Update analogdemo.cpp

Template Project/src/analogdemo.cpp

@@ -1,4 +1,5 @@
 #include <ESPMegaPRO.h>
+#define ADC
 
 void setup()
 {
@@ -8,9 +9,14 @@ void setup()
 
 void loop()
 {
+    #ifdef DAC
     for(int i=0;i<4096;i++) {
         ESPMega_dacWrite(0,i);
         double dac_val_sine = 2047.5*sin(i*2*PI/2047.5)+2047.5;
         ESPMega_dacWrite(1,(int)dac_val_sine);
     }
+    #endif
+    #ifdef ADC
+    Serial.printf("A0: %d",ESPMega_analogRead(0));
+    #endif
 }