added ADC control to hello world

blockBreaker.ino

@@ -2,28 +2,30 @@
 #include <SPI.h>      //for screen
 #include <U8g2lib.h>  //for screen
 #include <stdlib.h>
+#define ADC_PIN 26
 
-//screen setup 
+int adcVal = 0;
+float xLocation = 0;
+
+//screen setup
 U8G2_SH1106_128X64_NONAME_F_4W_HW_SPI u8g2(U8G2_R2, 17, 20, 21);
-uint8_t *buf;
+//uint8_t *buf;
 char outString[99];
 
 void setup() {
-  //Screen setup
+  //setup screen
-  buf = (uint8_t *)malloc(u8g2.getBufferSize());
+  u8g2.begin();
-  u8g2.setBufferPtr(buf);
-  u8g2.initDisplay();
-  u8g2.clearDisplay();
-  u8g2.setPowerSave(0);
   u8g2.setFont(u8g2_font_ncenB14_tr);
-
+  //setup ADC
-  u8g2.clearBuffer();
+  analogReadResolution(10);
-  sprintf(outString,"helloworld");
+  digitalWriteFast(23, 1);
-  u8g2.drawStr(7,35,outString);
-  u8g2.sendBuffer();
 }
 
 void loop() {
-  // put your main code here, to run repeatedly:
+  adcVal = analogRead(ADC_PIN);
-
+  xLocation = (((float)adcVal/1024)*100);
+  u8g2.clearBuffer();
+  sprintf(outString, "helloworld");
+  u8g2.drawStr(xLocation, 35, outString);
+  u8g2.sendBuffer();
 }