Init commit with many years of arduino sketches and projects. I dont know if the esp8266 includes much, but there are also libraries. I hope they dont have crazy automatic versioning through the Arduino IDE.

Projects/ProgLab/Instrument/Instrument.ino

@@ -0,0 +1,25 @@
+#include <Servo.h> 
+ 
+Servo myservo;
+ 
+int potpin = 0; 
+int potReading; 
+int photocellPin = 1;
+int photocellReading;
+ 
+void setup() 
+{ 
+  myservo.attach(9);
+} 
+ 
+void loop() 
+{ 
+  potReading = analogRead(potpin);           
+  potReading = map(potReading, 0, 1023, 0, 179);     
+  myservo.write(potReading);                  
+  photocellReading = analogRead(photocellPin);
+  
+  int thisPitch = map(photocellReading, 1, 1000, 120, 1500);
+  tone(8, thisPitch, 10);
+  delay(1);  
+}