Disable font 4 by default. Add Example11

Author: PaulZC

examples/Example11_BigFont/Example11_BigFont.ino

@@ -0,0 +1,85 @@
+/*
+  SFE_MicroOLED Library Demo
+  Paul Clark @ SparkFun Electronics
+  Original Creation Date: April 3rd, 2021
+
+  This sketch demonstrates how to use the Large Letter 31x48 font.
+  This font is disabled by default. To enable it, you need to edit
+  SFE_MicroOLED.cpp and uncomment the line which says:
+  #include "util/fontlargeletter31x48.h"
+
+  Hardware Connections:
+    This example assumes you are using Qwiic. See the SPI examples for
+    a detailed breakdown of connection info.
+
+  Want to support open source hardware? Buy a board from SparkFun!
+  https://www.sparkfun.com/products/13003
+  https://www.sparkfun.com/products/14532
+
+  This code is beerware; if you see me (or any other SparkFun employee) at the
+  local, and you've found our code helpful, please buy us a round!
+  
+  Distributed as-is; no warranty is given.
+*/
+
+#include <Wire.h>
+#include <SFE_MicroOLED.h> //Click here to get the library: http://librarymanager/All#SparkFun_Micro_OLED
+
+#define PIN_RESET 9
+
+// From version v1.3, we can instantiate oled like this (but only for I2C)
+MicroOLED oled(PIN_RESET);
+
+void setup()
+{
+  Serial.begin(115200); // Begin the Serial port
+  Serial.println(F("SparkFun MicroOLED Example"));
+  
+  delay(100);
+  Wire.begin();
+
+  // This is the new way of initializing the OLED.
+  // We can pass a different I2C address and TwoWire port
+  // If 0x3D does not work, try 0x3C
+  oled.begin(0x3C, Wire);    // Initialize the OLED
+
+  // Print the total number of fonts loaded into memory
+  Serial.print(F("There are "));
+  Serial.print(oled.getTotalFonts());
+  Serial.println(F(" fonts available"));
+
+  oled.clear(ALL); // Clear the display's internal memory
+  oled.display();  // Display what's in the buffer (splashscreen)
+
+  delay(1000); // Delay 1000 ms
+
+  oled.clear(PAGE); // Clear the buffer.
+
+  if (oled.setFontType(4) == 0)  // Set font to type 4 (fontlargeletter31x48)
+  {
+    Serial.println(F("Could not enable font 4 (fontlargeletter31x48)!"));
+    Serial.println(F("Have you uncommented #include \"util/fontlargeletter31x48.h\" in SFE_MicroOLED.cpp?"));
+    Serial.println(F("Freezing..."));
+    while (1)
+      ; // Do nothing more
+  }
+}
+
+void loop()
+{
+  // Demonstrate font 4
+  // There are 58 possible characters in the font 4 type: A - z
+  // Lets run through all of them and print them out!
+  for (int i = 'A'; i <= 'z'; i += 2)
+  {
+    oled.clear(PAGE);     // Clear the screen
+    
+    oled.setCursor(0, 0); // Set cursor to top-left
+    
+    oled.write(i);    // Write a byte out as a character
+    oled.write(i+1);  // Write the next byte out as a character
+    oled.display();   // Draw on the screen
+
+    delay(500);           // Delay 500 ms
+  }
+}

src/SFE_MicroOLED.cpp

@@ -59,8 +59,8 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 #include "util/fontlargenumber.h"	// Comment this line if you do not need the large number font
 #include "util/7segment.h"			// Comment this line if you do not need the 7segment font
 // The 31x48 font is handy, but uses a big chunk of flash memory - about 7k.
-// If you want to save memory, comment out the line below:
-#include "util/fontlargeletter31x48.h"
+// If you want to use this font, uncomment the line below:
+//#include "util/fontlargeletter31x48.h"
 
 #define MAXFONTS 5 // Do not change this line