// Jeff Ritchie april 5 20206 for fab academy week 11
// initial code from chatgpt. I played around with the parameters and added code from hellobuttonblink

#include <Wire.h> //library used for I2C
#include <Adafruit_GFX.h> //library used for graphics
#include <Adafruit_SH110X.h> //library used for OLED
#define Button_pin D10 //establishes pin for button
Adafruit_SH1107 display = Adafruit_SH1107(64, 128, &Wire); //oled display controled by wire

void setup() {
  //setting the intiial display
  Serial.begin(115200); //set baud rate
  Wire.begin();//begin function for wire
  pinMode(Button_pin, INPUT_PULLUP);  // button to GND
  display.begin(0x3C, true); //establishes the I2C address of the display 
  display.setRotation(1); //sets the roation of the OLED display  
  display.clearDisplay(); //clears previous display
  display.setCursor(0, 20); //sets where the message will start- x pixels and y pixels. 0 0 is origin
  display.setTextSize(2); //sets the size of the text to be displayed. 1 is smallest
  display.setTextColor(SH110X_WHITE); //text color
  display.println("Hey world"); //I couldn't fit hello world on the screen at size 2
  display.display(); //displays instance above.
}

void loop() {
  if (digitalRead(Button_pin) == LOW) { //if loop if button is pressed
    display.clearDisplay(); //clears previous display
    display.setCursor(0, 10); //sets where the message will start- x pixels and 10 pixels down. 0 0 is origin
    display.setTextSize(1); //sets the size of the text to be displayed. 
    display.setTextColor(SH110X_WHITE); //text color
    display.println("I said hey there"); //
    display.display(); //displays instance above.
    delay(200); //debounce button
  }
  else {
    display.clearDisplay(); //clears previous display
    display.setCursor(0, 20); //sets where the message will start- x pixels and y pixels. 0 0 is origin
    display.setTextSize(2); //sets the size of the text to be displayed. 
    display.setTextColor(SH110X_WHITE); //text color
    display.println("Hey world"); //I couldn't fit hello world on the screen at size 2
    display.display(); //displays instance above.
  }
}