#include <TinyWireM.h>
#include<util/delay.h>
#define F_CPU 8000000U

#define SSD1306_ADDR 0x3C // I2C address of SSD1306
#define OLED_WIDTH 128 // OLED display width
#define OLED_HEIGHT 32 // OLED display height

void i2cSendCommand(uint8_t command) {
  TinyWireM.beginTransmission(SSD1306_ADDR);
  TinyWireM.send(0x00);
  TinyWireM.send(command);
  TinyWireM.endTransmission();
}

void i2cSendData(uint8_t data) {
  TinyWireM.beginTransmission(SSD1306_ADDR);
  TinyWireM.send(0x40);
  TinyWireM.send(data);
  TinyWireM.endTransmission();
}

void setcursor(uint8_t row, uint8_t col) {


}

void setup() {
  TinyWireM.begin(); // Initialize I2C communication
  
  // Turn on the OLED display
  i2cSendCommand(0xAE);
  i2cSendCommand(0xAF);
  
  // Set display to horizontal addressing mode
    i2cSendCommand(0xA1);
  i2cSendCommand(0x20);
  i2cSendCommand(0x00);
  
  // Set column start and end address to 0 and 127 respectively
  i2cSendCommand(0x21);
  i2cSendCommand(0);
  i2cSendCommand(OLED_WIDTH - 1);
  
  // Set page start and end address to 0 and 3 respectively
  i2cSendCommand(0x22);
  i2cSendCommand(0);
  i2cSendCommand((OLED_HEIGHT / 4) - 1);
  
  // Set cursor position to pixel (30, 63)
  i2cSendCommand(0x21);
  i2cSendCommand(120);
  i2cSendCommand(127);
  i2cSendCommand(0x22);
  i2cSendCommand(7);
  i2cSendCommand(7);
  
  // Send "pulse" and data 60
  i2cSendData('p');
 // i2cSendData('u');
  //i2cSendData('l');
  //i2cSendData('s');
  //i2cSendData('e');
  //i2cSendData(':');
 // i2cSendData(' ');
 // i2cSendData(60);
}

void loop() {
  // Nothing to do here
}