Display.ino

/*
  Display Example
 
  This example demonstrates how to use the display functionality of the TKJHAT library.
  It shows how to write text, draw lines and circles, and clear the display.
 
  Circuit:
  - SSD1306 display integrated in Pico HAT
 
  created 2026
*/
#include "TKJHAT.h"
 
// Create TKJHAT object which provides access to onboard components
TKJHAT hat;
 
// Initializes serial communication and the TKJHAT hardware
void setup() {
    Serial.begin(9600);
    hat.begin();
}
 
void loop() {
    // Write text to the display, wait for 2 seconds, then clear the display
    hat.display.writeText("Hello HAT!");
    delay(2000);
    hat.display.clear();
 
    hat.display.drawLine(0, 0, 127, 63); // Draw a diagonal line across the display
    delay(2000);
 
    hat.display.drawLine(0, 63, 127, 0); // Draw the opposite diagonal
    delay(2000);
    
    hat.display.drawCircle(64, 32, 20, false); // Draw an empty circle at the center of the display
    delay(2000);
 
    hat.display.clear();
    hat.display.writeText("Goodbye!");
    delay(2000);
 
    hat.display.clear();
    hat.display.stopDisplay(); // Power off the display
}