attempted screen hello world

blockBreaker.ino

@@ -4,7 +4,7 @@
 #include <stdlib.h>
 
 //screen setup 
-U8G2_SH1106_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R2, 17, 21, 20);
+U8G2_SH1106_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R2, 17, 20, 21);
 uint8_t *buf;
 char outString[99];
 
@@ -15,9 +15,13 @@ void setup() {
   u8g2.initDisplay();
   u8g2.clearDisplay();
   u8g2.setPowerSave(0);
+  u8g2.setFont(u8g2_font_ncenB14_tr);
+
+  u8g2.clearBuffer();
+  sprintf(outString,"helloworld");
+  u8g2.drawStr(7,35,outString);
+  u8g2.sendBuffer();
 }
-//windows test 
-//linux test 
 
 void loop() {
   // put your main code here, to run repeatedly: