#include <Arduino.h>
#include <SPI.h>      //for screen
#include <U8g2lib.h>  //for screen
#include <stdlib.h>

//screen setup 
U8G2_SH1106_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R2, 17, 20, 21);
//uint8_t *buf;
char outString[99];

void setup() {
  //Screen setup
  /* buf = (uint8_t *)malloc(u8g2.getBufferSize());
  u8g2.setBufferPtr(buf);
  u8g2.initDisplay();
  u8g2.clearDisplay();
  u8g2.setPowerSave(0); */
  u8g2.begin();
  u8g2.setFont(u8g2_font_ncenB14_tr);

  u8g2.clearBuffer();
  sprintf(outString,"helloworld");
  u8g2.drawStr(7,35,outString);
  u8g2.sendBuffer();
}

void loop() {
  // put your main code here, to run repeatedly:

}