*!
+   * @brief Issues 'raw' an array of 16-bit color values to the LCD; used
+   * externally by BMP examples.  Assumes that setWindowAddr() has
+   * previously been set to define the bounds.  Max 255 pixels at
+   * a time (BMP examples read in small chunks due to limited RAM).
+   * @param data Pointer to array with data
+   * @param len How much of the data to issue
+   * @param first If first is true, CGRAM write command is only issued on the
+   * first call
+   */
   void pushColors(uint16_t *data, uint8_t len, boolean first);
 
+  /*!
+   * @brief Pass 8-bit (each) R,G,B, get back 16-bit packed color
+   * @param r Red value
+   * @param g Green value
+   * @param b Blue value
+   * @return Returns the 16-bit packed color
+   */
   uint16_t color565(uint8_t r, uint8_t g, uint8_t b),
-      readPixel(int16_t x, int16_t y), readID(void);
+      /*!
+       * @brief Reads the state of a single pixel.
+       * Because this function is used infrequently, it configures the ports for
+       * the read operation, reads the data, then restores the ports to the
+       * write configuration.  Write operations happen a LOT, so it's
+       * advantageous to leave the ports in that state as a default.
+       * @param x X value of the pixel to read
+       * @param y Y value of the pixel to read
+       * @return Returns the state of the pixel
+       */
+      readPixel(int16_t x, int16_t y),
+      /*!
+       *@brief Reads the ID of the device
+       * Because this function is used infrequently, it configures the ports for
+       * the read operation, reads the data, then restores the ports to the
+       *write configuration.  Write operations happen a LOT, so it's
+       *advantageous to leave the ports in that state as a default.
+       * @return Returns the ID of the device
+       */
+      readID(void);
+  /*!
+   * @brief Reads the specified register
+   * @param r Address of the register to read
+   * @return Returns the data from the register
+   */
   uint32_t readReg(uint8_t r);
 
 private:
diff --git a/README.md b/README.md
index ff6b53e..e7b41aa 100644
--- a/README.md
+++ b/README.md
@@ -1,4 +1,4 @@
-# Adafruit library for 8-bit TFT LCDs such as ILI9325, ILI9328, etc
+# Adafruit library for 8-bit TFT LCDs such as ILI9325, ILI9328, etc [![Build Status](https://github.com/adafruit/TFTLCD-Library/workflows/Arduino%20Library%20CI/badge.svg)](https://github.com/adafruit/TFTLCD-Library/actions)[![Documentation](https://github.com/adafruit/ci-arduino/blob/master/assets/doxygen_badge.svg)](http://adafruit.github.io/TFTLCD-Library/html/index.html)
 
 This is a library for our Adafruit 16-channel PWM & Servo driver, shield or FeatherWing
 
diff --git a/examples/tftpaint_shield/glcdfont.c b/examples/tftpaint_shield/glcdfont.c
index c1dcede..e48b615 100644
--- a/examples/tftpaint_shield/glcdfont.c
+++ b/examples/tftpaint_shield/glcdfont.c
@@ -4,261 +4,113 @@
 
 // standard ascii 5x7 font
 
-static unsigned char  font[]  = {
-        0x00, 0x00, 0x00, 0x00, 0x00,   
-	0x3E, 0x5B, 0x4F, 0x5B, 0x3E, 	
-	0x3E, 0x6B, 0x4F, 0x6B, 0x3E, 	
-	0x1C, 0x3E, 0x7C, 0x3E, 0x1C, 
-	0x18, 0x3C, 0x7E, 0x3C, 0x18, 
-	0x1C, 0x57, 0x7D, 0x57, 0x1C, 
-	0x1C, 0x5E, 0x7F, 0x5E, 0x1C, 
-	0x00, 0x18, 0x3C, 0x18, 0x00, 
-	0xFF, 0xE7, 0xC3, 0xE7, 0xFF, 
-	0x00, 0x18, 0x24, 0x18, 0x00, 
-	0xFF, 0xE7, 0xDB, 0xE7, 0xFF, 
-	0x30, 0x48, 0x3A, 0x06, 0x0E, 
-	0x26, 0x29, 0x79, 0x29, 0x26, 
-	0x40, 0x7F, 0x05, 0x05, 0x07, 
-	0x40, 0x7F, 0x05, 0x25, 0x3F, 
-	0x5A, 0x3C, 0xE7, 0x3C, 0x5A, 
-	0x7F, 0x3E, 0x1C, 0x1C, 0x08, 
-	0x08, 0x1C, 0x1C, 0x3E, 0x7F, 
-	0x14, 0x22, 0x7F, 0x22, 0x14, 
-	0x5F, 0x5F, 0x00, 0x5F, 0x5F, 
-	0x06, 0x09, 0x7F, 0x01, 0x7F, 
-	0x00, 0x66, 0x89, 0x95, 0x6A, 
-	0x60, 0x60, 0x60, 0x60, 0x60, 
-	0x94, 0xA2, 0xFF, 0xA2, 0x94, 
-	0x08, 0x04, 0x7E, 0x04, 0x08, 
-	0x10, 0x20, 0x7E, 0x20, 0x10, 
-	0x08, 0x08, 0x2A, 0x1C, 0x08, 
-	0x08, 0x1C, 0x2A, 0x08, 0x08, 
-	0x1E, 0x10, 0x10, 0x10, 0x10, 
-	0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 
-	0x30, 0x38, 0x3E, 0x38, 0x30, 
-	0x06, 0x0E, 0x3E, 0x0E, 0x06, 
-	0x00, 0x00, 0x00, 0x00, 0x00, 
-	0x00, 0x00, 0x5F, 0x00, 0x00, 
-	0x00, 0x07, 0x00, 0x07, 0x00, 
-	0x14, 0x7F, 0x14, 0x7F, 0x14, 
-	0x24, 0x2A, 0x7F, 0x2A, 0x12, 
-	0x23, 0x13, 0x08, 0x64, 0x62, 
-	0x36, 0x49, 0x56, 0x20, 0x50, 
-	0x00, 0x08, 0x07, 0x03, 0x00, 
-	0x00, 0x1C, 0x22, 0x41, 0x00, 
-	0x00, 0x41, 0x22, 0x1C, 0x00, 
-	0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 
-	0x08, 0x08, 0x3E, 0x08, 0x08, 
-	0x00, 0x80, 0x70, 0x30, 0x00, 
-	0x08, 0x08, 0x08, 0x08, 0x08, 
-	0x00, 0x00, 0x60, 0x60, 0x00, 
-	0x20, 0x10, 0x08, 0x04, 0x02, 
-	0x3E, 0x51, 0x49, 0x45, 0x3E, 
-	0x00, 0x42, 0x7F, 0x40, 0x00, 
-	0x72, 0x49, 0x49, 0x49, 0x46, 
-	0x21, 0x41, 0x49, 0x4D, 0x33, 
-	0x18, 0x14, 0x12, 0x7F, 0x10, 
-	0x27, 0x45, 0x45, 0x45, 0x39, 
-	0x3C, 0x4A, 0x49, 0x49, 0x31, 
-	0x41, 0x21, 0x11, 0x09, 0x07, 
-	0x36, 0x49, 0x49, 0x49, 0x36, 
-	0x46, 0x49, 0x49, 0x29, 0x1E, 
-	0x00, 0x00, 0x14, 0x00, 0x00, 
-	0x00, 0x40, 0x34, 0x00, 0x00, 
-	0x00, 0x08, 0x14, 0x22, 0x41, 
-	0x14, 0x14, 0x14, 0x14, 0x14, 
-	0x00, 0x41, 0x22, 0x14, 0x08, 
-	0x02, 0x01, 0x59, 0x09, 0x06, 
-	0x3E, 0x41, 0x5D, 0x59, 0x4E, 
-	0x7C, 0x12, 0x11, 0x12, 0x7C, 
-	0x7F, 0x49, 0x49, 0x49, 0x36, 
-	0x3E, 0x41, 0x41, 0x41, 0x22, 
-	0x7F, 0x41, 0x41, 0x41, 0x3E, 
-	0x7F, 0x49, 0x49, 0x49, 0x41, 
-	0x7F, 0x09, 0x09, 0x09, 0x01, 
-	0x3E, 0x41, 0x41, 0x51, 0x73, 
-	0x7F, 0x08, 0x08, 0x08, 0x7F, 
-	0x00, 0x41, 0x7F, 0x41, 0x00, 
-	0x20, 0x40, 0x41, 0x3F, 0x01, 
-	0x7F, 0x08, 0x14, 0x22, 0x41, 
-	0x7F, 0x40, 0x40, 0x40, 0x40, 
-	0x7F, 0x02, 0x1C, 0x02, 0x7F, 
-	0x7F, 0x04, 0x08, 0x10, 0x7F, 
-	0x3E, 0x41, 0x41, 0x41, 0x3E, 
-	0x7F, 0x09, 0x09, 0x09, 0x06, 
-	0x3E, 0x41, 0x51, 0x21, 0x5E, 
-	0x7F, 0x09, 0x19, 0x29, 0x46, 
-	0x26, 0x49, 0x49, 0x49, 0x32, 
-	0x03, 0x01, 0x7F, 0x01, 0x03, 
-	0x3F, 0x40, 0x40, 0x40, 0x3F, 
-	0x1F, 0x20, 0x40, 0x20, 0x1F, 
-	0x3F, 0x40, 0x38, 0x40, 0x3F, 
-	0x63, 0x14, 0x08, 0x14, 0x63, 
-	0x03, 0x04, 0x78, 0x04, 0x03, 
-	0x61, 0x59, 0x49, 0x4D, 0x43, 
-	0x00, 0x7F, 0x41, 0x41, 0x41, 
-	0x02, 0x04, 0x08, 0x10, 0x20, 
-	0x00, 0x41, 0x41, 0x41, 0x7F, 
-	0x04, 0x02, 0x01, 0x02, 0x04, 
-	0x40, 0x40, 0x40, 0x40, 0x40, 
-	0x00, 0x03, 0x07, 0x08, 0x00, 
-	0x20, 0x54, 0x54, 0x78, 0x40, 
-	0x7F, 0x28, 0x44, 0x44, 0x38, 
-	0x38, 0x44, 0x44, 0x44, 0x28, 
-	0x38, 0x44, 0x44, 0x28, 0x7F, 
-	0x38, 0x54, 0x54, 0x54, 0x18, 
-	0x00, 0x08, 0x7E, 0x09, 0x02, 
-	0x18, 0xA4, 0xA4, 0x9C, 0x78, 
-	0x7F, 0x08, 0x04, 0x04, 0x78, 
-	0x00, 0x44, 0x7D, 0x40, 0x00, 
-	0x20, 0x40, 0x40, 0x3D, 0x00, 
-	0x7F, 0x10, 0x28, 0x44, 0x00, 
-	0x00, 0x41, 0x7F, 0x40, 0x00, 
-	0x7C, 0x04, 0x78, 0x04, 0x78, 
-	0x7C, 0x08, 0x04, 0x04, 0x78, 
-	0x38, 0x44, 0x44, 0x44, 0x38, 
-	0xFC, 0x18, 0x24, 0x24, 0x18, 
-	0x18, 0x24, 0x24, 0x18, 0xFC, 
-	0x7C, 0x08, 0x04, 0x04, 0x08, 
-	0x48, 0x54, 0x54, 0x54, 0x24, 
-	0x04, 0x04, 0x3F, 0x44, 0x24, 
-	0x3C, 0x40, 0x40, 0x20, 0x7C, 
-	0x1C, 0x20, 0x40, 0x20, 0x1C, 
-	0x3C, 0x40, 0x30, 0x40, 0x3C, 
-	0x44, 0x28, 0x10, 0x28, 0x44, 
-	0x4C, 0x90, 0x90, 0x90, 0x7C, 
-	0x44, 0x64, 0x54, 0x4C, 0x44, 
-	0x00, 0x08, 0x36, 0x41, 0x00, 
-	0x00, 0x00, 0x77, 0x00, 0x00, 
-	0x00, 0x41, 0x36, 0x08, 0x00, 
-	0x02, 0x01, 0x02, 0x04, 0x02, 
-	0x3C, 0x26, 0x23, 0x26, 0x3C, 
-	0x1E, 0xA1, 0xA1, 0x61, 0x12, 
-	0x3A, 0x40, 0x40, 0x20, 0x7A, 
-	0x38, 0x54, 0x54, 0x55, 0x59, 
-	0x21, 0x55, 0x55, 0x79, 0x41, 
-	0x21, 0x54, 0x54, 0x78, 0x41, 
-	0x21, 0x55, 0x54, 0x78, 0x40, 
-	0x20, 0x54, 0x55, 0x79, 0x40, 
-	0x0C, 0x1E, 0x52, 0x72, 0x12, 
-	0x39, 0x55, 0x55, 0x55, 0x59, 
-	0x39, 0x54, 0x54, 0x54, 0x59, 
-	0x39, 0x55, 0x54, 0x54, 0x58, 
-	0x00, 0x00, 0x45, 0x7C, 0x41, 
-	0x00, 0x02, 0x45, 0x7D, 0x42, 
-	0x00, 0x01, 0x45, 0x7C, 0x40, 
-	0xF0, 0x29, 0x24, 0x29, 0xF0, 
-	0xF0, 0x28, 0x25, 0x28, 0xF0, 
-	0x7C, 0x54, 0x55, 0x45, 0x00, 
-	0x20, 0x54, 0x54, 0x7C, 0x54, 
-	0x7C, 0x0A, 0x09, 0x7F, 0x49, 
-	0x32, 0x49, 0x49, 0x49, 0x32, 
-	0x32, 0x48, 0x48, 0x48, 0x32, 
-	0x32, 0x4A, 0x48, 0x48, 0x30, 
-	0x3A, 0x41, 0x41, 0x21, 0x7A, 
-	0x3A, 0x42, 0x40, 0x20, 0x78, 
-	0x00, 0x9D, 0xA0, 0xA0, 0x7D, 
-	0x39, 0x44, 0x44, 0x44, 0x39, 
-	0x3D, 0x40, 0x40, 0x40, 0x3D, 
-	0x3C, 0x24, 0xFF, 0x24, 0x24, 
-	0x48, 0x7E, 0x49, 0x43, 0x66, 
-	0x2B, 0x2F, 0xFC, 0x2F, 0x2B, 
-	0xFF, 0x09, 0x29, 0xF6, 0x20, 
-	0xC0, 0x88, 0x7E, 0x09, 0x03, 
-	0x20, 0x54, 0x54, 0x79, 0x41, 
-	0x00, 0x00, 0x44, 0x7D, 0x41, 
-	0x30, 0x48, 0x48, 0x4A, 0x32, 
-	0x38, 0x40, 0x40, 0x22, 0x7A, 
-	0x00, 0x7A, 0x0A, 0x0A, 0x72, 
-	0x7D, 0x0D, 0x19, 0x31, 0x7D, 
-	0x26, 0x29, 0x29, 0x2F, 0x28, 
-	0x26, 0x29, 0x29, 0x29, 0x26, 
-	0x30, 0x48, 0x4D, 0x40, 0x20, 
-	0x38, 0x08, 0x08, 0x08, 0x08, 
-	0x08, 0x08, 0x08, 0x08, 0x38, 
-	0x2F, 0x10, 0xC8, 0xAC, 0xBA, 
-	0x2F, 0x10, 0x28, 0x34, 0xFA, 
-	0x00, 0x00, 0x7B, 0x00, 0x00, 
-	0x08, 0x14, 0x2A, 0x14, 0x22, 
-	0x22, 0x14, 0x2A, 0x14, 0x08, 
-	0xAA, 0x00, 0x55, 0x00, 0xAA, 
-	0xAA, 0x55, 0xAA, 0x55, 0xAA, 
-	0x00, 0x00, 0x00, 0xFF, 0x00, 
-	0x10, 0x10, 0x10, 0xFF, 0x00, 
-	0x14, 0x14, 0x14, 0xFF, 0x00, 
-	0x10, 0x10, 0xFF, 0x00, 0xFF, 
-	0x10, 0x10, 0xF0, 0x10, 0xF0, 
-	0x14, 0x14, 0x14, 0xFC, 0x00, 
-	0x14, 0x14, 0xF7, 0x00, 0xFF, 
-	0x00, 0x00, 0xFF, 0x00, 0xFF, 
-	0x14, 0x14, 0xF4, 0x04, 0xFC, 
-	0x14, 0x14, 0x17, 0x10, 0x1F, 
-	0x10, 0x10, 0x1F, 0x10, 0x1F, 
-	0x14, 0x14, 0x14, 0x1F, 0x00, 
-	0x10, 0x10, 0x10, 0xF0, 0x00, 
-	0x00, 0x00, 0x00, 0x1F, 0x10, 
-	0x10, 0x10, 0x10, 0x1F, 0x10, 
-	0x10, 0x10, 0x10, 0xF0, 0x10, 
-	0x00, 0x00, 0x00, 0xFF, 0x10, 
-	0x10, 0x10, 0x10, 0x10, 0x10, 
-	0x10, 0x10, 0x10, 0xFF, 0x10, 
-	0x00, 0x00, 0x00, 0xFF, 0x14, 
-	0x00, 0x00, 0xFF, 0x00, 0xFF, 
-	0x00, 0x00, 0x1F, 0x10, 0x17, 
-	0x00, 0x00, 0xFC, 0x04, 0xF4, 
-	0x14, 0x14, 0x17, 0x10, 0x17, 
-	0x14, 0x14, 0xF4, 0x04, 0xF4, 
-	0x00, 0x00, 0xFF, 0x00, 0xF7, 
-	0x14, 0x14, 0x14, 0x14, 0x14, 
-	0x14, 0x14, 0xF7, 0x00, 0xF7, 
-	0x14, 0x14, 0x14, 0x17, 0x14, 
-	0x10, 0x10, 0x1F, 0x10, 0x1F, 
-	0x14, 0x14, 0x14, 0xF4, 0x14, 
-	0x10, 0x10, 0xF0, 0x10, 0xF0, 
-	0x00, 0x00, 0x1F, 0x10, 0x1F, 
-	0x00, 0x00, 0x00, 0x1F, 0x14, 
-	0x00, 0x00, 0x00, 0xFC, 0x14, 
-	0x00, 0x00, 0xF0, 0x10, 0xF0, 
-	0x10, 0x10, 0xFF, 0x10, 0xFF, 
-	0x14, 0x14, 0x14, 0xFF, 0x14, 
-	0x10, 0x10, 0x10, 0x1F, 0x00, 
-	0x00, 0x00, 0x00, 0xF0, 0x10, 
-	0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 
-	0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 
-	0xFF, 0xFF, 0xFF, 0x00, 0x00, 
-	0x00, 0x00, 0x00, 0xFF, 0xFF, 
-	0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 
-	0x38, 0x44, 0x44, 0x38, 0x44, 
-	0x7C, 0x2A, 0x2A, 0x3E, 0x14, 
-	0x7E, 0x02, 0x02, 0x06, 0x06, 
-	0x02, 0x7E, 0x02, 0x7E, 0x02, 
-	0x63, 0x55, 0x49, 0x41, 0x63, 
-	0x38, 0x44, 0x44, 0x3C, 0x04, 
-	0x40, 0x7E, 0x20, 0x1E, 0x20, 
-	0x06, 0x02, 0x7E, 0x02, 0x02, 
-	0x99, 0xA5, 0xE7, 0xA5, 0x99, 
-	0x1C, 0x2A, 0x49, 0x2A, 0x1C, 
-	0x4C, 0x72, 0x01, 0x72, 0x4C, 
-	0x30, 0x4A, 0x4D, 0x4D, 0x30, 
-	0x30, 0x48, 0x78, 0x48, 0x30, 
-	0xBC, 0x62, 0x5A, 0x46, 0x3D, 
-	0x3E, 0x49, 0x49, 0x49, 0x00, 
-	0x7E, 0x01, 0x01, 0x01, 0x7E, 
-	0x2A, 0x2A, 0x2A, 0x2A, 0x2A, 
-	0x44, 0x44, 0x5F, 0x44, 0x44, 
-	0x40, 0x51, 0x4A, 0x44, 0x40, 
-	0x40, 0x44, 0x4A, 0x51, 0x40, 
-	0x00, 0x00, 0xFF, 0x01, 0x03, 
-	0xE0, 0x80, 0xFF, 0x00, 0x00, 
-	0x08, 0x08, 0x6B, 0x6B, 0x08,
-	0x36, 0x12, 0x36, 0x24, 0x36, 
-	0x06, 0x0F, 0x09, 0x0F, 0x06, 
-	0x00, 0x00, 0x18, 0x18, 0x00, 
-	0x00, 0x00, 0x10, 0x10, 0x00, 
-	0x30, 0x40, 0xFF, 0x01, 0x01, 
-	0x00, 0x1F, 0x01, 0x01, 0x1E, 
-	0x00, 0x19, 0x1D, 0x17, 0x12, 
-	0x00, 0x3C, 0x3C, 0x3C, 0x3C, 
-	0x00, 0x00, 0x00, 0x00, 0x00, 
+static unsigned char font[] = {
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x3E, 0x5B, 0x4F, 0x5B, 0x3E, 0x3E, 0x6B,
+    0x4F, 0x6B, 0x3E, 0x1C, 0x3E, 0x7C, 0x3E, 0x1C, 0x18, 0x3C, 0x7E, 0x3C,
+    0x18, 0x1C, 0x57, 0x7D, 0x57, 0x1C, 0x1C, 0x5E, 0x7F, 0x5E, 0x1C, 0x00,
+    0x18, 0x3C, 0x18, 0x00, 0xFF, 0xE7, 0xC3, 0xE7, 0xFF, 0x00, 0x18, 0x24,
+    0x18, 0x00, 0xFF, 0xE7, 0xDB, 0xE7, 0xFF, 0x30, 0x48, 0x3A, 0x06, 0x0E,
+    0x26, 0x29, 0x79, 0x29, 0x26, 0x40, 0x7F, 0x05, 0x05, 0x07, 0x40, 0x7F,
+    0x05, 0x25, 0x3F, 0x5A, 0x3C, 0xE7, 0x3C, 0x5A, 0x7F, 0x3E, 0x1C, 0x1C,
+    0x08, 0x08, 0x1C, 0x1C, 0x3E, 0x7F, 0x14, 0x22, 0x7F, 0x22, 0x14, 0x5F,
+    0x5F, 0x00, 0x5F, 0x5F, 0x06, 0x09, 0x7F, 0x01, 0x7F, 0x00, 0x66, 0x89,
+    0x95, 0x6A, 0x60, 0x60, 0x60, 0x60, 0x60, 0x94, 0xA2, 0xFF, 0xA2, 0x94,
+    0x08, 0x04, 0x7E, 0x04, 0x08, 0x10, 0x20, 0x7E, 0x20, 0x10, 0x08, 0x08,
+    0x2A, 0x1C, 0x08, 0x08, 0x1C, 0x2A, 0x08, 0x08, 0x1E, 0x10, 0x10, 0x10,
+    0x10, 0x0C, 0x1E, 0x0C, 0x1E, 0x0C, 0x30, 0x38, 0x3E, 0x38, 0x30, 0x06,
+    0x0E, 0x3E, 0x0E, 0x06, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x5F,
+    0x00, 0x00, 0x00, 0x07, 0x00, 0x07, 0x00, 0x14, 0x7F, 0x14, 0x7F, 0x14,
+    0x24, 0x2A, 0x7F, 0x2A, 0x12, 0x23, 0x13, 0x08, 0x64, 0x62, 0x36, 0x49,
+    0x56, 0x20, 0x50, 0x00, 0x08, 0x07, 0x03, 0x00, 0x00, 0x1C, 0x22, 0x41,
+    0x00, 0x00, 0x41, 0x22, 0x1C, 0x00, 0x2A, 0x1C, 0x7F, 0x1C, 0x2A, 0x08,
+    0x08, 0x3E, 0x08, 0x08, 0x00, 0x80, 0x70, 0x30, 0x00, 0x08, 0x08, 0x08,
+    0x08, 0x08, 0x00, 0x00, 0x60, 0x60, 0x00, 0x20, 0x10, 0x08, 0x04, 0x02,
+    0x3E, 0x51, 0x49, 0x45, 0x3E, 0x00, 0x42, 0x7F, 0x40, 0x00, 0x72, 0x49,
+    0x49, 0x49, 0x46, 0x21, 0x41, 0x49, 0x4D, 0x33, 0x18, 0x14, 0x12, 0x7F,
+    0x10, 0x27, 0x45, 0x45, 0x45, 0x39, 0x3C, 0x4A, 0x49, 0x49, 0x31, 0x41,
+    0x21, 0x11, 0x09, 0x07, 0x36, 0x49, 0x49, 0x49, 0x36, 0x46, 0x49, 0x49,
+    0x29, 0x1E, 0x00, 0x00, 0x14, 0x00, 0x00, 0x00, 0x40, 0x34, 0x00, 0x00,
+    0x00, 0x08, 0x14, 0x22, 0x41, 0x14, 0x14, 0x14, 0x14, 0x14, 0x00, 0x41,
+    0x22, 0x14, 0x08, 0x02, 0x01, 0x59, 0x09, 0x06, 0x3E, 0x41, 0x5D, 0x59,
+    0x4E, 0x7C, 0x12, 0x11, 0x12, 0x7C, 0x7F, 0x49, 0x49, 0x49, 0x36, 0x3E,
+    0x41, 0x41, 0x41, 0x22, 0x7F, 0x41, 0x41, 0x41, 0x3E, 0x7F, 0x49, 0x49,
+    0x49, 0x41, 0x7F, 0x09, 0x09, 0x09, 0x01, 0x3E, 0x41, 0x41, 0x51, 0x73,
+    0x7F, 0x08, 0x08, 0x08, 0x7F, 0x00, 0x41, 0x7F, 0x41, 0x00, 0x20, 0x40,
+    0x41, 0x3F, 0x01, 0x7F, 0x08, 0x14, 0x22, 0x41, 0x7F, 0x40, 0x40, 0x40,
+    0x40, 0x7F, 0x02, 0x1C, 0x02, 0x7F, 0x7F, 0x04, 0x08, 0x10, 0x7F, 0x3E,
+    0x41, 0x41, 0x41, 0x3E, 0x7F, 0x09, 0x09, 0x09, 0x06, 0x3E, 0x41, 0x51,
+    0x21, 0x5E, 0x7F, 0x09, 0x19, 0x29, 0x46, 0x26, 0x49, 0x49, 0x49, 0x32,
+    0x03, 0x01, 0x7F, 0x01, 0x03, 0x3F, 0x40, 0x40, 0x40, 0x3F, 0x1F, 0x20,
+    0x40, 0x20, 0x1F, 0x3F, 0x40, 0x38, 0x40, 0x3F, 0x63, 0x14, 0x08, 0x14,
+    0x63, 0x03, 0x04, 0x78, 0x04, 0x03, 0x61, 0x59, 0x49, 0x4D, 0x43, 0x00,
+    0x7F, 0x41, 0x41, 0x41, 0x02, 0x04, 0x08, 0x10, 0x20, 0x00, 0x41, 0x41,
+    0x41, 0x7F, 0x04, 0x02, 0x01, 0x02, 0x04, 0x40, 0x40, 0x40, 0x40, 0x40,
+    0x00, 0x03, 0x07, 0x08, 0x00, 0x20, 0x54, 0x54, 0x78, 0x40, 0x7F, 0x28,
+    0x44, 0x44, 0x38, 0x38, 0x44, 0x44, 0x44, 0x28, 0x38, 0x44, 0x44, 0x28,
+    0x7F, 0x38, 0x54, 0x54, 0x54, 0x18, 0x00, 0x08, 0x7E, 0x09, 0x02, 0x18,
+    0xA4, 0xA4, 0x9C, 0x78, 0x7F, 0x08, 0x04, 0x04, 0x78, 0x00, 0x44, 0x7D,
+    0x40, 0x00, 0x20, 0x40, 0x40, 0x3D, 0x00, 0x7F, 0x10, 0x28, 0x44, 0x00,
+    0x00, 0x41, 0x7F, 0x40, 0x00, 0x7C, 0x04, 0x78, 0x04, 0x78, 0x7C, 0x08,
+    0x04, 0x04, 0x78, 0x38, 0x44, 0x44, 0x44, 0x38, 0xFC, 0x18, 0x24, 0x24,
+    0x18, 0x18, 0x24, 0x24, 0x18, 0xFC, 0x7C, 0x08, 0x04, 0x04, 0x08, 0x48,
+    0x54, 0x54, 0x54, 0x24, 0x04, 0x04, 0x3F, 0x44, 0x24, 0x3C, 0x40, 0x40,
+    0x20, 0x7C, 0x1C, 0x20, 0x40, 0x20, 0x1C, 0x3C, 0x40, 0x30, 0x40, 0x3C,
+    0x44, 0x28, 0x10, 0x28, 0x44, 0x4C, 0x90, 0x90, 0x90, 0x7C, 0x44, 0x64,
+    0x54, 0x4C, 0x44, 0x00, 0x08, 0x36, 0x41, 0x00, 0x00, 0x00, 0x77, 0x00,
+    0x00, 0x00, 0x41, 0x36, 0x08, 0x00, 0x02, 0x01, 0x02, 0x04, 0x02, 0x3C,
+    0x26, 0x23, 0x26, 0x3C, 0x1E, 0xA1, 0xA1, 0x61, 0x12, 0x3A, 0x40, 0x40,
+    0x20, 0x7A, 0x38, 0x54, 0x54, 0x55, 0x59, 0x21, 0x55, 0x55, 0x79, 0x41,
+    0x21, 0x54, 0x54, 0x78, 0x41, 0x21, 0x55, 0x54, 0x78, 0x40, 0x20, 0x54,
+    0x55, 0x79, 0x40, 0x0C, 0x1E, 0x52, 0x72, 0x12, 0x39, 0x55, 0x55, 0x55,
+    0x59, 0x39, 0x54, 0x54, 0x54, 0x59, 0x39, 0x55, 0x54, 0x54, 0x58, 0x00,
+    0x00, 0x45, 0x7C, 0x41, 0x00, 0x02, 0x45, 0x7D, 0x42, 0x00, 0x01, 0x45,
+    0x7C, 0x40, 0xF0, 0x29, 0x24, 0x29, 0xF0, 0xF0, 0x28, 0x25, 0x28, 0xF0,
+    0x7C, 0x54, 0x55, 0x45, 0x00, 0x20, 0x54, 0x54, 0x7C, 0x54, 0x7C, 0x0A,
+    0x09, 0x7F, 0x49, 0x32, 0x49, 0x49, 0x49, 0x32, 0x32, 0x48, 0x48, 0x48,
+    0x32, 0x32, 0x4A, 0x48, 0x48, 0x30, 0x3A, 0x41, 0x41, 0x21, 0x7A, 0x3A,
+    0x42, 0x40, 0x20, 0x78, 0x00, 0x9D, 0xA0, 0xA0, 0x7D, 0x39, 0x44, 0x44,
+    0x44, 0x39, 0x3D, 0x40, 0x40, 0x40, 0x3D, 0x3C, 0x24, 0xFF, 0x24, 0x24,
+    0x48, 0x7E, 0x49, 0x43, 0x66, 0x2B, 0x2F, 0xFC, 0x2F, 0x2B, 0xFF, 0x09,
+    0x29, 0xF6, 0x20, 0xC0, 0x88, 0x7E, 0x09, 0x03, 0x20, 0x54, 0x54, 0x79,
+    0x41, 0x00, 0x00, 0x44, 0x7D, 0x41, 0x30, 0x48, 0x48, 0x4A, 0x32, 0x38,
+    0x40, 0x40, 0x22, 0x7A, 0x00, 0x7A, 0x0A, 0x0A, 0x72, 0x7D, 0x0D, 0x19,
+    0x31, 0x7D, 0x26, 0x29, 0x29, 0x2F, 0x28, 0x26, 0x29, 0x29, 0x29, 0x26,
+    0x30, 0x48, 0x4D, 0x40, 0x20, 0x38, 0x08, 0x08, 0x08, 0x08, 0x08, 0x08,
+    0x08, 0x08, 0x38, 0x2F, 0x10, 0xC8, 0xAC, 0xBA, 0x2F, 0x10, 0x28, 0x34,
+    0xFA, 0x00, 0x00, 0x7B, 0x00, 0x00, 0x08, 0x14, 0x2A, 0x14, 0x22, 0x22,
+    0x14, 0x2A, 0x14, 0x08, 0xAA, 0x00, 0x55, 0x00, 0xAA, 0xAA, 0x55, 0xAA,
+    0x55, 0xAA, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x10, 0x10, 0x10, 0xFF, 0x00,
+    0x14, 0x14, 0x14, 0xFF, 0x00, 0x10, 0x10, 0xFF, 0x00, 0xFF, 0x10, 0x10,
+    0xF0, 0x10, 0xF0, 0x14, 0x14, 0x14, 0xFC, 0x00, 0x14, 0x14, 0xF7, 0x00,
+    0xFF, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0x14, 0x14, 0xF4, 0x04, 0xFC, 0x14,
+    0x14, 0x17, 0x10, 0x1F, 0x10, 0x10, 0x1F, 0x10, 0x1F, 0x14, 0x14, 0x14,
+    0x1F, 0x00, 0x10, 0x10, 0x10, 0xF0, 0x00, 0x00, 0x00, 0x00, 0x1F, 0x10,
+    0x10, 0x10, 0x10, 0x1F, 0x10, 0x10, 0x10, 0x10, 0xF0, 0x10, 0x00, 0x00,
+    0x00, 0xFF, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0x10, 0xFF,
+    0x10, 0x00, 0x00, 0x00, 0xFF, 0x14, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0x00,
+    0x00, 0x1F, 0x10, 0x17, 0x00, 0x00, 0xFC, 0x04, 0xF4, 0x14, 0x14, 0x17,
+    0x10, 0x17, 0x14, 0x14, 0xF4, 0x04, 0xF4, 0x00, 0x00, 0xFF, 0x00, 0xF7,
+    0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0x14, 0xF7, 0x00, 0xF7, 0x14, 0x14,
+    0x14, 0x17, 0x14, 0x10, 0x10, 0x1F, 0x10, 0x1F, 0x14, 0x14, 0x14, 0xF4,
+    0x14, 0x10, 0x10, 0xF0, 0x10, 0xF0, 0x00, 0x00, 0x1F, 0x10, 0x1F, 0x00,
+    0x00, 0x00, 0x1F, 0x14, 0x00, 0x00, 0x00, 0xFC, 0x14, 0x00, 0x00, 0xF0,
+    0x10, 0xF0, 0x10, 0x10, 0xFF, 0x10, 0xFF, 0x14, 0x14, 0x14, 0xFF, 0x14,
+    0x10, 0x10, 0x10, 0x1F, 0x00, 0x00, 0x00, 0x00, 0xF0, 0x10, 0xFF, 0xFF,
+    0xFF, 0xFF, 0xFF, 0xF0, 0xF0, 0xF0, 0xF0, 0xF0, 0xFF, 0xFF, 0xFF, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0x0F, 0x0F, 0x0F, 0x0F, 0x0F, 0x38,
+    0x44, 0x44, 0x38, 0x44, 0x7C, 0x2A, 0x2A, 0x3E, 0x14, 0x7E, 0x02, 0x02,
+    0x06, 0x06, 0x02, 0x7E, 0x02, 0x7E, 0x02, 0x63, 0x55, 0x49, 0x41, 0x63,
+    0x38, 0x44, 0x44, 0x3C, 0x04, 0x40, 0x7E, 0x20, 0x1E, 0x20, 0x06, 0x02,
+    0x7E, 0x02, 0x02, 0x99, 0xA5, 0xE7, 0xA5, 0x99, 0x1C, 0x2A, 0x49, 0x2A,
+    0x1C, 0x4C, 0x72, 0x01, 0x72, 0x4C, 0x30, 0x4A, 0x4D, 0x4D, 0x30, 0x30,
+    0x48, 0x78, 0x48, 0x30, 0xBC, 0x62, 0x5A, 0x46, 0x3D, 0x3E, 0x49, 0x49,
+    0x49, 0x00, 0x7E, 0x01, 0x01, 0x01, 0x7E, 0x2A, 0x2A, 0x2A, 0x2A, 0x2A,
+    0x44, 0x44, 0x5F, 0x44, 0x44, 0x40, 0x51, 0x4A, 0x44, 0x40, 0x40, 0x44,
+    0x4A, 0x51, 0x40, 0x00, 0x00, 0xFF, 0x01, 0x03, 0xE0, 0x80, 0xFF, 0x00,
+    0x00, 0x08, 0x08, 0x6B, 0x6B, 0x08, 0x36, 0x12, 0x36, 0x24, 0x36, 0x06,
+    0x0F, 0x09, 0x0F, 0x06, 0x00, 0x00, 0x18, 0x18, 0x00, 0x00, 0x00, 0x10,
+    0x10, 0x00, 0x30, 0x40, 0xFF, 0x01, 0x01, 0x00, 0x1F, 0x01, 0x01, 0x1E,
+    0x00, 0x19, 0x1D, 0x17, 0x12, 0x00, 0x3C, 0x3C, 0x3C, 0x3C, 0x00, 0x00,
+    0x00, 0x00, 0x00,
 };
 #endif
diff --git a/library.properties b/library.properties
index 1eed602..4886317 100644
--- a/library.properties
+++ b/library.properties
@@ -7,4 +7,4 @@ paragraph=Adafruit 2.8" TFT display Library
 category=Display
 url=https://github.com/adafruit/TFTLCD-Library
 architectures=*
-depends=Adafruit GFX Library
+depends=Adafruit GFX Library, Adafruit BusIO
diff --git a/pin_magic.h b/pin_magic.h
index a6e9f11..551f652 100644
--- a/pin_magic.h
+++ b/pin_magic.h
@@ -1,3 +1,6 @@
+/*!
+ * @file pin_magic.h
+ */
 #ifndef _pin_magic_
 #define _pin_magic_
 
@@ -49,11 +52,13 @@
 // Due dig. pin :  40  39  38  37  36  35  34  33
 // Due port/pin : PC8 PC7 PC6 PC5 PC4 PC3 PC2 PC1 (one contiguous PORT. -ish…)
 
-// Pixel read operations require a minimum 400 nS delay from RD_ACTIVE
-// to polling the input pins.  At 16 MHz, one machine cycle is 62.5 nS.
-// This code burns 7 cycles (437.5 nS) doing nothing; the RJMPs are
-// equivalent to two NOPs each, final NOP burns the 7th cycle, and the
-// last line is a radioactive mutant emoticon.
+/*!
+ * @brief Pixel read operations require a minimum 400 nS delay from RD_ACTIVE
+ * to polling the input pins.  At 16 MHz, one machine cycle is 62.5 nS.
+ * This code burns 7 cycles (437.5 nS) doing nothing; the RJMPs are
+ * equivalent to two NOPs each, final NOP burns the 7th cycle, and the
+ * last line is a radioactive mutant emoticon.
+ */
 #define DELAY7                                                                 \
   asm volatile("rjmp .+0"                                                      \
                "\n\t"                                                          \
@@ -485,22 +490,24 @@
 #define CS_ACTIVE CS_PORT &= ~CS_MASK
 #define CS_IDLE CS_PORT |= CS_MASK
 
-#else // Breakout board
+#else                                    // Breakout board
 
 // When using the TFT breakout board, control pins are configurable.
-#define RD_ACTIVE *rdPort &= rdPinUnset
-#define RD_IDLE *rdPort |= rdPinSet
-#define WR_ACTIVE *wrPort &= wrPinUnset
-#define WR_IDLE *wrPort |= wrPinSet
-#define CD_COMMAND *cdPort &= cdPinUnset
-#define CD_DATA *cdPort |= cdPinSet
-#define CS_ACTIVE *csPort &= csPinUnset
-#define CS_IDLE *csPort |= csPinSet
+#define RD_ACTIVE *rdPort &= rdPinUnset  //!< Activate read mode
+#define RD_IDLE *rdPort |= rdPinSet      //!< Set read mode to idle
+#define WR_ACTIVE *wrPort &= wrPinUnset  //!< Activate write mode
+#define WR_IDLE *wrPort |= wrPinSet      //!< Set write mode to idle
+#define CD_COMMAND *cdPort &= cdPinUnset //!< Command/data command mode
+#define CD_DATA *cdPort |= cdPinSet      //!< Command/data data mode
+#define CS_ACTIVE *csPort &= csPinUnset  //!< Activate chip select
+#define CS_IDLE *csPort |= csPinSet      //!< Set chip select to idle
 
 #endif
 #endif
 
-// Data write strobe, ~2 instructions and always inline
+/*!
+ * @brief Data write strobe, ~2 instructions and always inline
+ */
 #define WR_STROBE                                                              \
   {                                                                            \
     WR_ACTIVE;                                                                 \
@@ -510,7 +517,9 @@
 // These higher-level operations are usually functionalized,
 // except on Mega where's there's gobs and gobs of program space.
 
-// Set value of TFT register: 8-bit address, 8-bit value
+/*!
+ * @brief Set value of TFT register: 8-bit address, 8-bit value
+ */
 #define writeRegister8inline(a, d)                                             \
   {                                                                            \
     CD_COMMAND;                                                                \
@@ -519,8 +528,10 @@
     write8(d);                                                                 \
   }
 
-// Set value of TFT register: 16-bit address, 16-bit value
-// See notes at top about macro expansion, hence hi & lo temp vars
+/*!
+ * @brief Set value of TFT register: 16-bit address, 16-bit value
+ * See notes at top about macro expansion, hence hi & lo temp vars
+ */
 #define writeRegister16inline(a, d)                                            \
   {                                                                            \
     uint8_t hi, lo;                                                            \
@@ -536,7 +547,10 @@
     write8(lo);                                                                \
   }
 
-// Set value of 2 TFT registers: Two 8-bit addresses (hi & lo), 16-bit value
+/*!
+ * @brief Set value of 2 TFT registers: Two 8-bit addresses (hi & lo), 16-bit
+ * value
+ */
 #define writeRegisterPairInline(aH, aL, d)                                     \
   {                                                                            \
     uint8_t hi = (d) >> 8, lo = (d);                                           \